Added SCOPE_FAIL and SCOPE_SUCCESS macros in non-portable C++.
Summary:
Added SCOPE_FAIL and SCOPE_SUCCESS macros in non-portable C++. The macros are similar to D's scope(failure) and scope(success).
Currently the supported platforms are GCC and MSVC. For all others, std::uncaught_exception() is used, which will fail if the macros are used in a destructor called during stack unwinding.
@override-unit-failures
Test Plan:
1. Added new unit test to ScopeGuardTest.cpp.
2. Ran fbconfig -r folly && fbmake dbg
3. Ran _build/dbg/folly/test/scope_guard_test to make sure my unit test was running and passing.
Reviewed By: andrei.alexandrescu@fb.com
FB internal diff:
D1033621
projects / folly.git / commit