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authorDimitry Andric <dim@FreeBSD.org>2017-01-14 15:39:13 +0000
committerDimitry Andric <dim@FreeBSD.org>2017-01-14 15:39:13 +0000
commitfd857c8184809f0fac54f7ec9d9e91477beb1b7d (patch)
tree58ed2d52992ba3dcfcc9e34d35ab3ed8b7aa76ed /test/std/strings/char.traits/char.traits.specializations/char.traits.specializations.wchar.t/compare.pass.cpp
parent78da6db1f23c0bfe8a36a5b5c05d06005037e556 (diff)
Vendor import of libc++ release_40 branch r292009:vendor/libc++/libc++-release_40-r292009
Notes
Notes: svn path=/vendor/libc++/dist/; revision=312179 svn path=/vendor/libc++/libc++-release_40-r292009/; revision=312180; tag=vendor/libc++/libc++-release_40-r292009
Diffstat (limited to 'test/std/strings/char.traits/char.traits.specializations/char.traits.specializations.wchar.t/compare.pass.cpp')
-rw-r--r--test/std/strings/char.traits/char.traits.specializations/char.traits.specializations.wchar.t/compare.pass.cpp16
1 files changed, 16 insertions, 0 deletions
diff --git a/test/std/strings/char.traits/char.traits.specializations/char.traits.specializations.wchar.t/compare.pass.cpp b/test/std/strings/char.traits/char.traits.specializations/char.traits.specializations.wchar.t/compare.pass.cpp
index 124201bb82f3..894560d69396 100644
--- a/test/std/strings/char.traits/char.traits.specializations/char.traits.specializations.wchar.t/compare.pass.cpp
+++ b/test/std/strings/char.traits/char.traits.specializations/char.traits.specializations.wchar.t/compare.pass.cpp
@@ -12,10 +12,22 @@
// template<> struct char_traits<wchar_t>
// static int compare(const char_type* s1, const char_type* s2, size_t n);
+// constexpr in C++17
#include <string>
#include <cassert>
+#include "test_macros.h"
+
+#if TEST_STD_VER > 14
+constexpr bool test_constexpr()
+{
+ return std::char_traits<wchar_t>::compare(L"123", L"223", 3) < 0
+ && std::char_traits<wchar_t>::compare(L"223", L"123", 3) > 0
+ && std::char_traits<wchar_t>::compare(L"123", L"123", 3) == 0;
+}
+#endif
+
int main()
{
assert(std::char_traits<wchar_t>::compare(L"", L"", 0) == 0);
@@ -38,4 +50,8 @@ int main()
assert(std::char_traits<wchar_t>::compare(L"223", L"123", 3) > 0);
assert(std::char_traits<wchar_t>::compare(L"133", L"123", 3) > 0);
assert(std::char_traits<wchar_t>::compare(L"124", L"123", 3) > 0);
+
+#if TEST_STD_VER > 14
+ static_assert(test_constexpr(), "" );
+#endif
}