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Add opt-in leak detection under MSVC + Windows. 

Closes #439
This commit is contained in:
Martin Hořeňovský 2017-02-16 11:09:09 +01:00
parent c6178601c5
commit d8230a8d4d
2 changed files with 17 additions and 0 deletions
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3
docs/configuration.md
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@ -76,6 +76,7 @@ All C++11 support can be disabled with `CATCH_CONFIG_NO_CPP11`
CATCH_CONFIG_WINDOWS_SEH // Enable SEH handling on Windows
CATCH_CONFIG_FAST_COMPILE // Sacrifices some (extremely minor) features for compilation speed
CATCH_CONFIG_POSIX_SIGNALS // Enable handling POSIX signals
CATCH_CONFIG_WINDOWS_CRTDBG // Enable leak checking using Windows's CRT Debug Heap
Currently Catch enables `CATCH_CONFIG_WINDOWS_SEH` only when compiled with MSVC, because some versions of MinGW do not have the necessary Win32 API support.
@ -83,6 +84,8 @@ At this moment, `CATCH_CONFIG_FAST_COMPILE` changes only the behaviour of the `-
`CATCH_CONFIG_POSIX_SIGNALS` is on by default, except when Catch is compiled under `Cygwin`, where it is disabled by default (but can be force-enabled by defining `CATCH_CONFIG_POSIX_SIGNALS`).
`CATCH_CONFIG_WINDOWS_CRTDBG` is off by default. If enabled, it sets Windows's CRT to check for memory leaks, and displays them after the tests finish running.
Just as with the C++11 conformance toggles, these toggles can be disabled by using `_NO_` form of the toggle, e.g. `CATCH_CONFIG_NO_WINDOWS_SEH`.
# Windows header clutter

14
include/internal/catch_default_main.hpp
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@ -10,8 +10,22 @@
#ifndef __OBJC__
#ifdef CATCH_CONFIG_WINDOWS_CRTDBG
#include <crtdbg.h>
#endif
// Standard C/C++ main entry point
int main (int argc, char * argv[]) {
#ifdef CATCH_CONFIG_WINDOWS_CRTDBG
int flag = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);
flag |= _CRTDBG_LEAK_CHECK_DF;
flag |= _CRTDBG_ALLOC_MEM_DF;
_CrtSetDbgFlag(flag);
_CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE);
_CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
// Change this to leaking allocation's number to break there
_CrtSetBreakAlloc(-1);
#endif
int result = Catch::Session().run( argc, argv );
return ( result < 0xff ? result : 0xff );
}