1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// <string> 11 12// template<class charT, class traits, class Allocator> 13// constexpr bool operator>=(const charT* lhs, basic_string_wiew<charT,traits> rhs); 14// template<class charT, class traits, class Allocator> 15// constexpr bool operator>=(basic_string_wiew<charT,traits> lhs, const charT* rhs); 16 17#include <experimental/string_view> 18#include <cassert> 19 20#include "test_macros.h" 21#include "constexpr_char_traits.hpp" 22 23template <class S> 24void 25test(const typename S::value_type* lhs, const S& rhs, bool x, bool y) 26{ 27 assert((lhs >= rhs) == x); 28 assert((rhs >= lhs) == y); 29} 30 31int main() 32{ 33 { 34 typedef std::experimental::string_view S; 35 test("", S(""), true, true); 36 test("", S("abcde"), false, true); 37 test("", S("abcdefghij"), false, true); 38 test("", S("abcdefghijklmnopqrst"), false, true); 39 test("abcde", S(""), true, false); 40 test("abcde", S("abcde"), true, true); 41 test("abcde", S("abcdefghij"), false, true); 42 test("abcde", S("abcdefghijklmnopqrst"), false, true); 43 test("abcdefghij", S(""), true, false); 44 test("abcdefghij", S("abcde"), true, false); 45 test("abcdefghij", S("abcdefghij"), true, true); 46 test("abcdefghij", S("abcdefghijklmnopqrst"), false, true); 47 test("abcdefghijklmnopqrst", S(""), true, false); 48 test("abcdefghijklmnopqrst", S("abcde"), true, false); 49 test("abcdefghijklmnopqrst", S("abcdefghij"), true, false); 50 test("abcdefghijklmnopqrst", S("abcdefghijklmnopqrst"), true, true); 51 } 52 53#if TEST_STD_VER > 11 54 { 55 typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV; 56 constexpr SV sv1; 57 constexpr SV sv2 { "abcde", 5 }; 58 59 static_assert ( sv1 >= "", "" ); 60 static_assert ( "" >= sv1, "" ); 61 static_assert (!(sv1 >= "abcde"), "" ); 62 static_assert ( "abcde" >= sv1, "" ); 63 64 static_assert ( sv2 >= "", "" ); 65 static_assert (!("" >= sv2), "" ); 66 static_assert ( sv2 >= "abcde", "" ); 67 static_assert ( "abcde" >= sv2, "" ); 68 static_assert (!(sv2 >= "abcde0"), "" ); 69 static_assert ( "abcde0" >= sv2, "" ); 70 } 71#endif 72} 73