MySQL++
3.2.4
common.h
Go to the documentation of this file.
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/***********************************************************************
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Copyright © 1998 by Kevin Atkinson, © 1999-2001 by MySQL AB,
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© 2004-2009, 2018 by Educational Technology Resources, Inc., and
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© 2009 by Warren Young. Others may also hold copyrights on code
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in this file. See the CREDITS.txt file in the top directory of the
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distribution for details.
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This file is part of MySQL++.
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MySQL++ is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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MySQL++ is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with MySQL++; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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USA
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***********************************************************************/
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#if !defined(MYSQLPP_COMMON_H)
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#define MYSQLPP_COMMON_H
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#if !defined(DOXYGEN_IGNORE)
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// Doxygen will not generate documentation for the following stuff.
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// Enable SSQLS by default. Turned off below on platforms where we
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// know it doesn't work.
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#define MYSQLPP_SSQLS_COMPATIBLE
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// For all platforms but Visual C++ 2003, the following macro is just
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// an alias for "*this". It needs a more complicated definition on
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// VC++ 2003 to work around an error in the overloaded operator lookup
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// logic. For an explanation of the problem, see:
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// http://groups.google.com/group/microsoft.public.vc.stl/browse_thread/thread/9a68d84644e64f15
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#define MYSQLPP_QUERY_THISPTR *this
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// Work out major platform-specific stuff here.
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#if defined(__WIN32__) || defined(_WIN32)
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# define MYSQLPP_PLATFORM_WINDOWS
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// Windows compiler support. Tested with Microsoft Visual C++,
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// Borland C++ Builder, and MinGW GCC.
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// Don't let windows.h (via Connector/C) #define min/max
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#define NOMINMAX
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// Stuff for Visual C++ only
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# if defined(_MSC_VER)
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# define MYSQLPP_PLATFORM_VISUAL_CPP
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// MS *still* doesn't ship stdint.h, through VC++ 2008 at least.
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// This means we have to take a wild guess at appropriate
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// integer types in lib/sql_types.h. See test/inttypes.cpp for
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// tests that check whether we've guessed well.
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# define MYSQLPP_NO_STDINT_H
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# if _MSC_VER < 1400
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// Workarounds for limitations of VC++ 2003 that are fixed
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// in 2005 and later.
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# undef MYSQLPP_QUERY_THISPTR
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# define MYSQLPP_QUERY_THISPTR dynamic_cast<std::ostream&>(*this)
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# undef MYSQLPP_SSQLS_COMPATIBLE
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# elif !defined(_STLP_VERSION) && !defined(_STLP_VERSION_STR)
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// VC++ 2005 or newer and not using STLport, so #define
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// portability flags indicating features we can use from
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// the compiler's native RTL.
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# define MYSQLPP_HAVE_LOCALTIME_S
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# define MYSQLPP_HAVE_STD__NOINIT
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# endif
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// Disable complaints about STL data members: VC++ believes
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// these need to be __declspec(dllexport) for some reason.
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# pragma warning(disable: 4251)
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// Disable complaint that VC++ doesn't grok throw specs
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# pragma warning(disable: 4290)
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// Disable whining about using 'this' as a member initializer on VC++.
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# pragma warning(disable: 4355)
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// Disable whining about implicit conversions to bool
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# pragma warning(disable: 4800)
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// Disable nagging about new "secure" functions like strncpy_s()
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# pragma warning(disable: 4996)
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// Prior to Visual C++ 2015, we must use _snprintf()
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# if _MSC_VER < 1900
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# define snprintf _snprintf
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# endif
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# endif
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// Define DLL import/export tags for Windows compilers, where we build
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// the library into a DLL, for LGPL license compatibility reasons.
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// (This is based on a similar mechanism in wxWindows.)
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#ifdef MYSQLPP_MAKING_DLL
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// When making the DLL, export tagged symbols, so they appear
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// in the import library.
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#define MYSQLPP_EXPORT __declspec(dllexport)
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#elif !defined(MYSQLPP_NO_DLL)
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// We must be _using_ the DLL, so import symbols instead.
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#define MYSQLPP_EXPORT __declspec(dllimport)
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#else
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// Not making a DLL at all, so no-op these declspecs
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#define MYSQLPP_EXPORT
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#endif
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// We need to use the DOS/Windows path separator here
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#define MYSQLPP_PATH_SEPARATOR '\\'
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#else
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// If not VC++, MinGW, or Xcode, we assume we're on a system using
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// autoconf, so bring in the config.h file it wrote containing the
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// config test results. Only do this during the library build, and
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// even then, not if included from a MySQL++ header file, since
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// config.h cannot be safely installed with the other headers.
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# if defined(MYSQLPP_NOT_HEADER) && !defined(MYSQLPP_XCODE)
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# include "config.h"
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# endif
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// Make DLL stuff a no-op on this platform.
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#define MYSQLPP_EXPORT
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// Assume POSIX path separator
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#define MYSQLPP_PATH_SEPARATOR '/'
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#endif
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// Workarounds for deprecations in C++11 and newer. We must still
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// support systems whose contemporaneous C++ compiler only understands
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// C++98. Because of the large gap between C++98 and C++11, it will
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// likely be years yet until we can start using C++11 unconditionally
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// within MySQL++, then years more until we can use C++14, etc.
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//
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// Our test here currently only works for g++ and clang++: it's testing
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// for C++17.
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//
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// That release finally did away with throwspecs, a feature of C++ that
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// is only used by the oldest parts of MySQL++. We can't drop the
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// throwspecs until MySQL++ 4, if we ever get around to that, since
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// that would break the library's ABI on systems whose C++ compiler
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// still supports throwspecs.
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#if __cplusplus < 201703L
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# define MAY_THROW(what) throw(what)
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#else
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# define MAY_THROW(junk) noexcept(false)
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#endif
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// C++11 added unique_ptr as a replacement for auto_ptr. We don't have
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// the ABI problem above with this one, so we switch to it with the
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// oldest release possible. As with the above ifdef, this one only
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// currently works for g++ and clang++.
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#if __cplusplus >= 201103L
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# define UNIQUE_PTR(what) std::unique_ptr<what>
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#else
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# define UNIQUE_PTR(what) std::auto_ptr<what>
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#endif
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namespace
mysqlpp
{
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const
bool
use_exceptions =
true
;
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enum
sql_cmp_type { sql_use_compare };
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#if !defined(DOXYGEN_IGNORE)
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// Figure out how to get large integer support on this system. Suppress
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// refman documentation for these typedefs, as they're system-dependent.
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#if defined(MYSQLPP_NO_LONG_LONGS)
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// Alias "longlong" and "ulonglong" to the regular "long" counterparts
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typedef
unsigned
long
ulonglong;
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typedef
long
longlong;
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#elif defined(_MSC_VER)
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// It's VC++, so we'll use Microsoft's 64-bit integer types
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typedef
unsigned
__int64 ulonglong;
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typedef
__int64 longlong;
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#else
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// No better idea, so assume the C99 convention. If your compiler
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// doesn't support this, please provide a patch to extend this ifdef, or
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// define MYSQLPP_NO_LONG_LONGS.
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typedef
unsigned
long
long
ulonglong;
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typedef
long
long
longlong;
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#endif
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#endif // !defined(DOXYGEN_IGNORE)
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#if !defined(MYSQLPP_NO_UNSIGNED_INT_TYPES)
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typedef
unsigned
long
ulong;
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#endif
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}
// end namespace mysqlpp
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// The MySQL headers define these macros, which is completely wrong in a
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// C++ project. Undo the damage.
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#undef min
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#undef max
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#endif // !defined(DOXYGEN_IGNORE)
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// Now that we've defined all the stuff above, we can pull in the full
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// MySQL header. Basically, the above largely replaces MySQL's my_global.h
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// while actually working with C++. This is why we disobey the MySQL
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// developer docs, which recommend including my_global.h before mysql.h.
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#if defined(MYSQLPP_MYSQL_HEADERS_BURIED)
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# include <mysql/mysql.h>
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#else
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# include <mysql.h>
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#endif
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// The Unicode chapter of the user manual justifies the following.
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#if MYSQL_VERSION_ID >= 50500
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# define MYSQLPP_UTF8_CS "utf8mb4"
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# define MYSQLPP_UTF8_COL "utf8mb4_general_ci"
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#else
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# define MYSQLPP_UTF8_CS "utf8"
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# define MYSQLPP_UTF8_COL "utf8_general_ci"
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#endif
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#endif // !defined(MYSQLPP_COMMON_H)
mysqlpp
Definition:
autoflag.h:31
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