a90c6dd460
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8
88 lines
2.6 KiB
C++
88 lines
2.6 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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>
|
|
|
|
// [string.view.capacity], capacity
|
|
// constexpr size_type size() const noexcept;
|
|
// constexpr size_type length() const noexcept;
|
|
// constexpr size_type max_size() const noexcept;
|
|
// constexpr bool empty() const noexcept;
|
|
|
|
#include <experimental/string_view>
|
|
#include <cassert>
|
|
|
|
template<typename SV>
|
|
void test1 () {
|
|
#if _LIBCPP_STD_VER > 11
|
|
{
|
|
constexpr SV sv1;
|
|
static_assert ( sv1.size() == 0, "" );
|
|
static_assert ( sv1.empty(), "");
|
|
static_assert ( sv1.size() == sv1.length(), "" );
|
|
static_assert ( sv1.max_size() > sv1.size(), "");
|
|
}
|
|
#endif
|
|
|
|
{
|
|
SV sv1;
|
|
assert ( sv1.size() == 0 );
|
|
assert ( sv1.empty());
|
|
assert ( sv1.size() == sv1.length());
|
|
assert ( sv1.max_size() > sv1.size());
|
|
}
|
|
}
|
|
|
|
template<typename CharT>
|
|
void test2 ( const CharT *s, size_t len ) {
|
|
{
|
|
std::experimental::basic_string_view<CharT> sv1 ( s );
|
|
assert ( sv1.size() == len );
|
|
assert ( sv1.data() == s );
|
|
assert ( sv1.empty() == (len == 0));
|
|
assert ( sv1.size() == sv1.length());
|
|
assert ( sv1.max_size() > sv1.size());
|
|
}
|
|
}
|
|
|
|
int main () {
|
|
typedef std::experimental::string_view string_view;
|
|
typedef std::experimental::u16string_view u16string_view;
|
|
typedef std::experimental::u32string_view u32string_view;
|
|
typedef std::experimental::wstring_view wstring_view;
|
|
|
|
test1<string_view> ();
|
|
test1<u16string_view> ();
|
|
test1<u32string_view> ();
|
|
test1<wstring_view> ();
|
|
|
|
test2 ( "ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE", 105 );
|
|
test2 ( "ABCDE", 5 );
|
|
test2 ( "a", 1 );
|
|
test2 ( "", 0 );
|
|
|
|
test2 ( L"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE", 105 );
|
|
test2 ( L"ABCDE", 5 );
|
|
test2 ( L"a", 1 );
|
|
test2 ( L"", 0 );
|
|
|
|
#if __cplusplus >= 201103L
|
|
test2 ( u"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE", 105 );
|
|
test2 ( u"ABCDE", 5 );
|
|
test2 ( u"a", 1 );
|
|
test2 ( u"", 0 );
|
|
|
|
test2 ( U"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE", 105 );
|
|
test2 ( U"ABCDE", 5 );
|
|
test2 ( U"a", 1 );
|
|
test2 ( U"", 0 );
|
|
#endif
|
|
}
|