| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <string> |
| |
| // const_reference at(size_type pos) const; |
| // reference at(size_type pos); |
| |
| // When back-deploying to macosx10.7, the RTTI for exception classes |
| // incorrectly provided by libc++.dylib is mixed with the one in |
| // libc++abi.dylib and exceptions are not caught properly. |
| // XFAIL: with_system_cxx_lib=macosx10.7 |
| |
| #include <string> |
| #include <stdexcept> |
| #include <cassert> |
| |
| #include "min_allocator.h" |
| |
| #include "test_macros.h" |
| |
| template <class S> |
| void |
| test(S s, typename S::size_type pos) |
| { |
| const S& cs = s; |
| if (pos < s.size()) |
| { |
| assert(s.at(pos) == s[pos]); |
| assert(cs.at(pos) == cs[pos]); |
| } |
| #ifndef TEST_HAS_NO_EXCEPTIONS |
| else |
| { |
| try |
| { |
| TEST_IGNORE_NODISCARD s.at(pos); |
| assert(false); |
| } |
| catch (std::out_of_range&) |
| { |
| assert(pos >= s.size()); |
| } |
| try |
| { |
| TEST_IGNORE_NODISCARD cs.at(pos); |
| assert(false); |
| } |
| catch (std::out_of_range&) |
| { |
| assert(pos >= s.size()); |
| } |
| } |
| #endif |
| } |
| |
| int main(int, char**) |
| { |
| { |
| typedef std::string S; |
| test(S(), 0); |
| test(S("123"), 0); |
| test(S("123"), 1); |
| test(S("123"), 2); |
| test(S("123"), 3); |
| } |
| #if TEST_STD_VER >= 11 |
| { |
| typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; |
| test(S(), 0); |
| test(S("123"), 0); |
| test(S("123"), 1); |
| test(S("123"), 2); |
| test(S("123"), 3); |
| } |
| #endif |
| |
| return 0; |
| } |