1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // <array> 10 11 // An string is a contiguous container 12 13 #include <string> 14 #include <cassert> 15 16 #include "test_macros.h" 17 #include "test_allocator.h" 18 #include "min_allocator.h" 19 20 21 template <class C> 22 void test_contiguous ( const C &c ) 23 { 24 for ( size_t i = 0; i < c.size(); ++i ) 25 assert ( *(c.begin() + static_cast<typename C::difference_type>(i)) == *(std::addressof(*c.begin()) + i)); 26 } 27 28 bool test() { 29 { 30 typedef std::string S; 31 test_contiguous(S()); 32 test_contiguous(S("1")); 33 test_contiguous(S("1234567890123456789012345678901234567890123456789012345678901234567890")); 34 } 35 36 { 37 typedef test_allocator<char> A; 38 typedef std::basic_string<char, std::char_traits<char>, A> S; 39 test_contiguous(S(A(3))); 40 test_contiguous(S("1", A(5))); 41 test_contiguous(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7))); 42 } 43 #if TEST_STD_VER >= 11 44 { 45 typedef min_allocator<char> A; 46 typedef std::basic_string<char, std::char_traits<char>, A> S; 47 test_contiguous(S(A{})); 48 test_contiguous(S("1", A())); 49 test_contiguous(S("1234567890123456789012345678901234567890123456789012345678901234567890", A())); 50 } 51 #endif 52 53 return true; 54 } 55 56 int main(int, char**) 57 { 58 test(); 59 #if TEST_STD_VER > 17 60 // static_assert(test()); 61 #endif 62 63 return 0; 64 } 65