libstdc++: add using std::size_t

Without a definition for size_t in global namespace, there are errors
like this one for arm-none-eabi:

.../requirements_neg.cc:5: error: 'size_t' has not been declared

libstdc++-v3/ChangeLog:

	* testsuite/29_atomics/atomic_ref/requirements_neg.cc: Add
	using std::size_t.

Signed-off-by: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>

diff --git a/libstdc++-v3/testsuite/29_atomics/atomic_ref/requirements_neg.cc b/libstdc++-v3/testsuite/29_atomics/atomic_ref/requirements_neg.cc
index 8b0abbde023facc7ca73f67a7f88c64c7d0a9e7e..a3613e0e73367e08b3633553aa2aaf7de2e609e4 100644 (file)
--- a/libstdc++-v3/testsuite/29_atomics/atomic_ref/requirements_neg.cc
+++ b/libstdc++-v3/testsuite/29_atomics/atomic_ref/requirements_neg.cc
@@ -2,6 +2,8 @@
 
 #include <atomic>
 
+using std::size_t;
+
 template<size_t N>
 struct NonTrivial
 {