diff options
| author | Jędrzej Nowacki <jedrzej.nowacki@nokia.com> | 2011-10-14 12:58:54 +0200 |
|---|---|---|
| committer | Qt by Nokia <qt-info@nokia.com> | 2011-10-19 19:25:37 +0200 |
| commit | 663cd1771883e1e7ac9c1a0dc8b797601b59ba17 (patch) | |
| tree | cd25c63a24ed4a59c077bd0ee7d4fda8d878bc6c /src/corelib/global | |
| parent | 0b6d4a2d65536670423778f53269026b12552017 (diff) | |
Introduce Q_STATIC_ASSERT
Example of message of failed assert (gcc 4.6, file tst_qglobal.cpp:300):
tst_qglobal.cpp:300:92: error: invalid application of ‘sizeof’
to incomplete type ‘QStaticAssertFailure<false>’
Change-Id: Ic1798094f718eaad388d754034115aafbbb6bd5e
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
Diffstat (limited to 'src/corelib/global')
| -rw-r--r-- | src/corelib/global/qglobal.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/corelib/global/qglobal.h b/src/corelib/global/qglobal.h index 5f8e6be893..ee601859b7 100644 --- a/src/corelib/global/qglobal.h +++ b/src/corelib/global/qglobal.h @@ -1785,6 +1785,15 @@ Q_CORE_EXPORT void qt_assert_x(const char *where, const char *what, const char * # endif #endif +// Intentionally undefined +template <bool Test> class QStaticAssertFailure; +template <> class QStaticAssertFailure<true> {}; + +#define Q_STATIC_ASSERT_PRIVATE_JOIN(A, B) Q_STATIC_ASSERT_PRIVATE_JOIN_IMPL(A, B) +#define Q_STATIC_ASSERT_PRIVATE_JOIN_IMPL(A, B) A ## B +#define Q_STATIC_ASSERT(...) \ + enum {Q_STATIC_ASSERT_PRIVATE_JOIN(q_static_assert_result, __LINE__) = sizeof(QStaticAssertFailure<bool(__VA_ARGS__)>)} + Q_CORE_EXPORT void qt_check_pointer(const char *, int); Q_CORE_EXPORT void qBadAlloc(); |