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suppress Sun CC warnings about casting between C++ and extern C function pointers

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@46634 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2007-06-22 15:11:27 +00:00
parent 3bc8edd575
commit 7d10ec93c4
1 changed files with 12 additions and 2 deletions
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14
src/unix/appunix.cpp
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@@ -52,13 +52,23 @@ void wxAppConsole::CheckSignal()
} }
} }
// the type of the signal handlers we use is "void(*)(int)" while the real
// signal handlers are extern "C" and so have incompatible type and at least
// Sun CC warns about it, so use explicit casts to suppress these warnings as
// they should be harmless
extern "C"
{
typedef void (*SignalHandler_t)(int);
}
bool wxAppConsole::SetSignalHandler(int signal, SignalHandler handler) bool wxAppConsole::SetSignalHandler(int signal, SignalHandler handler)
{ {
const bool install = handler != SIG_DFL && handler != SIG_IGN; const bool install = (SignalHandler_t)handler != SIG_DFL &&
(SignalHandler_t)handler != SIG_IGN;
struct sigaction sa; struct sigaction sa;
memset(&sa, 0, sizeof(sa)); memset(&sa, 0, sizeof(sa));
sa.sa_handler = &wxAppConsole::HandleSignal; sa.sa_handler = (SignalHandler_t)&wxAppConsole::HandleSignal;
sa.sa_flags = SA_RESTART; sa.sa_flags = SA_RESTART;
int res = sigaction(signal, &sa, 0); int res = sigaction(signal, &sa, 0);
if ( res != 0 ) if ( res != 0 )