f56dfb78aa
First, fix a collision with the Point type from MacTypes.h, which was reported on Slack, 2022-07-31: https://cpplang.slack.com/archives/C2X659D1B/p1659284691275889 Second, rename the meta:: namespace to types::. OSX's "/usr/include/ncurses.h" defines a `meta` function, and is (for some reason) included in "<SDK>/usr/include/module.modulemap", so that identifier is off-limits for us to use in anything that compiles with -fmodules: libcxx/test/support/type_algorithms.h:16:11: error: redefinition of 'meta' as different kind of symbol namespace meta { ^ <SDK>/usr/include/ncurses.h:603:28: note: previous definition is here extern NCURSES_EXPORT(int) meta (WINDOW *,bool); /* implemented */ ^ Finally, add a CI configuration for modules on OS X to make sure it does not regress. Differential Revision: https://reviews.llvm.org/D144915
93 lines
2.1 KiB
C++
93 lines
2.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <string>
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// const_reference at(size_type pos) const; // constexpr since C++20
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// reference at(size_type pos); // constexpr since C++20
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#include <string>
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#include <stdexcept>
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#include <cassert>
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#include "min_allocator.h"
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#include "make_string.h"
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#include "test_macros.h"
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#include "type_algorithms.h"
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template <class S>
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TEST_CONSTEXPR_CXX20 void
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test(S s, typename S::size_type pos)
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{
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const S& cs = s;
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if (pos < s.size())
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{
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assert(s.at(pos) == s[pos]);
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assert(cs.at(pos) == cs[pos]);
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}
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#ifndef TEST_HAS_NO_EXCEPTIONS
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else if (!TEST_IS_CONSTANT_EVALUATED)
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{
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try
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{
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TEST_IGNORE_NODISCARD s.at(pos);
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assert(false);
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}
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catch (std::out_of_range&)
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{
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assert(pos >= s.size());
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}
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try
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{
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TEST_IGNORE_NODISCARD cs.at(pos);
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assert(false);
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}
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catch (std::out_of_range&)
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{
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assert(pos >= s.size());
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}
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}
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#endif
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}
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template <class S>
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TEST_CONSTEXPR_CXX20 void test_string() {
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test(S(), 0);
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test(S(MAKE_CSTRING(typename S::value_type, "123")), 0);
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test(S(MAKE_CSTRING(typename S::value_type, "123")), 1);
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test(S(MAKE_CSTRING(typename S::value_type, "123")), 2);
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test(S(MAKE_CSTRING(typename S::value_type, "123")), 3);
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}
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struct TestCaller {
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template <class T>
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TEST_CONSTEXPR_CXX20 void operator()() {
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test_string<std::basic_string<T> >();
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#if TEST_STD_VER >= 11
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test_string<std::basic_string<T, std::char_traits<T>, min_allocator<T> > >();
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#endif
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}
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};
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TEST_CONSTEXPR_CXX20 bool test() {
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types::for_each(types::character_types(), TestCaller());
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return true;
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}
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int main(int, char**)
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{
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test();
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#if TEST_STD_VER > 17
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static_assert(test());
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#endif
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return 0;
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}
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