1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 3f5256e16dfc425c1d466f6308d4026d529ce9e0bHoward Hinnant// The LLVM Compiler Infrastructure 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 5b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 6b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// <string> 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// const charT& front() const; 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// charT& front(); 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 155e57142c5902c3f73a6fdcb8cab55e88ffb43a56Howard Hinnant#ifdef _LIBCPP_DEBUG 16499cea12bb2b1c440f28274227d9fd98cd1c609eHoward Hinnant#define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0)) 17499cea12bb2b1c440f28274227d9fd98cd1c609eHoward Hinnant#endif 18499cea12bb2b1c440f28274227d9fd98cd1c609eHoward Hinnant 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <string> 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 22061d0cc4db18d17bf01ed14c5db0be098205bd47Marshall Clow#include "min_allocator.h" 239dcdcdee2582575dd4a2e5857b9f32735763f9c7Howard Hinnant 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttemplate <class S> 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantvoid 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttest(S s) 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const S& cs = s; 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(&cs.front() == &cs[0]); 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(&s.front() == &s[0]); 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant s.front() = typename S::value_type('z'); 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(s.front() == typename S::value_type('z')); 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 379dcdcdee2582575dd4a2e5857b9f32735763f9c7Howard Hinnant { 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::string S; 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test(S("1")); 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test(S("1234567890123456789012345678901234567890")); 419dcdcdee2582575dd4a2e5857b9f32735763f9c7Howard Hinnant } 429dcdcdee2582575dd4a2e5857b9f32735763f9c7Howard Hinnant#if __cplusplus >= 201103L 439dcdcdee2582575dd4a2e5857b9f32735763f9c7Howard Hinnant { 449dcdcdee2582575dd4a2e5857b9f32735763f9c7Howard Hinnant typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; 459dcdcdee2582575dd4a2e5857b9f32735763f9c7Howard Hinnant test(S("1")); 469dcdcdee2582575dd4a2e5857b9f32735763f9c7Howard Hinnant test(S("1234567890123456789012345678901234567890")); 479dcdcdee2582575dd4a2e5857b9f32735763f9c7Howard Hinnant } 489dcdcdee2582575dd4a2e5857b9f32735763f9c7Howard Hinnant#endif 495e57142c5902c3f73a6fdcb8cab55e88ffb43a56Howard Hinnant#ifdef _LIBCPP_DEBUG 50499cea12bb2b1c440f28274227d9fd98cd1c609eHoward Hinnant { 51499cea12bb2b1c440f28274227d9fd98cd1c609eHoward Hinnant std::string s; 52499cea12bb2b1c440f28274227d9fd98cd1c609eHoward Hinnant char c = s.front(); 53499cea12bb2b1c440f28274227d9fd98cd1c609eHoward Hinnant assert(false); 54499cea12bb2b1c440f28274227d9fd98cd1c609eHoward Hinnant } 55499cea12bb2b1c440f28274227d9fd98cd1c609eHoward Hinnant#endif 56bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 57