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Add macros for enabling/disabling warnings

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This allows us to avoid the ugly #if for compiler versions. We might
still need for when a warning only occurs in one compiler version, but
otherwise the code will be much cleaner.

Change-Id: Ibc941d898b3dad2e3d87c11378f29139c31f0fff
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
This commit is contained in:
Thiago Macieira 2014-10-30 20:44:43 -07:00
parent 34b66aaf07
commit 63a512023e
1 changed files with 45 additions and 1 deletions
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46
src/corelib/global/qcompilerdetection.h
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@ -1,7 +1,7 @@
/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Copyright (C) 2012 Intel Corporation
** Copyright (C) 2014 Intel Corporation
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtCore module of the Qt Toolkit.
@ -1060,6 +1060,50 @@
# define Q_DECL_CONST_FUNCTION Q_DECL_PURE_FUNCTION
#endif
/*
* Warning/diagnostic handling
*/
#define QT_DO_PRAGMA(text) _Pragma(#text)
#if defined(Q_CC_INTEL)
# define QT_WARNING_PUSH QT_DO_PRAGMA(warning(push))
# define QT_WARNING_POP QT_DO_PRAGMA(warning(pop))
# define QT_WARNING_DISABLE_INTEL(number) QT_DO_PRAGMA(warning(disable: number))
# define QT_WARNING_DISABLE_MSVC(number)
# define QT_WARNING_DISABLE_CLANG(text)
# define QT_WARNING_DISABLE_GCC(text)
#elif defined(Q_CC_MSVC) && _MSC_VER >= 1500
# undef QT_DO_PRAGMA /* not needed */
# define QT_WARNING_PUSH __pragma(warning(push))
# define QT_WARNING_POP __pragma(warning(pop))
# define QT_WARNING_DISABLE_MSVC(number) __pragma(warning(disable: number))
# define QT_WARNING_DISABLE_INTEL(number)
# define QT_WARNING_DISABLE_CLANG(text)
# define QT_WARNING_DISABLE_GCC(text)
#elif defined(Q_CC_CLANG)
# define QT_WARNING_PUSH QT_DO_PRAGMA(clang diagnostic push)
# define QT_WARNING_POP QT_DO_PRAGMA(clang diagnostic pop)
# define QT_WARNING_DISABLE_CLANG(text) QT_DO_PRAGMA(clang diagnostic ignored text)
# define QT_WARNING_DISABLE_GCC(text) QT_DO_PRAGMA(GCC diagnostic ignored text) // GCC directives work in Clang too
# define QT_WARNING_DISABLE_INTEL(number)
# define QT_WARNING_DISABLE_MSVC(number)
#elif defined(Q_CC_GNU) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 405)
# define QT_WARNING_PUSH QT_DO_PRAGMA(GCC diagnostic push)
# define QT_WARNING_POP QT_DO_PRAGMA(GCC diagnostic pop)
# define QT_WARNING_DISABLE_GCC(text) QT_DO_PRAGMA(GCC diagnostic ignored text)
# define QT_WARNING_DISABLE_CLANG(text)
# define QT_WARNING_DISABLE_INTEL(number)
# define QT_WARNING_DISABLE_MSVC(number)
#else // All other compilers, GCC < 4.6 and MSVC < 2008
# define QT_WARNING_DISABLE_GCC(text)
# define QT_WARNING_PUSH
# define QT_WARNING_POP
# define QT_WARNING_DISABLE_INTEL(number)
# define QT_WARNING_DISABLE_MSVC(number)
# define QT_WARNING_DISABLE_CLANG(text)
# define QT_WARNING_DISABLE_GCC(text)
#endif
/*
Proper for-scoping in MIPSpro CC
*/