Mark de Wever fb855eb941 [libc++] Qualifies size_t.
This has been done using the following command

  find libcxx/test -type f -exec perl -pi -e 's|^([^/]+?)((?<!::)size_t)|\1std::\2|' \{} \;

And manually removed some false positives in std/depr/depr.c.headers.

The `std` module doesn't export `::size_t`, this is a preparation for that module.

Reviewed By: ldionne, #libc, EricWF, philnik

Differential Revision: https://reviews.llvm.org/D146088
2023-03-21 17:41:36 +01:00

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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// <functional>
// Hashing a struct w/o a defined hash should fail.
#include <functional>
#include <cassert>
#include <type_traits>
struct X {};
int main(int, char**)
{
X x;
std::size_t h = std::hash<X>{} ( x );
return 0;
}