diff options
Diffstat (limited to 'libcxx/test/std/experimental/string.view/string.view.access/front.pass.cpp')
-rw-r--r-- | libcxx/test/std/experimental/string.view/string.view.access/front.pass.cpp | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/libcxx/test/std/experimental/string.view/string.view.access/front.pass.cpp b/libcxx/test/std/experimental/string.view/string.view.access/front.pass.cpp new file mode 100644 index 00000000000..e9df44b19b1 --- /dev/null +++ b/libcxx/test/std/experimental/string.view/string.view.access/front.pass.cpp @@ -0,0 +1,48 @@ +//===----------------------------------------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + + +// <string_view> + +// constexpr const _CharT& back(); + +#include <experimental/string_view> +#include <cassert> + +template <typename CharT> +bool test ( const CharT *s, size_t len ) { + std::experimental::basic_string_view<CharT> sv ( s, len ); + assert ( sv.length() == len ); + assert ( sv.front() == s[0] ); + return &sv.front() == s; + } + +int main () { + assert ( test ( "ABCDE", 5 )); + assert ( test ( "a", 1 )); + + assert ( test ( L"ABCDE", 5 )); + assert ( test ( L"a", 1 )); + +#if __cplusplus >= 201103L + assert ( test ( u"ABCDE", 5 )); + assert ( test ( u"a", 1 )); + + assert ( test ( U"ABCDE", 5 )); + assert ( test ( U"a", 1 )); +#endif + +#if __cplusplus >= 201103L + { + constexpr std::experimental::basic_string_view<char> sv ( "ABC", 2 ); + static_assert ( sv.length() == 2, "" ); + static_assert ( sv.front() == 'A', "" ); + } +#endif +} |