Jake Egan 1cf4113952 [libcxx][AIX] Switch build compiler to clang
This patch switches the build compiler for AIX from ibm-clang to clang. ibm-clang++_r has `-pthread` by default, but clang for AIX doesn't, so `-pthread` had to be added to the test config. A bunch of tests now pass, so the `XFAIL` was removed. This patch also switch the build to use the visibility support available in clang-15 to control symbols exported by the shared library (AIX traditionally uses explicit export lists for this purpose).

Reviewed By: #libc, #libc_abi, daltenty, #libunwind, ldionne

Differential Revision: https://reviews.llvm.org/D127470
2022-06-13 21:45:18 -04:00

60 lines
1.2 KiB
C++

//===----------------------------------------------------------------------===//
//
// 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>
// reverse_iterator rbegin(); // constexpr since C++20
// const_reverse_iterator rbegin() const; // constexpr since C++20
#include <string>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"
template <class S>
TEST_CONSTEXPR_CXX20 void
test(S s)
{
const S& cs = s;
typename S::reverse_iterator b = s.rbegin();
typename S::const_reverse_iterator cb = cs.rbegin();
if (!s.empty())
{
assert(*b == s.back());
}
assert(b == cb);
}
TEST_CONSTEXPR_CXX20 bool test() {
{
typedef std::string S;
test(S());
test(S("123"));
}
#if TEST_STD_VER >= 11
{
typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
test(S());
test(S("123"));
}
#endif
return true;
}
int main(int, char**)
{
test();
#if TEST_STD_VER > 17
static_assert(test());
#endif
return 0;
}