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MassiveAtoms
2019-06-26 13:11:16 -03:00
parent 20c5e25619
commit 964b27420b
50 changed files with 248999 additions and 37 deletions
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46
thirdparty/SQLiteCpp/include/SQLiteCpp/Assertion.h vendored Normal file
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/**
* @file Assertion.h
* @ingroup SQLiteCpp
* @brief Definition of the SQLITECPP_ASSERT() macro.
*
* Copyright (c) 2012-2019 Sebastien Rombauts (sebastien.rombauts@gmail.com)
*
* Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
* or copy at http://opensource.org/licenses/MIT)
*/
#pragma once
#include <cassert>
/**
* SQLITECPP_ASSERT SQLITECPP_ASSERT() is used in destructors, where exceptions shall not be thrown
*
* Define SQLITECPP_ENABLE_ASSERT_HANDLER at the project level
* and define a SQLite::assertion_failed() assertion handler
* to tell SQLiteC++ to use it instead of assert() when an assertion fail.
*/
#ifdef SQLITECPP_ENABLE_ASSERT_HANDLER
// if an assert handler is provided by user code, use it instead of assert()
namespace SQLite
{
// declaration of the assert handler to define in user code
void assertion_failed(const char* apFile, const long apLine, const char* apFunc,
const char* apExpr, const char* apMsg);
#ifdef _MSC_VER
#define __func__ __FUNCTION__
#endif
// call the assert handler provided by user code
#define SQLITECPP_ASSERT(expression, message) \
if (!(expression)) SQLite::assertion_failed(__FILE__, __LINE__, __func__, #expression, message)
} // namespace SQLite
#else
// if no assert handler provided by user code, use standard assert()
// (note: in release mode assert() does nothing)
#define SQLITECPP_ASSERT(expression, message) assert(expression && message)
#endif

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thirdparty/SQLiteCpp/include/SQLiteCpp/Backup.h vendored Normal file
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/**
* @file Backup.h
* @ingroup SQLiteCpp
* @brief Backup is used to backup a database file in a safe and online way.
*
* Copyright (c) 2015 Shibao HONG (shibaohong@outlook.com)
* Copyright (c) 2015-2019 Sebastien Rombauts (sebastien.rombauts@gmail.com)
*
* Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
* or copy at http://opensource.org/licenses/MIT)
*/
#pragma once
#include <SQLiteCpp/Database.h>
#include <string>
// Forward declaration to avoid inclusion of <sqlite3.h> in a header
struct sqlite3_backup;
namespace SQLite
{
/**
* @brief RAII encapsulation of a SQLite Database Backup process.
*
* A Backup object is used to backup a source database file to a destination database file
* in a safe and online way.
*
* Resource Acquisition Is Initialization (RAII) means that the Backup Resource
* is allocated in the constructor and released in the destructor, so that there is
* no need to worry about memory management or the validity of the underlying SQLite Backup.
*
* Thread-safety: a Backup object shall not be shared by multiple threads, because :
* 1) in the SQLite "Thread Safe" mode, "SQLite can be safely used by multiple threads
* provided that no single database connection is used simultaneously in two or more threads."
* 2) the SQLite "Serialized" mode is not supported by SQLiteC++,
* because of the way it shares the underling SQLite precompiled statement
* in a custom shared pointer (See the inner class "Statement::Ptr").
*/
class Backup
{
public:
/**
* @brief Initialize a SQLite Backup object.
*
* Initialize a SQLite Backup object for the source database and destination database.
* The database name is "main" for the main database, "temp" for the temporary database,
* or the name specified after the AS keyword in an ATTACH statement for an attached database.
*
* Exception is thrown in case of error, then the Backup object is NOT constructed.
*
* @param[in] aDestDatabase Destination database connection
* @param[in] apDestDatabaseName Destination database name
* @param[in] aSrcDatabase Source database connection
* @param[in] apSrcDatabaseName Source database name
*
* @throw SQLite::Exception in case of error
*/
Backup(Database& aDestDatabase,
const char* apDestDatabaseName,
Database& aSrcDatabase,
const char* apSrcDatabaseName);
/**
* @brief Initialize a SQLite Backup object.
*
* Initialize a SQLite Backup object for source database and destination database.
* The database name is "main" for the main database, "temp" for the temporary database,
* or the name specified after the AS keyword in an ATTACH statement for an attached database.
*
* Exception is thrown in case of error, then the Backup object is NOT constructed.
*
* @param[in] aDestDatabase Destination database connection
* @param[in] aDestDatabaseName Destination database name
* @param[in] aSrcDatabase Source database connection
* @param[in] aSrcDatabaseName Source database name
*
* @throw SQLite::Exception in case of error
*/
Backup(Database& aDestDatabase,
const std::string& aDestDatabaseName,
Database& aSrcDatabase,
const std::string& aSrcDatabaseName);
/**
* @brief Initialize a SQLite Backup object for main databases.
*
* Initialize a SQLite Backup object for source database and destination database.
* Backup the main databases between the source and the destination.
*
* Exception is thrown in case of error, then the Backup object is NOT constructed.
*
* @param[in] aDestDatabase Destination database connection
* @param[in] aSrcDatabase Source database connection
*
* @throw SQLite::Exception in case of error
*/
Backup(Database& aDestDatabase,
Database& aSrcDatabase);
/// Release the SQLite Backup resource.
~Backup();
/**
* @brief Execute a step of backup with a given number of source pages to be copied
*
* Exception is thrown when SQLITE_IOERR_XXX, SQLITE_NOMEM, or SQLITE_READONLY is returned
* in sqlite3_backup_step(). These errors are considered fatal, so there is no point
* in retrying the call to executeStep().
*
* @param[in] aNumPage The number of source pages to be copied, with a negative value meaning all remaining source pages
*
* @return SQLITE_OK/SQLITE_DONE/SQLITE_BUSY/SQLITE_LOCKED
*
* @throw SQLite::Exception in case of error
*/
int executeStep(const int aNumPage = -1);
/// Return the number of source pages still to be backed up as of the most recent call to executeStep().
int getRemainingPageCount();
/// Return the total number of pages in the source database as of the most recent call to executeStep().
int getTotalPageCount();
private:
/// @{ Backup must be non-copyable
Backup(const Backup&);
Backup& operator=(const Backup&);
/// @}
private:
sqlite3_backup* mpSQLiteBackup; ///< Pointer to SQLite Database Backup Handle
};
} // namespace SQLite

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thirdparty/SQLiteCpp/include/SQLiteCpp/Column.h vendored Normal file
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/**
* @file Column.h
* @ingroup SQLiteCpp
* @brief Encapsulation of a Column in a row of the result pointed by the prepared SQLite::Statement.
*
* Copyright (c) 2012-2019 Sebastien Rombauts (sebastien.rombauts@gmail.com)
*
* Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
* or copy at http://opensource.org/licenses/MIT)
*/
#pragma once
#include <SQLiteCpp/Statement.h>
#include <SQLiteCpp/Exception.h>
#include <string>
#include <climits> // For INT_MAX
namespace SQLite
{
extern const int INTEGER; ///< SQLITE_INTEGER
extern const int FLOAT; ///< SQLITE_FLOAT
extern const int TEXT; ///< SQLITE_TEXT
extern const int BLOB; ///< SQLITE_BLOB
extern const int Null; ///< SQLITE_NULL
/**
* @brief Encapsulation of a Column in a row of the result pointed by the prepared Statement.
*
* A Column is a particular field of SQLite data in the current row of result
* of the Statement : it points to a single cell.
*
* Its value can be expressed as a text, and, when applicable, as a numeric
* (integer or floating point) or a binary blob.
*
* Thread-safety: a Column object shall not be shared by multiple threads, because :
* 1) in the SQLite "Thread Safe" mode, "SQLite can be safely used by multiple threads
* provided that no single database connection is used simultaneously in two or more threads."
* 2) the SQLite "Serialized" mode is not supported by SQLiteC++,
* because of the way it shares the underling SQLite precompiled statement
* in a custom shared pointer (See the inner class "Statement::Ptr").
*/
class Column
{
public:
/**
* @brief Encapsulation of a Column in a Row of the result.
*
* @param[in] aStmtPtr Shared pointer to the prepared SQLite Statement Object.
* @param[in] aIndex Index of the column in the row of result, starting at 0
*/
Column(Statement::Ptr& aStmtPtr, int aIndex) noexcept; // nothrow
/// Simple destructor
~Column();
// default copy constructor and assignment operator are perfectly suited :
// they copy the Statement::Ptr which in turn increments the reference counter.
/// Make clang happy by explicitly implementing the copy-constructor:
Column(const Column & aOther) :
mStmtPtr(aOther.mStmtPtr),
mIndex(aOther.mIndex)
{
}
/**
* @brief Return a pointer to the named assigned to this result column (potentially aliased)
*
* @see getOriginName() to get original column name (not aliased)
*/
const char* getName() const noexcept; // nothrow
#ifdef SQLITE_ENABLE_COLUMN_METADATA
/**
* @brief Return a pointer to the table column name that is the origin of this result column
*
* Require definition of the SQLITE_ENABLE_COLUMN_METADATA preprocessor macro :
* - when building the SQLite library itself (which is the case for the Debian libsqlite3 binary for instance),
* - and also when compiling this wrapper.
*/
const char* getOriginName() const noexcept; // nothrow
#endif
/// Return the integer value of the column.
int getInt() const noexcept; // nothrow
/// Return the 32bits unsigned integer value of the column (note that SQLite3 does not support unsigned 64bits).
unsigned getUInt() const noexcept; // nothrow
/// Return the 64bits integer value of the column (note that SQLite3 does not support unsigned 64bits).
long long getInt64() const noexcept; // nothrow
/// Return the double (64bits float) value of the column
double getDouble() const noexcept; // nothrow
/**
* @brief Return a pointer to the text value (NULL terminated string) of the column.
*
* @warning The value pointed at is only valid while the statement is valid (ie. not finalized),
* thus you must copy it before using it beyond its scope (to a std::string for instance).
*/
const char* getText(const char* apDefaultValue = "") const noexcept; // nothrow
/**
* @brief Return a pointer to the binary blob value of the column.
*
* @warning The value pointed at is only valid while the statement is valid (ie. not finalized),
* thus you must copy it before using it beyond its scope (to a std::string for instance).
*/
const void* getBlob() const noexcept; // nothrow
/**
* @brief Return a std::string for a TEXT or BLOB column.
*
* Note this correctly handles strings that contain null bytes.
*/
std::string getString() const;
/**
* @brief Return the type of the value of the column
*
* Return either SQLite::INTEGER, SQLite::FLOAT, SQLite::TEXT, SQLite::BLOB, or SQLite::Null.
*
* @warning After a type conversion (by a call to a getXxx on a Column of a Yyy type),
* the value returned by sqlite3_column_type() is undefined.
*/
int getType() const noexcept; // nothrow
/// Test if the column is an integer type value (meaningful only before any conversion)
inline bool isInteger() const noexcept // nothrow
{
return (SQLite::INTEGER == getType());
}
/// Test if the column is a floating point type value (meaningful only before any conversion)
inline bool isFloat() const noexcept // nothrow
{
return (SQLite::FLOAT == getType());
}
/// Test if the column is a text type value (meaningful only before any conversion)
inline bool isText() const noexcept // nothrow
{
return (SQLite::TEXT == getType());
}
/// Test if the column is a binary blob type value (meaningful only before any conversion)
inline bool isBlob() const noexcept // nothrow
{
return (SQLite::BLOB == getType());
}
/// Test if the column is NULL (meaningful only before any conversion)
inline bool isNull() const noexcept // nothrow
{
return (SQLite::Null == getType());
}
/**
* @brief Return the number of bytes used by the text (or blob) value of the column
*
* Return either :
* - size in bytes (not in characters) of the string returned by getText() without the '\0' terminator
* - size in bytes of the string representation of the numerical value (integer or double)
* - size in bytes of the binary blob returned by getBlob()
* - 0 for a NULL value
*/
int getBytes() const noexcept;
/// Alias returning the number of bytes used by the text (or blob) value of the column
inline int size() const noexcept
{
return getBytes ();
}
/// Inline cast operator to char
inline operator char() const
{
return static_cast<char>(getInt());
}
/// Inline cast operator to unsigned char
inline operator unsigned char() const
{
return static_cast<unsigned char>(getInt());
}
/// Inline cast operator to short
inline operator short() const
{
return static_cast<short>(getInt());
}
/// Inline cast operator to unsigned short
inline operator unsigned short() const
{
return static_cast<unsigned short>(getInt());
}
/// Inline cast operator to int
inline operator int() const
{
return getInt();
}
/// Inline cast operator to 32bits unsigned integer
inline operator unsigned int() const
{
return getUInt();
}
#if (LONG_MAX == INT_MAX) // 4 bytes "long" type means the data model is ILP32 or LLP64 (Win64 Visual C++ and MinGW)
/// Inline cast operator to 32bits long
inline operator long() const
{
return getInt();
}
/// Inline cast operator to 32bits unsigned long
inline operator unsigned long() const
{
return getUInt();
}
#else // 8 bytes "long" type means the data model is LP64 (Most Unix-like, Windows when using Cygwin; z/OS)
/// Inline cast operator to 64bits long when the data model of the system is LP64 (Linux 64 bits...)
inline operator long() const
{
return getInt64();
}
#endif
/// Inline cast operator to 64bits integer
inline operator long long() const
{
return getInt64();
}
/// Inline cast operator to double
inline operator double() const
{
return getDouble();
}
/**
* @brief Inline cast operator to char*
*
* @see getText
*/
inline operator const char*() const
{
return getText();
}
/**
* @brief Inline cast operator to void*
*
* @see getBlob
*/
inline operator const void*() const
{
return getBlob();
}
#if !defined(_MSC_VER) || _MSC_VER >= 1900
// NOTE : the following is required by GCC and Clang to cast a Column result in a std::string
// (error: conversion from ‘SQLite::Column’ to non-scalar type ‘std::string {aka std::basic_string<char>}’)
// and also required for Microsoft Visual Studio 2015 and newer
// but is not working under Microsoft Visual Studio 2010, 2012 and 2013
// (error C2440: 'initializing' : cannot convert from 'SQLite::Column' to 'std::basic_string<_Elem,_Traits,_Ax>'
// [...] constructor overload resolution was ambiguous)
// WARNING: without it, trying to access a binary blob with implicit cast to string
// ends up converting it to a C-style char*, damaging the data by truncating it to the first null character!
// (see https://github.com/SRombauts/SQLiteCpp/issues/189 Visual Studio 2013: unit test "Column.basis" failing)
/**
* @brief Inline cast operator to std::string
*
* Handles BLOB or TEXT, which may contain null bytes within
*
* @see getString
*/
inline operator std::string() const
{
return getString();
}
#endif
private:
Statement::Ptr mStmtPtr; ///< Shared Pointer to the prepared SQLite Statement Object
int mIndex; ///< Index of the column in the row of result, starting at 0
};
/**
* @brief Standard std::ostream text inserter
*
* Insert the text value of the Column object, using getText(), into the provided stream.
*
* @param[in] aStream Stream to use
* @param[in] aColumn Column object to insert into the provided stream
*
* @return Reference to the stream used
*/
std::ostream& operator<<(std::ostream& aStream, const Column& aColumn);
#if __cplusplus >= 201402L || (defined(_MSC_VER) && _MSC_VER >= 1900)
// Create an instance of T from the first N columns, see declaration in Statement.h for full details
template<typename T, int N>
T Statement::getColumns()
{
checkRow();
checkIndex(N - 1);
return getColumns<T>(std::make_integer_sequence<int, N>{});
}
// Helper function called by getColums<typename T, int N>
template<typename T, const int... Is>
T Statement::getColumns(const std::integer_sequence<int, Is...>)
{
return T{Column(mStmtPtr, Is)...};
}
#endif
} // namespace SQLite

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/**
* @file Database.h
* @ingroup SQLiteCpp
* @brief Management of a SQLite Database Connection.
*
* Copyright (c) 2012-2019 Sebastien Rombauts (sebastien.rombauts@gmail.com)
*
* Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
* or copy at http://opensource.org/licenses/MIT)
*/
#pragma once
#include <SQLiteCpp/Column.h>
#include <SQLiteCpp/Utils.h> // definition of nullptr for C++98/C++03 compilers
#include <string.h>
// Forward declarations to avoid inclusion of <sqlite3.h> in a header
struct sqlite3;
struct sqlite3_context;
#ifndef SQLITE_USE_LEGACY_STRUCT // Since SQLITE 3.19 (used by default since SQLiteCpp 2.1.0)
typedef struct sqlite3_value sqlite3_value;
#else // Before SQLite 3.19 (legacy struct forward declaration can be activated with CMake SQLITECPP_LEGACY_STRUCT var)
struct Mem;
typedef struct Mem sqlite3_value;
#endif
namespace SQLite
{
// Those public constants enable most usages of SQLiteCpp without including <sqlite3.h> in the client application.
/// The database is opened in read-only mode. If the database does not already exist, an error is returned.
extern const int OPEN_READONLY; // SQLITE_OPEN_READONLY
/// The database is opened for reading and writing if possible, or reading only if the file is write protected
/// by the operating system. In either case the database must already exist, otherwise an error is returned.
extern const int OPEN_READWRITE; // SQLITE_OPEN_READWRITE
/// With OPEN_READWRITE: The database is opened for reading and writing, and is created if it does not already exist.
extern const int OPEN_CREATE; // SQLITE_OPEN_CREATE
/// Enable URI filename interpretation, parsed according to RFC 3986 (ex. "file:data.db?mode=ro&cache=private")
extern const int OPEN_URI; // SQLITE_OPEN_URI
extern const int OK; ///< SQLITE_OK (used by inline check() bellow)
extern const char* VERSION; ///< SQLITE_VERSION string from the sqlite3.h used at compile time
extern const int VERSION_NUMBER; ///< SQLITE_VERSION_NUMBER from the sqlite3.h used at compile time
/// Return SQLite version string using runtime call to the compiled library
const char* getLibVersion() noexcept; // nothrow
/// Return SQLite version number using runtime call to the compiled library
int getLibVersionNumber() noexcept; // nothrow
/**
* @brief RAII management of a SQLite Database Connection.
*
* A Database object manage a list of all SQLite Statements associated with the
* underlying SQLite 3 database connection.
*
* Resource Acquisition Is Initialization (RAII) means that the Database Connection
* is opened in the constructor and closed in the destructor, so that there is
* no need to worry about memory management or the validity of the underlying SQLite Connection.
*
* Thread-safety: a Database object shall not be shared by multiple threads, because :
* 1) in the SQLite "Thread Safe" mode, "SQLite can be safely used by multiple threads
* provided that no single database connection is used simultaneously in two or more threads."
* 2) the SQLite "Serialized" mode is not supported by SQLiteC++,
* because of the way it shares the underling SQLite precompiled statement
* in a custom shared pointer (See the inner class "Statement::Ptr").
*/
class Database
{
friend class Statement; // Give Statement constructor access to the mpSQLite Connection Handle
public:
/**
* @brief Open the provided database UTF-8 filename.
*
* Uses sqlite3_open_v2() with readonly default flag, which is the opposite behavior
* of the old sqlite3_open() function (READWRITE+CREATE).
* This makes sense if you want to use it on a readonly filesystem
* or to prevent creation of a void file when a required file is missing.
*
* Exception is thrown in case of error, then the Database object is NOT constructed.
*
* @param[in] apFilename UTF-8 path/uri to the database file ("filename" sqlite3 parameter)
* @param[in] aFlags SQLite::OPEN_READONLY/SQLite::OPEN_READWRITE/SQLite::OPEN_CREATE...
* @param[in] aBusyTimeoutMs Amount of milliseconds to wait before returning SQLITE_BUSY (see setBusyTimeout())
* @param[in] apVfs UTF-8 name of custom VFS to use, or nullptr for sqlite3 default
*
* @throw SQLite::Exception in case of error
*/
Database(const char* apFilename,
const int aFlags = SQLite::OPEN_READONLY,
const int aBusyTimeoutMs = 0,
const char* apVfs = nullptr);
/**
* @brief Open the provided database UTF-8 filename.
*
* Uses sqlite3_open_v2() with readonly default flag, which is the opposite behavior
* of the old sqlite3_open() function (READWRITE+CREATE).
* This makes sense if you want to use it on a readonly filesystem
* or to prevent creation of a void file when a required file is missing.
*
* Exception is thrown in case of error, then the Database object is NOT constructed.
*
* @param[in] aFilename UTF-8 path/uri to the database file ("filename" sqlite3 parameter)
* @param[in] aFlags SQLite::OPEN_READONLY/SQLite::OPEN_READWRITE/SQLite::OPEN_CREATE...
* @param[in] aBusyTimeoutMs Amount of milliseconds to wait before returning SQLITE_BUSY (see setBusyTimeout())
* @param[in] aVfs UTF-8 name of custom VFS to use, or empty string for sqlite3 default
*
* @throw SQLite::Exception in case of error
*/
Database(const std::string& aFilename,
const int aFlags = SQLite::OPEN_READONLY,
const int aBusyTimeoutMs = 0,
const std::string& aVfs = "");
#if __cplusplus >= 201103L || (defined(_MSC_VER) && _MSC_VER >= 1600)
/**
* @brief Move an SQLite database connection.
*
* @param[in] aDatabase Database to move
*/
inline Database(Database&& aDatabase) noexcept :
mpSQLite(aDatabase.mpSQLite),
mFilename(std::move(aDatabase.mFilename))
{
aDatabase.mpSQLite = nullptr;
}
#endif
/**
* @brief Close the SQLite database connection.
*
* All SQLite statements must have been finalized before,
* so all Statement objects must have been unregistered.
*
* @warning assert in case of error
*/
~Database();
/**
* @brief Set a busy handler that sleeps for a specified amount of time when a table is locked.
*
* This is useful in multithreaded program to handle case where a table is locked for writing by a thread.
* Any other thread cannot access the table and will receive a SQLITE_BUSY error:
* setting a timeout will wait and retry up to the time specified before returning this SQLITE_BUSY error.
* Reading the value of timeout for current connection can be done with SQL query "PRAGMA busy_timeout;".
* Default busy timeout is 0ms.
*
* @param[in] aBusyTimeoutMs Amount of milliseconds to wait before returning SQLITE_BUSY
*
* @throw SQLite::Exception in case of error
*/
void setBusyTimeout(const int aBusyTimeoutMs);
/**
* @brief Shortcut to execute one or multiple statements without results.
*
* This is useful for any kind of statements other than the Data Query Language (DQL) "SELECT" :
* - Data Manipulation Language (DML) statements "INSERT", "UPDATE" and "DELETE"
* - Data Definition Language (DDL) statements "CREATE", "ALTER" and "DROP"
* - Data Control Language (DCL) statements "GRANT", "REVOKE", "COMMIT" and "ROLLBACK"
*
* @see Statement::exec() to handle precompiled statements (for better performances) without results
* @see Statement::executeStep() to handle "SELECT" queries with results
*
* @param[in] apQueries one or multiple UTF-8 encoded, semicolon-separate SQL statements
*
* @return number of rows modified by the *last* INSERT, UPDATE or DELETE statement (beware of multiple statements)
* @warning undefined for CREATE or DROP table: returns the value of a previous INSERT, UPDATE or DELETE statement.
*
* @throw SQLite::Exception in case of error
*/
int exec(const char* apQueries);
/**
* @brief Shortcut to execute one or multiple statements without results.
*
* This is useful for any kind of statements other than the Data Query Language (DQL) "SELECT" :
* - Data Manipulation Language (DML) statements "INSERT", "UPDATE" and "DELETE"
* - Data Definition Language (DDL) statements "CREATE", "ALTER" and "DROP"
* - Data Control Language (DCL) statements "GRANT", "REVOKE", "COMMIT" and "ROLLBACK"
*
* @see Statement::exec() to handle precompiled statements (for better performances) without results
* @see Statement::executeStep() to handle "SELECT" queries with results
*
* @param[in] aQueries one or multiple UTF-8 encoded, semicolon-separate SQL statements
*
* @return number of rows modified by the *last* INSERT, UPDATE or DELETE statement (beware of multiple statements)
* @warning undefined for CREATE or DROP table: returns the value of a previous INSERT, UPDATE or DELETE statement.
*
* @throw SQLite::Exception in case of error
*/
inline int exec(const std::string& aQueries)
{
return exec(aQueries.c_str());
}
/**
* @brief Shortcut to execute a one step query and fetch the first column of the result.
*
* This is a shortcut to execute a simple statement with a single result.
* This should be used only for non reusable queries (else you should use a Statement with bind()).
* This should be used only for queries with expected results (else an exception is fired).
*
* @warning WARNING: Be very careful with this dangerous method: you have to
* make a COPY OF THE result, else it will be destroy before the next line
* (when the underlying temporary Statement and Column objects are destroyed)
*
* @see also Statement class for handling queries with multiple results
*
* @param[in] apQuery an UTF-8 encoded SQL query
*
* @return a temporary Column object with the first column of result.
*
* @throw SQLite::Exception in case of error
*/
Column execAndGet(const char* apQuery);
/**
* @brief Shortcut to execute a one step query and fetch the first column of the result.
*
* This is a shortcut to execute a simple statement with a single result.
* This should be used only for non reusable queries (else you should use a Statement with bind()).
* This should be used only for queries with expected results (else an exception is fired).
*
* @warning WARNING: Be very careful with this dangerous method: you have to
* make a COPY OF THE result, else it will be destroy before the next line
* (when the underlying temporary Statement and Column objects are destroyed)
*
* @see also Statement class for handling queries with multiple results
*
* @param[in] aQuery an UTF-8 encoded SQL query
*
* @return a temporary Column object with the first column of result.
*
* @throw SQLite::Exception in case of error
*/
inline Column execAndGet(const std::string& aQuery)
{
return execAndGet(aQuery.c_str());
}
/**
* @brief Shortcut to test if a table exists.
*
* Table names are case sensitive.
*
* @param[in] apTableName an UTF-8 encoded case sensitive Table name
*
* @return true if the table exists.
*
* @throw SQLite::Exception in case of error
*/
bool tableExists(const char* apTableName);
/**
* @brief Shortcut to test if a table exists.
*
* Table names are case sensitive.
*
* @param[in] aTableName an UTF-8 encoded case sensitive Table name
*
* @return true if the table exists.
*
* @throw SQLite::Exception in case of error
*/
inline bool tableExists(const std::string& aTableName)
{
return tableExists(aTableName.c_str());
}
/**
* @brief Get the rowid of the most recent successful INSERT into the database from the current connection.
*
* Each entry in an SQLite table always has a unique 64-bit signed integer key called the rowid.
* If the table has a column of type INTEGER PRIMARY KEY, then it is an alias for the rowid.
*
* @return Rowid of the most recent successful INSERT into the database, or 0 if there was none.
*/
long long getLastInsertRowid() const noexcept; // nothrow
/// Get total number of rows modified by all INSERT, UPDATE or DELETE statement since connection (not DROP table).
int getTotalChanges() const noexcept; // nothrow
/// Return the numeric result code for the most recent failed API call (if any).
int getErrorCode() const noexcept; // nothrow
/// Return the extended numeric result code for the most recent failed API call (if any).
int getExtendedErrorCode() const noexcept; // nothrow
/// Return UTF-8 encoded English language explanation of the most recent failed API call (if any).
const char* getErrorMsg() const noexcept; // nothrow
/// Return the filename used to open the database.
const std::string& getFilename() const noexcept // nothrow
{
return mFilename;
}
/**
* @brief Return raw pointer to SQLite Database Connection Handle.
*
* This is often needed to mix this wrapper with other libraries or for advance usage not supported by SQLiteCpp.
*/
inline sqlite3* getHandle() const noexcept // nothrow
{
return mpSQLite;
}
/**
* @brief Create or redefine a SQL function or aggregate in the sqlite database.
*
* This is the equivalent of the sqlite3_create_function_v2 command.
* @see http://www.sqlite.org/c3ref/create_function.html
*
* @note UTF-8 text encoding assumed.
*
* @param[in] apFuncName Name of the SQL function to be created or redefined
* @param[in] aNbArg Number of arguments in the function
* @param[in] abDeterministic Optimize for deterministic functions (most are). A random number generator is not.
* @param[in] apApp Arbitrary pointer of user data, accessible with sqlite3_user_data().
* @param[in] apFunc Pointer to a C-function to implement a scalar SQL function (apStep & apFinal nullptr)
* @param[in] apStep Pointer to a C-function to implement an aggregate SQL function (apFunc nullptr)
* @param[in] apFinal Pointer to a C-function to implement an aggregate SQL function (apFunc nullptr)
* @param[in] apDestroy If not nullptr, then it is the destructor for the application data pointer.
*
* @throw SQLite::Exception in case of error
*/
void createFunction(const char* apFuncName,
int aNbArg,
bool abDeterministic,
void* apApp,
void (*apFunc)(sqlite3_context *, int, sqlite3_value **),
void (*apStep)(sqlite3_context *, int, sqlite3_value **),
void (*apFinal)(sqlite3_context *), // NOLINT(readability/casting)
void (*apDestroy)(void *));
/**
* @brief Create or redefine a SQL function or aggregate in the sqlite database.
*
* This is the equivalent of the sqlite3_create_function_v2 command.
* @see http://www.sqlite.org/c3ref/create_function.html
*
* @note UTF-8 text encoding assumed.
*
* @param[in] aFuncName Name of the SQL function to be created or redefined
* @param[in] aNbArg Number of arguments in the function
* @param[in] abDeterministic Optimize for deterministic functions (most are). A random number generator is not.
* @param[in] apApp Arbitrary pointer of user data, accessible with sqlite3_user_data().
* @param[in] apFunc Pointer to a C-function to implement a scalar SQL function (apStep & apFinal nullptr)
* @param[in] apStep Pointer to a C-function to implement an aggregate SQL function (apFunc nullptr)
* @param[in] apFinal Pointer to a C-function to implement an aggregate SQL function (apFunc nullptr)
* @param[in] apDestroy If not nullptr, then it is the destructor for the application data pointer.
*
* @throw SQLite::Exception in case of error
*/
inline void createFunction(const std::string& aFuncName,
int aNbArg,
bool abDeterministic,
void* apApp,
void (*apFunc)(sqlite3_context *, int, sqlite3_value **),
void (*apStep)(sqlite3_context *, int, sqlite3_value **),
void (*apFinal)(sqlite3_context *), // NOLINT(readability/casting)
void (*apDestroy)(void *))
{
return createFunction(aFuncName.c_str(), aNbArg, abDeterministic,
apApp, apFunc, apStep, apFinal, apDestroy);
}
/**
* @brief Load a module into the current sqlite database instance.
*
* This is the equivalent of the sqlite3_load_extension call, but additionally enables
* module loading support prior to loading the requested module.
*
* @see http://www.sqlite.org/c3ref/load_extension.html
*
* @note UTF-8 text encoding assumed.
*
* @param[in] apExtensionName Name of the shared library containing extension
* @param[in] apEntryPointName Name of the entry point (nullptr to let sqlite work it out)
*
* @throw SQLite::Exception in case of error
*/
void loadExtension(const char* apExtensionName, const char* apEntryPointName);
/**
* @brief Set the key for the current sqlite database instance.
*
* This is the equivalent of the sqlite3_key call and should thus be called
* directly after opening the database.
* Open encrypted database -> call db.key("secret") -> database ready
*
* @param[in] aKey Key to decode/encode the database
*
* @throw SQLite::Exception in case of error
*/
void key(const std::string& aKey) const;
/**
* @brief Reset the key for the current sqlite database instance.
*
* This is the equivalent of the sqlite3_rekey call and should thus be called
* after the database has been opened with a valid key. To decrypt a
* database, call this method with an empty string.
* Open normal database -> call db.rekey("secret") -> encrypted database, database ready
* Open encrypted database -> call db.key("secret") -> call db.rekey("newsecret") -> change key, database ready
* Open encrypted database -> call db.key("secret") -> call db.rekey("") -> decrypted database, database ready
*
* @param[in] aNewKey New key to encode the database
*
* @throw SQLite::Exception in case of error
*/
void rekey(const std::string& aNewKey) const;
/**
* @brief Test if a file contains an unencrypted database.
*
* This is a simple test that reads the first bytes of a database file and
* compares them to the standard header for unencrypted databases. If the
* header does not match the standard string, we assume that we have an
* encrypted file.
*
* @param[in] aFilename path/uri to a file
*
* @return true if the database has the standard header.
*
* @throw SQLite::Exception in case of error
*/
static bool isUnencrypted(const std::string& aFilename);
private:
/// @{ Database must be non-copyable
Database(const Database&);
Database& operator=(const Database&);
/// @}
/**
* @brief Check if aRet equal SQLITE_OK, else throw a SQLite::Exception with the SQLite error message
*/
inline void check(const int aRet) const
{
if (SQLite::OK != aRet)
{
throw SQLite::Exception(mpSQLite, aRet);
}
}
private:
sqlite3* mpSQLite; ///< Pointer to SQLite Database Connection Handle
std::string mFilename; ///< UTF-8 filename used to open the database
};
} // namespace SQLite

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/**
* @file Exception.h
* @ingroup SQLiteCpp
* @brief Encapsulation of the error message from SQLite3 on a std::runtime_error.
*
* Copyright (c) 2012-2019 Sebastien Rombauts (sebastien.rombauts@gmail.com)
*
* Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
* or copy at http://opensource.org/licenses/MIT)
*/
#pragma once
#include <stdexcept>
#include <string>
// Forward declaration to avoid inclusion of <sqlite3.h> in a header
struct sqlite3;
/// Compatibility with non-clang compilers.
#ifndef __has_feature
#define __has_feature(x) 0
#endif
// Detect whether the compiler supports C++11 noexcept exception specifications.
#if ( defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 7) || (__GNUC__ > 4)) \
&& defined(__GXX_EXPERIMENTAL_CXX0X__))
// GCC 4.7 and following have noexcept
#elif defined(__clang__) && __has_feature(cxx_noexcept)
// Clang 3.0 and above have noexcept
#elif defined(_MSC_VER) && _MSC_VER > 1800
// Visual Studio 2015 and above have noexcept
#else
// Visual Studio 2013 does not support noexcept, and "throw()" is deprecated by C++11
#define noexcept
#endif
namespace SQLite
{
/**
* @brief Encapsulation of the error message from SQLite3, based on std::runtime_error.
*/
class Exception : public std::runtime_error
{
public:
/**
* @brief Encapsulation of the error message from SQLite3, based on std::runtime_error.
*
* @param[in] aErrorMessage The string message describing the SQLite error
*/
explicit Exception(const char* aErrorMessage);
explicit Exception(const std::string& aErrorMessage);
/**
* @brief Encapsulation of the error message from SQLite3, based on std::runtime_error.
*
* @param[in] aErrorMessage The string message describing the SQLite error
* @param[in] ret Return value from function call that failed.
*/
Exception(const char* aErrorMessage, int ret);
Exception(const std::string& aErrorMessage, int ret);
/**
* @brief Encapsulation of the error message from SQLite3, based on std::runtime_error.
*
* @param[in] apSQLite The SQLite object, to obtain detailed error messages from.
*/
explicit Exception(sqlite3* apSQLite);
/**
* @brief Encapsulation of the error message from SQLite3, based on std::runtime_error.
*
* @param[in] apSQLite The SQLite object, to obtain detailed error messages from.
* @param[in] ret Return value from function call that failed.
*/
Exception(sqlite3* apSQLite, int ret);
/// Return the result code (if any, otherwise -1).
inline int getErrorCode() const noexcept // nothrow
{
return mErrcode;
}
/// Return the extended numeric result code (if any, otherwise -1).
inline int getExtendedErrorCode() const noexcept // nothrow
{
return mExtendedErrcode;
}
/// Return a string, solely based on the error code
const char* getErrorStr() const noexcept; // nothrow
private:
int mErrcode; ///< Error code value
int mExtendedErrcode; ///< Detailed error code if any
};
} // namespace SQLite

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/**
* @file ExecuteMany.h
* @ingroup SQLiteCpp
* @brief Convenience function to execute a Statement with multiple Parameter sets
*
* Copyright (c) 2019 Maximilian Bachmann (github maxbachmann)
* Copyright (c) 2019 Sebastien Rombauts (sebastien.rombauts@gmail.com)
*
* Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
* or copy at http://opensource.org/licenses/MIT)
*/
#pragma once
#if (__cplusplus >= 201402L) || ( defined(_MSC_VER) && (_MSC_VER >= 1900) ) // c++14: Visual Studio 2015
#include <SQLiteCpp/Statement.h>
#include <SQLiteCpp/VariadicBind.h>
/// @cond
#include <tuple>
#include <utility>
#include <initializer_list>
namespace SQLite
{
/// @endcond
/**
* \brief Convenience function to execute a Statement with multiple Parameter sets once for each parameter set given.
*
*
* This feature requires a c++14 capable compiler.
*
* \code{.cpp}
* execute_many(db, "INSERT INTO test VALUES (?, ?)",
* std::make_tuple(1, "one"),
* std::make_tuple(2, "two"),
* std::make_tuple(3, "three")
* );
* \endcode
* @param aDatabase Database to use
* @param apQuery Query to use with all parameter sets
* @param aArg first tuple with parameters
* @param aParams the following tuples with parameters
*/
template <typename Arg, typename... Types>
void execute_many(Database& aDatabase, const char* apQuery, Arg&& aArg, Types&&... aParams)
{
SQLite::Statement query(aDatabase, apQuery);
bind_exec(query, std::forward<decltype(aArg)>(aArg));
(void)std::initializer_list<int>
{
((void)reset_bind_exec(query, std::forward<decltype(aParams)>(aParams)), 0)...
};
}
/**
* \brief Convenience function to reset a statement and call bind_exec to
* bind new values to the statement and execute it
*
* This feature requires a c++14 capable compiler.
*
* @param apQuery Query to use
* @param aTuple Tuple to bind
*/
template <typename ... Types>
void reset_bind_exec(SQLite::Statement& apQuery, std::tuple<Types...>&& aTuple)
{
apQuery.reset();
bind_exec(apQuery, std::forward<decltype(aTuple)>(aTuple));
}
/**
* \brief Convenience function to bind values a the statement and execute it
*
* This feature requires a c++14 capable compiler.
*
* @param apQuery Query to use
* @param aTuple Tuple to bind
*/
template <typename ... Types>
void bind_exec(SQLite::Statement& apQuery, std::tuple<Types...>&& aTuple)
{
bind(apQuery, std::forward<decltype(aTuple)>(aTuple));
while (apQuery.executeStep()) {}
}
} // namespace SQLite
#endif // c++14

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/**
* @file SQLiteCpp.h
* @ingroup SQLiteCpp
* @brief SQLiteC++ is a smart and simple C++ SQLite3 wrapper. This file is only "easy include" for other files.
*
* Include this main header file in your project to gain access to all functionality provided by the wrapper.
*
* Copyright (c) 2012-2019 Sebastien Rombauts (sebastien.rombauts@gmail.com)
*
* Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
* or copy at http://opensource.org/licenses/MIT)
*/
/**
* @defgroup SQLiteCpp SQLiteC++
* @brief SQLiteC++ is a smart and simple C++ SQLite3 wrapper. This file is only "easy include" for other files.
*/
#pragma once
// Include useful headers of SQLiteC++
#include <SQLiteCpp/Assertion.h>
#include <SQLiteCpp/Exception.h>
#include <SQLiteCpp/Database.h>
#include <SQLiteCpp/Statement.h>
#include <SQLiteCpp/Column.h>
#include <SQLiteCpp/Transaction.h>
/**
* @brief Version numbers for SQLiteC++ are provided in the same way as sqlite3.h
*
* The [SQLITECPP_VERSION] C preprocessor macro in the SQLiteC++.h header
* evaluates to a string literal that is the SQLite version in the
* format "X.Y.Z" where X is the major version number
* and Y is the minor version number and Z is the release number.
*
* The [SQLITECPP_VERSION_NUMBER] C preprocessor macro resolves to an integer
* with the value (X*1000000 + Y*1000 + Z) where X, Y, and Z are the same
* numbers used in [SQLITECPP_VERSION].
*/
#define SQLITECPP_VERSION "2.03.00" // 2.3.0
#define SQLITECPP_VERSION_NUMBER 2003000 // 2.3.0

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/**
* @file Statement.h
* @ingroup SQLiteCpp
* @brief A prepared SQLite Statement is a compiled SQL query ready to be executed, pointing to a row of result.
*
* Copyright (c) 2012-2019 Sebastien Rombauts (sebastien.rombauts@gmail.com)
*
* Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
* or copy at http://opensource.org/licenses/MIT)
*/
#pragma once
#include <SQLiteCpp/Exception.h>
#include <string>
#include <map>
#include <climits> // For INT_MAX
// Forward declarations to avoid inclusion of <sqlite3.h> in a header
struct sqlite3;
struct sqlite3_stmt;
namespace SQLite
{
// Forward declaration
class Database;
class Column;
extern const int OK; ///< SQLITE_OK
/**
* @brief RAII encapsulation of a prepared SQLite Statement.
*
* A Statement is a compiled SQL query ready to be executed step by step
* to provide results one row at a time.
*
* Resource Acquisition Is Initialization (RAII) means that the Statement
* is compiled in the constructor and finalized in the destructor, so that there is
* no need to worry about memory management or the validity of the underlying SQLite Statement.
*
* Thread-safety: a Statement object shall not be shared by multiple threads, because :
* 1) in the SQLite "Thread Safe" mode, "SQLite can be safely used by multiple threads
* provided that no single database connection is used simultaneously in two or more threads."
* 2) the SQLite "Serialized" mode is not supported by SQLiteC++,
* because of the way it shares the underling SQLite precompiled statement
* in a custom shared pointer (See the inner class "Statement::Ptr").
*/
class Statement
{
friend class Column; // For access to Statement::Ptr inner class
public:
/**
* @brief Compile and register the SQL query for the provided SQLite Database Connection
*
* @param[in] aDatabase the SQLite Database Connection
* @param[in] apQuery an UTF-8 encoded query string
*
* Exception is thrown in case of error, then the Statement object is NOT constructed.
*/
Statement(Database& aDatabase, const char* apQuery);
/**
* @brief Compile and register the SQL query for the provided SQLite Database Connection
*
* @param[in] aDatabase the SQLite Database Connection
* @param[in] aQuery an UTF-8 encoded query string
*
* Exception is thrown in case of error, then the Statement object is NOT constructed.
*/
Statement(Database& aDatabase, const std::string& aQuery);
#if __cplusplus >= 201103L || (defined(_MSC_VER) && _MSC_VER >= 1600)
/**
* @brief Move an SQLite statement.
*
* @param[in] aStatement Statement to move
*/
Statement(Statement&& aStatement) noexcept;
#endif
/// Finalize and unregister the SQL query from the SQLite Database Connection.
~Statement();
/// Reset the statement to make it ready for a new execution. Throws an exception on error.
void reset();
/// Reset the statement. Returns the sqlite result code instead of throwing an exception on error.
int tryReset() noexcept;
/**
* @brief Clears away all the bindings of a prepared statement.
*
* Contrary to the intuition of many, reset() does not reset the bindings on a prepared statement.
* Use this routine to reset all parameters to NULL.
*/
void clearBindings(); // throw(SQLite::Exception)
////////////////////////////////////////////////////////////////////////////
// Bind a value to a parameter of the SQL statement,
// in the form "?" (unnamed), "?NNN", ":VVV", "@VVV" or "$VVV".
//
// Can use the parameter index, starting from "1", to the higher NNN value,
// or the complete parameter name "?NNN", ":VVV", "@VVV" or "$VVV"
// (prefixed with the corresponding sign "?", ":", "@" or "$")
//
// Note that for text and blob values, the SQLITE_TRANSIENT flag is used,
// which tell the sqlite library to make its own copy of the data before the bind() call returns.
// This choice is done to prevent any common misuses, like passing a pointer to a
// dynamic allocated and temporary variable (a std::string for instance).
// This is under-optimized for static data (a static text define in code)
// as well as for dynamic allocated buffer which could be transfer to sqlite
// instead of being copied.
// => if you know what you are doing, use bindNoCopy() instead of bind()
/**
* @brief Bind an int value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
void bind(const int aIndex, const int aValue);
/**
* @brief Bind a 32bits unsigned int value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
void bind(const int aIndex, const unsigned aValue);
#if (LONG_MAX == INT_MAX) // 4 bytes "long" type means the data model is ILP32 or LLP64 (Win64 Visual C++ and MinGW)
/**
* @brief Bind a 32bits long value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
void bind(const int aIndex, const long aValue)
{
bind(aIndex, static_cast<int>(aValue));
}
#else // 8 bytes "long" type means the data model is LP64 (Most Unix-like, Windows when using Cygwin; z/OS)
/**
* @brief Bind a 64bits long value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
void bind(const int aIndex, const long aValue)
{
bind(aIndex, static_cast<long long>(aValue));
}
#endif
/**
* @brief Bind a 64bits int value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
void bind(const int aIndex, const long long aValue);
/**
* @brief Bind a double (64bits float) value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
void bind(const int aIndex, const double aValue);
/**
* @brief Bind a string value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* @note Uses the SQLITE_TRANSIENT flag, making a copy of the data, for SQLite internal use
*/
void bind(const int aIndex, const std::string& aValue);
/**
* @brief Bind a text value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* @note Uses the SQLITE_TRANSIENT flag, making a copy of the data, for SQLite internal use
*/
void bind(const int aIndex, const char* apValue);
/**
* @brief Bind a binary blob value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* @note Uses the SQLITE_TRANSIENT flag, making a copy of the data, for SQLite internal use
*/
void bind(const int aIndex, const void* apValue, const int aSize);
/**
* @brief Bind a string value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1).
*
* The string can contain null characters as it is binded using its size.
*
* @warning Uses the SQLITE_STATIC flag, avoiding a copy of the data. The string must remains unchanged while executing the statement.
*/
void bindNoCopy(const int aIndex, const std::string& aValue);
/**
* @brief Bind a text value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* Main usage is with null-terminated literal text (aka in code static strings)
*
* @warning Uses the SQLITE_STATIC flag, avoiding a copy of the data. The string must remains unchanged while executing the statement.
*/
void bindNoCopy(const int aIndex, const char* apValue);
/**
* @brief Bind a binary blob value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* @warning Uses the SQLITE_STATIC flag, avoiding a copy of the data. The string must remains unchanged while executing the statement.
*/
void bindNoCopy(const int aIndex, const void* apValue, const int aSize);
/**
* @brief Bind a NULL value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* @see clearBindings() to set all bound parameters to NULL.
*/
void bind(const int aIndex);
/**
* @brief Bind an int value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
void bind(const char* apName, const int aValue);
/**
* @brief Bind a 32bits unsigned int value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
void bind(const char* apName, const unsigned aValue);
#if (LONG_MAX == INT_MAX) // 4 bytes "long" type means the data model is ILP32 or LLP64 (Win64 Visual C++ and MinGW)
/**
* @brief Bind a 32bits long value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
void bind(const char* apName, const long aValue)
{
bind(apName, static_cast<int>(aValue));
}
#else // 8 bytes "long" type means the data model is LP64 (Most Unix-like, Windows when using Cygwin; z/OS)
/**
* @brief Bind a 64bits long value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
void bind(const char* apName, const long aValue)
{
bind(apName, static_cast<long long>(aValue));
}
#endif
/**
* @brief Bind a 64bits int value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
void bind(const char* apName, const long long aValue);
/**
* @brief Bind a double (64bits float) value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
void bind(const char* apName, const double aValue);
/**
* @brief Bind a string value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* @note Uses the SQLITE_TRANSIENT flag, making a copy of the data, for SQLite internal use
*/
void bind(const char* apName, const std::string& aValue);
/**
* @brief Bind a text value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* @note Uses the SQLITE_TRANSIENT flag, making a copy of the data, for SQLite internal use
*/
void bind(const char* apName, const char* apValue);
/**
* @brief Bind a binary blob value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* @note Uses the SQLITE_TRANSIENT flag, making a copy of the data, for SQLite internal use
*/
void bind(const char* apName, const void* apValue, const int aSize);
/**
* @brief Bind a string value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* The string can contain null characters as it is binded using its size.
*
* @warning Uses the SQLITE_STATIC flag, avoiding a copy of the data. The string must remains unchanged while executing the statement.
*/
void bindNoCopy(const char* apName, const std::string& aValue);
/**
* @brief Bind a text value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* Main usage is with null-terminated literal text (aka in code static strings)
*
* @warning Uses the SQLITE_STATIC flag, avoiding a copy of the data. The string must remains unchanged while executing the statement.
*/
void bindNoCopy(const char* apName, const char* apValue);
/**
* @brief Bind a binary blob value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* @warning Uses the SQLITE_STATIC flag, avoiding a copy of the data. The string must remains unchanged while executing the statement.
*/
void bindNoCopy(const char* apName, const void* apValue, const int aSize);
/**
* @brief Bind a NULL value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* @see clearBindings() to set all bound parameters to NULL.
*/
void bind(const char* apName); // bind NULL value
/**
* @brief Bind an int value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
inline void bind(const std::string& aName, const int aValue)
{
bind(aName.c_str(), aValue);
}
/**
* @brief Bind a 32bits unsigned int value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
inline void bind(const std::string& aName, const unsigned aValue)
{
bind(aName.c_str(), aValue);
}
#if (LONG_MAX == INT_MAX) // 4 bytes "long" type means the data model is ILP32 or LLP64 (Win64 Visual C++ and MinGW)
/**
* @brief Bind a 32bits long value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
void bind(const std::string& aName, const long aValue)
{
bind(aName.c_str(), static_cast<int>(aValue));
}
#else // 8 bytes "long" type means the data model is LP64 (Most Unix-like, Windows when using Cygwin; z/OS)
/**
* @brief Bind a 64bits long value to a parameter "?", "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
void bind(const std::string& aName, const long aValue)
{
bind(aName.c_str(), static_cast<long long>(aValue));
}
#endif
/**
* @brief Bind a 64bits int value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
inline void bind(const std::string& aName, const long long aValue)
{
bind(aName.c_str(), aValue);
}
/**
* @brief Bind a double (64bits float) value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*/
inline void bind(const std::string& aName, const double aValue)
{
bind(aName.c_str(), aValue);
}
/**
* @brief Bind a string value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* @note Uses the SQLITE_TRANSIENT flag, making a copy of the data, for SQLite internal use
*/
inline void bind(const std::string& aName, const std::string& aValue)
{
bind(aName.c_str(), aValue);
}
/**
* @brief Bind a text value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* @note Uses the SQLITE_TRANSIENT flag, making a copy of the data, for SQLite internal use
*/
inline void bind(const std::string& aName, const char* apValue)
{
bind(aName.c_str(), apValue);
}
/**
* @brief Bind a binary blob value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* @note Uses the SQLITE_TRANSIENT flag, making a copy of the data, for SQLite internal use
*/
inline void bind(const std::string& aName, const void* apValue, const int aSize)
{
bind(aName.c_str(), apValue, aSize);
}
/**
* @brief Bind a string value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* The string can contain null characters as it is binded using its size.
*
* @warning Uses the SQLITE_STATIC flag, avoiding a copy of the data. The string must remains unchanged while executing the statement.
*/
inline void bindNoCopy(const std::string& aName, const std::string& aValue)
{
bindNoCopy(aName.c_str(), aValue);
}
/**
* @brief Bind a text value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* Main usage is with null-terminated literal text (aka in code static strings)
*
* @warning Uses the SQLITE_STATIC flag, avoiding a copy of the data. The string must remains unchanged while executing the statement.
*/
inline void bindNoCopy(const std::string& aName, const char* apValue)
{
bindNoCopy(aName.c_str(), apValue);
}
/**
* @brief Bind a binary blob value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* @warning Uses the SQLITE_STATIC flag, avoiding a copy of the data. The string must remains unchanged while executing the statement.
*/
inline void bindNoCopy(const std::string& aName, const void* apValue, const int aSize)
{
bindNoCopy(aName.c_str(), apValue, aSize);
}
/**
* @brief Bind a NULL value to a named parameter "?NNN", ":VVV", "@VVV" or "$VVV" in the SQL prepared statement (aIndex >= 1)
*
* @see clearBindings() to set all bound parameters to NULL.
*/
inline void bind(const std::string& aName) // bind NULL value
{
bind(aName.c_str());
}
////////////////////////////////////////////////////////////////////////////
/**
* @brief Execute a step of the prepared query to fetch one row of results.
*
* While true is returned, a row of results is available, and can be accessed
* thru the getColumn() method
*
* @see exec() execute a one-step prepared statement with no expected result
* @see tryExecuteStep() try to execute a step of the prepared query to fetch one row of results, returning the sqlite result code.
* @see Database::exec() is a shortcut to execute one or multiple statements without results
*
* @return - true (SQLITE_ROW) if there is another row ready : you can call getColumn(N) to get it
* then you have to call executeStep() again to fetch more rows until the query is finished
* - false (SQLITE_DONE) if the query has finished executing : there is no (more) row of result
* (case of a query with no result, or after N rows fetched successfully)
*
* @throw SQLite::Exception in case of error
*/
bool executeStep();
/**
* @brief Try to execute a step of the prepared query to fetch one row of results, returning the sqlite result code.
*
*
*
* @see exec() execute a one-step prepared statement with no expected result
* @see executeStep() execute a step of the prepared query to fetch one row of results
* @see Database::exec() is a shortcut to execute one or multiple statements without results
*
* @return the sqlite result code.
*/
int tryExecuteStep() noexcept;
/**
* @brief Execute a one-step query with no expected result.
*
* This method is useful for any kind of statements other than the Data Query Language (DQL) "SELECT" :
* - Data Definition Language (DDL) statements "CREATE", "ALTER" and "DROP"
* - Data Manipulation Language (DML) statements "INSERT", "UPDATE" and "DELETE"
* - Data Control Language (DCL) statements "GRANT", "REVOKE", "COMMIT" and "ROLLBACK"
*
* It is similar to Database::exec(), but using a precompiled statement, it adds :
* - the ability to bind() arguments to it (best way to insert data),
* - reusing it allows for better performances (efficient for multiple insertion).
*
* @see executeStep() execute a step of the prepared query to fetch one row of results
* @see tryExecuteStep() try to execute a step of the prepared query to fetch one row of results, returning the sqlite result code.
* @see Database::exec() is a shortcut to execute one or multiple statements without results
*
* @return number of row modified by this SQL statement (INSERT, UPDATE or DELETE)
*
* @throw SQLite::Exception in case of error, or if row of results are returned !
*/
int exec();
////////////////////////////////////////////////////////////////////////////
/**
* @brief Return a copy of the column data specified by its index
*
* Can be used to access the data of the current row of result when applicable,
* while the executeStep() method returns true.
*
* Throw an exception if there is no row to return a Column from:
* - if provided index is out of bound
* - before any executeStep() call
* - after the last executeStep() returned false
* - after a reset() call
*
* Throw an exception if the specified index is out of the [0, getColumnCount()) range.
*
* @param[in] aIndex Index of the column, starting at 0
*
* @note This method is not const, reflecting the fact that the returned Column object will
* share the ownership of the underlying sqlite3_stmt.
*
* @warning The resulting Column object must not be memorized "as-is".
* Is is only a wrapper around the current result row, so it is only valid
* while the row from the Statement remains valid, that is only until next executeStep() call.
* Thus, you should instead extract immediately its data (getInt(), getText()...)
* and use or copy this data for any later usage.
*/
Column getColumn(const int aIndex);
/**
* @brief Return a copy of the column data specified by its column name (less efficient than using an index)
*
* Can be used to access the data of the current row of result when applicable,
* while the executeStep() method returns true.
*
* Throw an exception if there is no row to return a Column from :
* - if provided name is not one of the aliased column names
* - before any executeStep() call
* - after the last executeStep() returned false
* - after a reset() call
*
* Throw an exception if the specified name is not an on of the aliased name of the columns in the result.
*
* @param[in] apName Aliased name of the column, that is, the named specified in the query (not the original name)
*
* @note Uses a map of column names to indexes, build on first call.
*
* @note This method is not const, reflecting the fact that the returned Column object will
* share the ownership of the underlying sqlite3_stmt.
*
* @warning The resulting Column object must not be memorized "as-is".
* Is is only a wrapper around the current result row, so it is only valid
* while the row from the Statement remains valid, that is only until next executeStep() call.
* Thus, you should instead extract immediately its data (getInt(), getText()...)
* and use or copy this data for any later usage.
*
* Throw an exception if the specified name is not one of the aliased name of the columns in the result.
*/
Column getColumn(const char* apName);
#if __cplusplus >= 201402L || (defined(_MSC_VER) && _MSC_VER >= 1900)
/**
* @brief Return an instance of T constructed from copies of the first N columns
*
* Can be used to access the data of the current row of result when applicable,
* while the executeStep() method returns true.
*
* Throw an exception if there is no row to return a Column from:
* - if provided column count is out of bound
* - before any executeStep() call
* - after the last executeStep() returned false
* - after a reset() call
*
* Throw an exception if the specified column count is out of the [0, getColumnCount()) range.
*
* @tparam T Object type to construct
* @tparam N Number of columns
*
* @note Requires std=C++14
*/
template<typename T, int N>
T getColumns();
private:
/**
* @brief Helper function used by getColumns<typename T, int N> to expand an integer_sequence used to generate
* the required Column objects
*/
template<typename T, const int... Is>
T getColumns(const std::integer_sequence<int, Is...>);
public:
#endif
/**
* @brief Test if the column value is NULL
*
* @param[in] aIndex Index of the column, starting at 0
*
* @return true if the column value is NULL
*
* Throw an exception if the specified index is out of the [0, getColumnCount()) range.
*/
bool isColumnNull(const int aIndex) const;
/**
* @brief Test if the column value is NULL
*
* @param[in] apName Aliased name of the column, that is, the named specified in the query (not the original name)
*
* @return true if the column value is NULL
*
* Throw an exception if the specified name is not one of the aliased name of the columns in the result.
*/
bool isColumnNull(const char* apName) const;
/**
* @brief Return a pointer to the named assigned to the specified result column (potentially aliased)
*
* @param[in] aIndex Index of the column in the range [0, getColumnCount()).
*
* @see getColumnOriginName() to get original column name (not aliased)
*
* Throw an exception if the specified index is out of the [0, getColumnCount()) range.
*/
const char* getColumnName(const int aIndex) const;
#ifdef SQLITE_ENABLE_COLUMN_METADATA
/**
* @brief Return a pointer to the table column name that is the origin of the specified result column
*
* Require definition of the SQLITE_ENABLE_COLUMN_METADATA preprocessor macro :
* - when building the SQLite library itself (which is the case for the Debian libsqlite3 binary for instance),
* - and also when compiling this wrapper.
*
* Throw an exception if the specified index is out of the [0, getColumnCount()) range.
*/
const char* getColumnOriginName(const int aIndex) const;
#endif
/**
* @brief Return the index of the specified (potentially aliased) column name
*
* @param[in] apName Aliased name of the column, that is, the named specified in the query (not the original name)
*
* @note Uses a map of column names to indexes, build on first call.
*
* Throw an exception if the specified name is not known.
*/
int getColumnIndex(const char* apName) const;
////////////////////////////////////////////////////////////////////////////
/// Return the UTF-8 SQL Query.
inline const std::string& getQuery() const
{
return mQuery;
}
// Return a UTF-8 string containing the SQL text of prepared statement with bound parameters expanded.
std::string getExpandedSQL();
/// Return the number of columns in the result set returned by the prepared statement
inline int getColumnCount() const
{
return mColumnCount;
}
/// true when a row has been fetched with executeStep()
inline bool hasRow() const
{
return mbHasRow;
}
/// @deprecated, use #hasRow()
inline bool isOk() const
{
return hasRow();
}
/// true when the last executeStep() had no more row to fetch
inline bool isDone() const
{
return mbDone;
}
/// Return the number of bind parameters in the statement
int getBindParameterCount() const noexcept;
/// Return the numeric result code for the most recent failed API call (if any).
int getErrorCode() const noexcept; // nothrow
/// Return the extended numeric result code for the most recent failed API call (if any).
int getExtendedErrorCode() const noexcept; // nothrow
/// Return UTF-8 encoded English language explanation of the most recent failed API call (if any).
const char* getErrorMsg() const noexcept; // nothrow
private:
/**
* @brief Shared pointer to the sqlite3_stmt SQLite Statement Object.
*
* Manage the finalization of the sqlite3_stmt with a reference counter.
*
* This is a internal class, not part of the API (hence full documentation is in the cpp).
*/
class Ptr
{
public:
// Prepare the statement and initialize its reference counter
Ptr(sqlite3* apSQLite, std::string& aQuery);
// Copy constructor increments the ref counter
Ptr(const Ptr& aPtr);
#if __cplusplus >= 201103L || (defined(_MSC_VER) && _MSC_VER >= 1600)
// Move constructor
Ptr(Ptr&& aPtr);
#endif
// Decrement the ref counter and finalize the sqlite3_stmt when it reaches 0
~Ptr();
/// Inline cast operator returning the pointer to SQLite Database Connection Handle
inline operator sqlite3*() const
{
return mpSQLite;
}
/// Inline cast operator returning the pointer to SQLite Statement Object
inline operator sqlite3_stmt*() const
{
return mpStmt;
}
private:
/// @{ Unused/forbidden copy/assignment operator
Ptr& operator=(const Ptr& aPtr);
/// @}
private:
sqlite3* mpSQLite; //!< Pointer to SQLite Database Connection Handle
sqlite3_stmt* mpStmt; //!< Pointer to SQLite Statement Object
unsigned int* mpRefCount; //!< Pointer to the heap allocated reference counter of the sqlite3_stmt
//!< (to share it with Column objects)
};
private:
/// @{ Statement must be non-copyable
Statement(const Statement&);
Statement& operator=(const Statement&);
/// @}
/**
* @brief Check if a return code equals SQLITE_OK, else throw a SQLite::Exception with the SQLite error message
*
* @param[in] aRet SQLite return code to test against the SQLITE_OK expected value
*/
inline void check(const int aRet) const
{
if (SQLite::OK != aRet)
{
throw SQLite::Exception(mStmtPtr, aRet);
}
}
/**
* @brief Check if there is a row of result returned by executeStep(), else throw a SQLite::Exception.
*/
inline void checkRow() const
{
if (false == mbHasRow)
{
throw SQLite::Exception("No row to get a column from. executeStep() was not called, or returned false.");
}
}
/**
* @brief Check if there is a Column index is in the range of columns in the result.
*/
inline void checkIndex(const int aIndex) const
{
if ((aIndex < 0) || (aIndex >= mColumnCount))
{
throw SQLite::Exception("Column index out of range.");
}
}
private:
/// Map of columns index by name (mutable so getColumnIndex can be const)
typedef std::map<std::string, int> TColumnNames;
private:
std::string mQuery; //!< UTF-8 SQL Query
Ptr mStmtPtr; //!< Shared Pointer to the prepared SQLite Statement Object
int mColumnCount; //!< Number of columns in the result of the prepared statement
mutable TColumnNames mColumnNames; //!< Map of columns index by name (mutable so getColumnIndex can be const)
bool mbHasRow; //!< true when a row has been fetched with executeStep()
bool mbDone; //!< true when the last executeStep() had no more row to fetch
};
} // namespace SQLite

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/**
* @file Transaction.h
* @ingroup SQLiteCpp
* @brief A Transaction is way to group multiple SQL statements into an atomic secured operation.
*
* Copyright (c) 2012-2019 Sebastien Rombauts (sebastien.rombauts@gmail.com)
*
* Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
* or copy at http://opensource.org/licenses/MIT)
*/
#pragma once
#include <SQLiteCpp/Exception.h>
namespace SQLite
{
// Forward declaration
class Database;
/**
* @brief RAII encapsulation of a SQLite Transaction.
*
* A Transaction is a way to group multiple SQL statements into an atomic secured operation;
* either it succeeds, with all the changes committed to the database file,
* or if it fails, all the changes are rolled back to the initial state.
*
* Resource Acquisition Is Initialization (RAII) means that the Transaction
* begins in the constructor and is rollbacked in the destructor, so that there is
* no need to worry about memory management or the validity of the underlying SQLite Connection.
*
* This method also offers big performances improvements compared to individually executed statements.
*
* Thread-safety: a Transaction object shall not be shared by multiple threads, because :
* 1) in the SQLite "Thread Safe" mode, "SQLite can be safely used by multiple threads
* provided that no single database connection is used simultaneously in two or more threads."
* 2) the SQLite "Serialized" mode is not supported by SQLiteC++,
* because of the way it shares the underling SQLite precompiled statement
* in a custom shared pointer (See the inner class "Statement::Ptr").
*/
class Transaction
{
public:
/**
* @brief Begins the SQLite transaction
*
* @param[in] aDatabase the SQLite Database Connection
*
* Exception is thrown in case of error, then the Transaction is NOT initiated.
*/
explicit Transaction(Database& aDatabase);
/**
* @brief Safely rollback the transaction if it has not been committed.
*/
~Transaction();
/**
* @brief Commit the transaction.
*/
void commit();
private:
// Transaction must be non-copyable
Transaction(const Transaction&);
Transaction& operator=(const Transaction&);
/// @}
private:
Database& mDatabase; ///< Reference to the SQLite Database Connection
bool mbCommited; ///< True when commit has been called
};
} // namespace SQLite

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/**
* @file Utils.h
* @ingroup SQLiteCpp
* @brief Shared utility macros and functions.
*
* Copyright (c) 2013-2019 Sebastien Rombauts (sebastien.rombauts@gmail.com)
*
* Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
* or copy at http://opensource.org/licenses/MIT)
*/
#pragma once
#include <cstddef>
/**
* @brief A macro to disallow the copy constructor and operator= functions.
*
* This should be used in the private: declarations for a class
*
* @param[in] TypeName Class name to protect
*/
#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
TypeName(const TypeName&); \
void operator=(const TypeName&)
#ifdef _MSC_VER
#if _MSC_VER < 1600
/// A macro to enable the use of the nullptr keyword (NULL on older MSVC compilers, as they do not accept "nullptr_t")
#ifndef nullptr
#define nullptr NULL
#endif // nullptr
#endif // _MSC_VER < 1600
#elif defined(__APPLE__) // AppleClang
#elif defined(__clang__) && __has_feature(cxx_nullptr) // Clang 3.0+
#else // GCC or older Clang
#if (__cplusplus < 201103L) && !defined(__GXX_EXPERIMENTAL_CXX0X__) // before C++11 on GCC4.7 and Visual Studio 2010
#ifndef HAVE_NULLPTR
#define HAVE_NULLPTR ///< A macro to avoid double definition of nullptr
/**
* @brief nullptr_t is the type of the null pointer literal, nullptr.
*/
class nullptr_t {
public:
template<typename T>
inline operator T* () const { ///< convertible to any type of null non-member pointer...
return 0;
}
template<typename C, typename T>
inline operator T C::* () const { ///< convertible to any type of null member pointer...
return 0;
}
private:
void operator&() const; ///< Can't take address of nullptr NOLINT
};
/**
* @brief Better way to enable nullptr on older GCC/Clang compilers
*/
const nullptr_t nullptr = {};
#endif // HAVE_NULLPTR
#endif // (__cplusplus < 201103L) && !defined(__GXX_EXPERIMENTAL_CXX0X__)
#endif // _MSC_VER
// A macro for snprintf support in Visual Studio
#if defined(_MSC_VER) && _MSC_VER < 1500
#define snprintf _snprintf
#endif

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/**
* @file VariadicBind.h
* @ingroup SQLiteCpp
* @brief Convenience function for Statement::bind(...)
*
* Copyright (c) 2016 Paul Dreik (github@pauldreik.se)
* Copyright (c) 2016-2019 Sebastien Rombauts (sebastien.rombauts@gmail.com)
* Copyright (c) 2019 Maximilian Bachmann (github maxbachmann)
*
* Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
* or copy at http://opensource.org/licenses/MIT)
*/
#pragma once
#if (__cplusplus >= 201103L) || ( defined(_MSC_VER) && (_MSC_VER >= 1800) ) // c++11: Visual Studio 2013
#include <SQLiteCpp/Statement.h>
#if (__cplusplus >= 201402L) || ( defined(_MSC_VER) && (_MSC_VER >= 1900) ) // c++14: Visual Studio 2015
#include <tuple>
#endif // c++14
/// @cond
#include <utility>
#include <initializer_list>
namespace SQLite
{
/// @endcond
/**
* \brief Convenience function for calling Statement::bind(...) once for each argument given.
*
* This takes care of incrementing the index between each calls to bind.
*
* This feature requires a c++11 capable compiler.
*
* \code{.cpp}
* SQLite::Statement stm("SELECT * FROM MyTable WHERE colA>? && colB=? && colC<?");
* SQLite::bind(stm,a,b,c);
* //...is equivalent to
* stm.bind(1,a);
* stm.bind(2,b);
* stm.bind(3,c);
* \endcode
* @param query statement
* @param args zero or more args to bind.
*/
template<class ...Args>
void bind(SQLite::Statement& query, const Args& ... args)
{
int pos = 0;
(void)std::initializer_list<int>{
((void)query.bind(++pos, std::forward<decltype(args)>(args)), 0)...
};
}
#if (__cplusplus >= 201402L) || ( defined(_MSC_VER) && (_MSC_VER >= 1900) ) // c++14: Visual Studio 2015
/**
* \brief Convenience function for calling Statement::bind(...) once for each parameter of a tuple,
* by forwarding them to the variadic template
*
* This feature requires a c++14 capable compiler.
*
* \code{.cpp}
* SQLite::Statement stm("SELECT * FROM MyTable WHERE colA>? && colB=? && colC<?");
* SQLite::bind(stm, std::make_tuple(a, b, c));
* //...is equivalent to
* stm.bind(1,a);
* stm.bind(2,b);
* stm.bind(3,c);
* \endcode
* @param query statement
* @param tuple tuple with values to bind
*/
template <typename ... Types>
void bind(SQLite::Statement& query, const std::tuple<Types...> &tuple)
{
bind(query, tuple, std::index_sequence_for<Types...>());
}
/**
* \brief Convenience function for calling Statement::bind(...) once for each parameter of a tuple,
* by forwarding them to the variadic template. This function is just needed to convert the tuples
* to parameter packs
*
* This feature requires a c++14 capable compiler.
*
* @param query statement
* @param tuple tuple with values to bind
*/
template <typename ... Types, std::size_t ... Indices>
void bind(SQLite::Statement& query, const std::tuple<Types...> &tuple, std::index_sequence<Indices...>)
{
bind(query, std::get<Indices>(tuple)...);
}
#endif // c++14
} // namespace SQLite
#endif // c++11