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Implement feature test macros using a script.

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Summary:
This patch implements all the feature test macros libc++ currently supports, as specified by the standard or cppreference prior to C++2a.

The tests and `<version>` header are generated using a script. The script contains a table of each feature test macro, the headers it should be accessible from, and its values of each dialect of C++.
When a new feature test macro is added or needed, the table should be updated and the script re-run.



Reviewers: mclow.lists, jfb, serge-sans-paille

Reviewed By: mclow.lists

Subscribers: arphaman, jfb, ldionne, libcxx-commits

Differential Revision: https://reviews.llvm.org/D56750

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@351286 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Fiselier
2019-01-16 01:37:43 +00:00
parent 3ea6c6b30c
commit a8b9f59e8c
48 changed files with 7483 additions and 1110 deletions
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55
test/std/language.support/support.limits/support.limits.general/exception.version.pass.cpp
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@@ -1,4 +1,3 @@
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
@@ -8,26 +7,50 @@
//
//===----------------------------------------------------------------------===//
//
// <exception> feature macros
// WARNING: This test was generated by generate_feature_test_macros_tests.py and
// should not be edited manually.
/* Constant Value
__cpp_lib_uncaught_exceptions 201411L
// <exception>
// Test the feature test macros defined by <exception>
/* Constant Value
__cpp_lib_uncaught_exceptions 201411L [C++17]
*/
#include <exception>
#include <cassert>
#include "test_macros.h"
int main()
{
// ensure that the macros that are supposed to be defined in <exception> are defined.
#if TEST_STD_VER < 14
/*
#if !defined(__cpp_lib_fooby)
# error "__cpp_lib_fooby is not defined"
#elif __cpp_lib_fooby < 201606L
# error "__cpp_lib_fooby has an invalid value"
#endif
*/
}
# ifdef __cpp_lib_uncaught_exceptions
# error "__cpp_lib_uncaught_exceptions should not be defined before c++17"
# endif
#elif TEST_STD_VER == 14
# ifdef __cpp_lib_uncaught_exceptions
# error "__cpp_lib_uncaught_exceptions should not be defined before c++17"
# endif
#elif TEST_STD_VER == 17
# ifndef __cpp_lib_uncaught_exceptions
# error "__cpp_lib_uncaught_exceptions should be defined in c++17"
# endif
# if __cpp_lib_uncaught_exceptions != 201411L
# error "__cpp_lib_uncaught_exceptions should have the value 201411L in c++17"
# endif
#elif TEST_STD_VER > 17
# ifndef __cpp_lib_uncaught_exceptions
# error "__cpp_lib_uncaught_exceptions should be defined in c++2a"
# endif
# if __cpp_lib_uncaught_exceptions != 201411L
# error "__cpp_lib_uncaught_exceptions should have the value 201411L in c++2a"
# endif
#endif // TEST_STD_VER > 17
int main() {}