[libcxx] Improve tests to use the UNSUPPORTED lit directive
Quite a few libcxx tests seem to follow the format:
#if _LIBCPP_STD_VER > X
// Do test.
#else
// Empty test.
#endif
We should instead use the UNSUPPORTED lit directive to exclude the test on
earlier C++ standards. This gives us a more accurate number of test passes
for those standards and avoids unnecessary conflicts with other lit
directives on the same tests.
Reviewers: bcraig, ericwf, mclow.lists
Differential revision: http://reviews.llvm.org/D20730
llvm-svn: 271108
diff --git a/libcxx/test/std/input.output/file.streams/c.files/gets.fail.cpp b/libcxx/test/std/input.output/file.streams/c.files/gets.fail.cpp
index 4250e23..60a7642 100644
--- a/libcxx/test/std/input.output/file.streams/c.files/gets.fail.cpp
+++ b/libcxx/test/std/input.output/file.streams/c.files/gets.fail.cpp
@@ -7,6 +7,7 @@
//
//===----------------------------------------------------------------------===//
+// UNSUPPORTED: c++98, c++03, c++11
// test <cstdio>
// gets
@@ -15,9 +16,5 @@
int main()
{
-#if _LIBCPP_STD_VER > 11
(void) std::gets((char *) NULL);
-#else
-#error
-#endif
}