Arthur O'Dwyer f56dfb78aa [libc++] Fix modules issues on OS X
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
2023-03-01 10:33:40 -05:00

71 lines
1.9 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
//
//===----------------------------------------------------------------------===//
// bool isfinite(floating-point-type x); // constexpr since C++23
// We don't control the implementation on windows
// UNSUPPORTED: windows
#include <cassert>
#include <cmath>
#include <limits>
#include "test_macros.h"
#include "type_algorithms.h"
struct TestFloat {
template <class T>
static TEST_CONSTEXPR_CXX23 bool test() {
assert(!std::isinf(std::numeric_limits<T>::max()));
assert(std::isinf(std::numeric_limits<T>::infinity()));
assert(!std::isinf(std::numeric_limits<T>::min()));
assert(!std::isinf(std::numeric_limits<T>::denorm_min()));
assert(!std::isinf(std::numeric_limits<T>::lowest()));
assert(std::isinf(-std::numeric_limits<T>::infinity()));
assert(!std::isinf(T(0)));
assert(!std::isinf(std::numeric_limits<T>::quiet_NaN()));
assert(!std::isinf(std::numeric_limits<T>::signaling_NaN()));
return true;
}
template <class T>
TEST_CONSTEXPR_CXX23 void operator()() {
test<T>();
#if TEST_STD_VER >= 23
static_assert(test<T>());
#endif
}
};
struct TestInt {
template <class T>
static TEST_CONSTEXPR_CXX23 bool test() {
assert(!std::isinf(std::numeric_limits<T>::max()));
assert(!std::isinf(std::numeric_limits<T>::lowest()));
assert(!std::isinf(T(0)));
return true;
}
template <class T>
TEST_CONSTEXPR_CXX23 void operator()() {
test<T>();
#if TEST_STD_VER >= 23
static_assert(test<T>());
#endif
}
};
int main(int, char**) {
types::for_each(types::floating_point_types(), TestFloat());
types::for_each(types::integral_types(), TestInt());
return 0;
}