| //===----------------------------------------------------------------------===// |
| // |
| // 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 charT* data() const; |
| // charT* data(); // C++17 |
| |
| #include <string> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| #include "min_allocator.h" |
| |
| template <class S> |
| void |
| test_const(const S& s) |
| { |
| typedef typename S::traits_type T; |
| const typename S::value_type* str = s.data(); |
| if (s.size() > 0) |
| { |
| assert(T::compare(str, &s[0], s.size()) == 0); |
| assert(T::eq(str[s.size()], typename S::value_type())); |
| } |
| else |
| assert(T::eq(str[0], typename S::value_type())); |
| } |
| |
| template <class S> |
| void |
| test_nonconst(S& s) |
| { |
| typedef typename S::traits_type T; |
| typename S::value_type* str = s.data(); |
| if (s.size() > 0) |
| { |
| assert(T::compare(str, &s[0], s.size()) == 0); |
| assert(T::eq(str[s.size()], typename S::value_type())); |
| } |
| else |
| assert(T::eq(str[0], typename S::value_type())); |
| } |
| |
| int main(int, char**) |
| { |
| { |
| typedef std::string S; |
| test_const(S("")); |
| test_const(S("abcde")); |
| test_const(S("abcdefghij")); |
| test_const(S("abcdefghijklmnopqrst")); |
| } |
| #if TEST_STD_VER >= 11 |
| { |
| typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; |
| test_const(S("")); |
| test_const(S("abcde")); |
| test_const(S("abcdefghij")); |
| test_const(S("abcdefghijklmnopqrst")); |
| } |
| #endif |
| #if TEST_STD_VER > 14 |
| { |
| typedef std::string S; |
| S s1(""); test_nonconst(s1); |
| S s2("abcde"); test_nonconst(s2); |
| S s3("abcdefghij"); test_nonconst(s3); |
| S s4("abcdefghijklmnopqrst"); test_nonconst(s4); |
| } |
| #endif |
| |
| return 0; |
| } |