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Fix compilation of wx/scopeguard.h with g++ -fno-exceptions.

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Don't use try/catch in public headers if exceptions support is disabled with a
compiler switch.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@63474 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2010-02-12 22:47:25 +00:00
parent 011ad05168
commit 06b76f7e8b
1 changed files with 14 additions and 5 deletions
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19
include/wx/except.h
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@ -18,13 +18,22 @@
// macros working whether wxUSE_EXCEPTIONS is 0 or 1
// ----------------------------------------------------------------------------
#if wxUSE_EXCEPTIONS
#define wxTRY try
#define wxCATCH_ALL(code) catch ( ... ) { code }
#else // !wxUSE_EXCEPTIONS
// even if the library itself was compiled with exceptions support, the user
// code using it might be compiling with a compiler switch disabling them in
// which cases we shouldn't use try/catch in the headers -- this results in
// compilation errors in e.g. wx/scopeguard.h with at least g++ 4
#if !wxUSE_EXCEPTIONS || \
(defined(__GNUG__) && !defined(__EXCEPTIONS))
#define wxNO_EXCEPTIONS
#endif
#ifdef wxNO_EXCEPTIONS
#define wxTRY
#define wxCATCH_ALL(code)
#endif // wxUSE_EXCEPTIONS/!wxUSE_EXCEPTIONS
#else // do use exceptions
#define wxTRY try
#define wxCATCH_ALL(code) catch ( ... ) { code }
#endif // wxNO_EXCEPTIONS/!wxNO_EXCEPTIONS
#endif // _WX_EXCEPT_H_