1// -*- C++ -*-
2//===----------------------------------------------------------------------===//
3//
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
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef _LIBCPP_CSIGNAL
11#define _LIBCPP_CSIGNAL
12
13/*
14    csignal synopsis
15
16Macros:
17
18    SIG_DFL
19    SIG_ERR
20    SIG_IGN
21    SIGABRT
22    SIGFPE
23    SIGILL
24    SIGINT
25    SIGSEGV
26    SIGTERM
27
28namespace std
29{
30
31Types:
32
33    sig_atomic_t
34
35void (*signal(int sig, void (*func)(int)))(int);
36int raise(int sig);
37
38}  // std
39
40*/
41
42#include <__assert> // all public C++ headers provide the assertion handler
43#include <__config>
44
45// <signal.h> is not provided by libc++
46#if __has_include(<signal.h>)
47#  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>"
50#  endif
51#endif
52
53#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
54#  pragma GCC system_header
55#endif
56
57_LIBCPP_BEGIN_NAMESPACE_STD
58
59using ::sig_atomic_t _LIBCPP_USING_IF_EXISTS;
60using ::signal _LIBCPP_USING_IF_EXISTS;
61using ::raise _LIBCPP_USING_IF_EXISTS;
62
63_LIBCPP_END_NAMESPACE_STD
64
65#endif // _LIBCPP_CSIGNAL
66