diff options
Diffstat (limited to 'test/std/strings/string.view/string.view.iterators/rbegin.pass.cpp')
-rw-r--r-- | test/std/strings/string.view/string.view.iterators/rbegin.pass.cpp | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/test/std/strings/string.view/string.view.iterators/rbegin.pass.cpp b/test/std/strings/string.view/string.view.iterators/rbegin.pass.cpp new file mode 100644 index 000000000000..381f792e5ce0 --- /dev/null +++ b/test/std/strings/string.view/string.view.iterators/rbegin.pass.cpp @@ -0,0 +1,61 @@ +//===----------------------------------------------------------------------===// +// +// 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> + +// const_iterator rbegin() const; + +#include <string_view> +#include <cassert> + +#include "test_macros.h" + +template <class S> +void +test(S s) +{ + const S& cs = s; + typename S::reverse_iterator b = s.rbegin(); + typename S::const_reverse_iterator cb1 = cs.rbegin(); + typename S::const_reverse_iterator cb2 = s.crbegin(); + if (!s.empty()) + { + const size_t last = s.size() - 1; + assert( *b == s[last]); + assert( &*b == &s[last]); + assert( *cb1 == s[last]); + assert(&*cb1 == &s[last]); + assert( *cb2 == s[last]); + assert(&*cb2 == &s[last]); + + } + assert( b == cb1); + assert( b == cb2); + assert(cb1 == cb2); +} + + +int main() +{ + typedef std::string_view string_view; + typedef std::u16string_view u16string_view; + typedef std::u32string_view u32string_view; + typedef std::wstring_view wstring_view; + + test(string_view ()); + test(u16string_view()); + test(u32string_view()); + test(wstring_view ()); + test(string_view ( "123")); + test(wstring_view (L"123")); +#if TEST_STD_VER >= 11 + test(u16string_view{u"123"}); + test(u32string_view{U"123"}); +#endif +} |