2 //===----------------------------------------------------------------------===//
4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5 // See https://llvm.org/LICENSE.txt for license information.
6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
8 //===----------------------------------------------------------------------===//
10 #ifndef _LIBCPP_CSIGNAL
11 #define _LIBCPP_CSIGNAL
35 void (*signal(int sig, void (*func)(int)))(int);
42 #include <__assert> // all public C++ headers provide the assertion handler
45 // <signal.h> is not provided by libc++
46 #if __has_include(<signal.h>)
48 # ifdef _LIBCPP_SIGNAL_H
49 # error "If libc++ starts defining <signal.h>, the __has_include check should move to libc++'s <signal.h>"
53 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
54 # pragma GCC system_header
57 _LIBCPP_BEGIN_NAMESPACE_STD
59 using ::sig_atomic_t _LIBCPP_USING_IF_EXISTS;
60 using ::signal _LIBCPP_USING_IF_EXISTS;
61 using ::raise _LIBCPP_USING_IF_EXISTS;
63 _LIBCPP_END_NAMESPACE_STD
65 #endif // _LIBCPP_CSIGNAL