a90c6dd460
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8
72 lines
2.4 KiB
C++
72 lines
2.4 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>
|
|
|
|
// template<class charT, class traits, class Allocator>
|
|
// constexpr bool operator<=(const charT* lhs, basic_string_wiew<charT,traits> rhs);
|
|
// template<class charT, class traits, class Allocator>
|
|
// constexpr bool operator<=(basic_string_wiew<charT,traits> lhs, const charT* rhs);
|
|
|
|
#include <experimental/string_view>
|
|
#include <cassert>
|
|
|
|
#include "constexpr_char_traits.hpp"
|
|
|
|
template <class S>
|
|
void
|
|
test(const typename S::value_type* lhs, const S& rhs, bool x, bool y)
|
|
{
|
|
assert((lhs <= rhs) == x);
|
|
assert((rhs <= lhs) == y);
|
|
}
|
|
|
|
int main()
|
|
{
|
|
{
|
|
typedef std::experimental::string_view S;
|
|
test("", S(""), true, true);
|
|
test("", S("abcde"), true, false);
|
|
test("", S("abcdefghij"), true, false);
|
|
test("", S("abcdefghijklmnopqrst"), true, false);
|
|
test("abcde", S(""), false, true);
|
|
test("abcde", S("abcde"), true, true);
|
|
test("abcde", S("abcdefghij"), true, false);
|
|
test("abcde", S("abcdefghijklmnopqrst"), true, false);
|
|
test("abcdefghij", S(""), false, true);
|
|
test("abcdefghij", S("abcde"), false, true);
|
|
test("abcdefghij", S("abcdefghij"), true, true);
|
|
test("abcdefghij", S("abcdefghijklmnopqrst"), true, false);
|
|
test("abcdefghijklmnopqrst", S(""), false, true);
|
|
test("abcdefghijklmnopqrst", S("abcde"), false, true);
|
|
test("abcdefghijklmnopqrst", S("abcdefghij"), false, true);
|
|
test("abcdefghijklmnopqrst", S("abcdefghijklmnopqrst"), true, true);
|
|
}
|
|
|
|
#if _LIBCPP_STD_VER > 11
|
|
{
|
|
typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
|
|
constexpr SV sv1;
|
|
constexpr SV sv2 { "abcde", 5 };
|
|
|
|
static_assert ( sv1 <= "", "" );
|
|
static_assert ( "" <= sv1, "" );
|
|
static_assert ( sv1 <= "abcde", "" );
|
|
static_assert (!("abcde" <= sv1), "" );
|
|
|
|
static_assert (!(sv2 <= ""), "" );
|
|
static_assert ( "" <= sv2, "" );
|
|
static_assert ( sv2 <= "abcde", "" );
|
|
static_assert ( "abcde" <= sv2, "" );
|
|
static_assert ( sv2 <= "abcde0", "" );
|
|
static_assert (!("abcde0" <= sv2), "" );
|
|
}
|
|
#endif
|
|
}
|