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#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
43#  include <__cxx03/csignal>
44#else
45#  include <__config>
46
47// <signal.h> is not provided by libc++
48#  if __has_include(<signal.h>)
49#    include <signal.h>
50#    ifdef _LIBCPP_SIGNAL_H
51#      error "If libc++ starts defining <signal.h>, the __has_include check should move to libc++'s <signal.h>"
52#    endif
53#  endif
54
55#  if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
56#    pragma GCC system_header
57#  endif
58
59_LIBCPP_BEGIN_NAMESPACE_STD
60
61using ::sig_atomic_t _LIBCPP_USING_IF_EXISTS;
62using ::signal _LIBCPP_USING_IF_EXISTS;
63using ::raise _LIBCPP_USING_IF_EXISTS;
64
65_LIBCPP_END_NAMESPACE_STD
66
67#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
68
69#endif // _LIBCPP_CSIGNAL