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annotate lib/sys_time.in.h @ 40057:b06060465f09

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maint: Run 'make update-copyright'
author Paul Eggert <eggert@cs.ucla.edu>
date Tue, 01 Jan 2019 00:25:11 +0100
parents 10eb9086bea0
children
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1 /* Provide a more complete sys/time.h.
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2
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3 Copyright (C) 2007-2019 Free Software Foundation, Inc.
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4
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5 This program is free software; you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 2, or (at your option)
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8 any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program; if not, see <https://www.gnu.org/licenses/>. */
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17
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18 /* Written by Paul Eggert. */
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19
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20 #ifndef _@GUARD_PREFIX@_SYS_TIME_H
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21
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22 #if __GNUC__ >= 3
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23 @PRAGMA_SYSTEM_HEADER@
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24 #endif
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25 @PRAGMA_COLUMNS@
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26
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27 /* On Cygwin and on many BSDish systems, <sys/time.h> includes itself
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28 recursively via <sys/select.h>.
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29 Simply delegate to the system's header in this case; it is a no-op.
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30 Without this extra ifdef, the C++ gettimeofday declaration below
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31 would be a forward declaration in gnulib's nested <sys/time.h>. */
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32 #if defined _CYGWIN_SYS_TIME_H || defined _SYS_TIME_H || defined _SYS_TIME_H_
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33 # @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@
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34 #else
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35
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36 /* The include_next requires a split double-inclusion guard. */
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37 #if @HAVE_SYS_TIME_H@
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38 # @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@
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39 #endif
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41 #ifndef _@GUARD_PREFIX@_SYS_TIME_H
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42 #define _@GUARD_PREFIX@_SYS_TIME_H
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44 #if ! @HAVE_SYS_TIME_H@
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45 # include <time.h>
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46 #endif
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47
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48 /* On native Windows with MSVC, get the 'struct timeval' type.
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49 Also, on native Windows with a 64-bit time_t, where we are overriding the
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50 'struct timeval' type, get all declarations of system functions whose
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51 signature contains 'struct timeval'. */
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52 #if (defined _MSC_VER || @REPLACE_STRUCT_TIMEVAL@) && @HAVE_WINSOCK2_H@ && !defined _GL_INCLUDING_WINSOCK2_H
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53 # define _GL_INCLUDING_WINSOCK2_H
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54 # include <winsock2.h>
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55 # undef _GL_INCLUDING_WINSOCK2_H
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56 #endif
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57
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58 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
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59
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60 /* The definition of _GL_ARG_NONNULL is copied here. */
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61
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62 /* The definition of _GL_WARN_ON_USE is copied here. */
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63
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64 #ifdef __cplusplus
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65 extern "C" {
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66 #endif
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67
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68 #if !@HAVE_STRUCT_TIMEVAL@ || @REPLACE_STRUCT_TIMEVAL@
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69
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70 # if @REPLACE_STRUCT_TIMEVAL@
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71 # define timeval rpl_timeval
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72 # endif
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73
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74 # if !GNULIB_defined_struct_timeval
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75 struct timeval
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76 {
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77 time_t tv_sec;
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78 long int tv_usec;
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79 };
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80 # define GNULIB_defined_struct_timeval 1
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81 # endif
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82
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83 #endif
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84
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85 #ifdef __cplusplus
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86 }
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87 #endif
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88
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89 #if @GNULIB_GETTIMEOFDAY@
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90 # if @REPLACE_GETTIMEOFDAY@
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91 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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92 # undef gettimeofday
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93 # define gettimeofday rpl_gettimeofday
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94 # endif
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95 _GL_FUNCDECL_RPL (gettimeofday, int,
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96 (struct timeval *restrict, void *restrict)
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97 _GL_ARG_NONNULL ((1)));
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98 _GL_CXXALIAS_RPL (gettimeofday, int,
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99 (struct timeval *restrict, void *restrict));
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100 # else
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101 # if !@HAVE_GETTIMEOFDAY@
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102 _GL_FUNCDECL_SYS (gettimeofday, int,
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103 (struct timeval *restrict, void *restrict)
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104 _GL_ARG_NONNULL ((1)));
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105 # endif
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106 /* Need to cast, because on glibc systems, by default, the second argument is
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107 struct timezone *. */
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108 _GL_CXXALIAS_SYS_CAST (gettimeofday, int,
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109 (struct timeval *restrict, void *restrict));
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110 # endif
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111 _GL_CXXALIASWARN (gettimeofday);
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112 # if defined __cplusplus && defined GNULIB_NAMESPACE
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113 namespace GNULIB_NAMESPACE {
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114 typedef ::timeval
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115 #undef timeval
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116 timeval;
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117 }
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118 # endif
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119 #elif defined GNULIB_POSIXCHECK
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120 # undef gettimeofday
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121 # if HAVE_RAW_DECL_GETTIMEOFDAY
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122 _GL_WARN_ON_USE (gettimeofday, "gettimeofday is unportable - "
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123 "use gnulib module gettimeofday for portability");
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124 # endif
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125 #endif
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126
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127 /* Hide some function declarations from <winsock2.h>. */
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128
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129 #if defined _MSC_VER && @HAVE_WINSOCK2_H@
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130 # if !defined _@GUARD_PREFIX@_UNISTD_H
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131 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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132 # undef close
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133 # define close close_used_without_including_unistd_h
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134 # else
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135 _GL_WARN_ON_USE (close,
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136 "close() used without including <unistd.h>");
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137 # endif
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138 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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139 # undef gethostname
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140 # define gethostname gethostname_used_without_including_unistd_h
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141 # else
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142 _GL_WARN_ON_USE (gethostname,
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143 "gethostname() used without including <unistd.h>");
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144 # endif
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145 # endif
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146 # if !defined _@GUARD_PREFIX@_SYS_SOCKET_H
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147 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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148 # undef socket
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149 # define socket socket_used_without_including_sys_socket_h
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150 # undef connect
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151 # define connect connect_used_without_including_sys_socket_h
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152 # undef accept
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153 # define accept accept_used_without_including_sys_socket_h
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154 # undef bind
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155 # define bind bind_used_without_including_sys_socket_h
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156 # undef getpeername
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157 # define getpeername getpeername_used_without_including_sys_socket_h
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158 # undef getsockname
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159 # define getsockname getsockname_used_without_including_sys_socket_h
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160 # undef getsockopt
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161 # define getsockopt getsockopt_used_without_including_sys_socket_h
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162 # undef listen
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163 # define listen listen_used_without_including_sys_socket_h
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164 # undef recv
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165 # define recv recv_used_without_including_sys_socket_h
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166 # undef send
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167 # define send send_used_without_including_sys_socket_h
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168 # undef recvfrom
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169 # define recvfrom recvfrom_used_without_including_sys_socket_h
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170 # undef sendto
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171 # define sendto sendto_used_without_including_sys_socket_h
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172 # undef setsockopt
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173 # define setsockopt setsockopt_used_without_including_sys_socket_h
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174 # undef shutdown
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175 # define shutdown shutdown_used_without_including_sys_socket_h
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176 # else
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177 _GL_WARN_ON_USE (socket,
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178 "socket() used without including <sys/socket.h>");
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179 _GL_WARN_ON_USE (connect,
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180 "connect() used without including <sys/socket.h>");
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181 _GL_WARN_ON_USE (accept,
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182 "accept() used without including <sys/socket.h>");
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183 _GL_WARN_ON_USE (bind,
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184 "bind() used without including <sys/socket.h>");
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185 _GL_WARN_ON_USE (getpeername,
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186 "getpeername() used without including <sys/socket.h>");
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187 _GL_WARN_ON_USE (getsockname,
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188 "getsockname() used without including <sys/socket.h>");
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189 _GL_WARN_ON_USE (getsockopt,
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190 "getsockopt() used without including <sys/socket.h>");
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191 _GL_WARN_ON_USE (listen,
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192 "listen() used without including <sys/socket.h>");
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193 _GL_WARN_ON_USE (recv,
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194 "recv() used without including <sys/socket.h>");
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195 _GL_WARN_ON_USE (send,
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196 "send() used without including <sys/socket.h>");
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197 _GL_WARN_ON_USE (recvfrom,
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198 "recvfrom() used without including <sys/socket.h>");
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199 _GL_WARN_ON_USE (sendto,
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200 "sendto() used without including <sys/socket.h>");
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201 _GL_WARN_ON_USE (setsockopt,
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202 "setsockopt() used without including <sys/socket.h>");
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203 _GL_WARN_ON_USE (shutdown,
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204 "shutdown() used without including <sys/socket.h>");
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205 # endif
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206 # endif
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207 # if !defined _@GUARD_PREFIX@_SYS_SELECT_H
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208 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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209 # undef select
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210 # define select select_used_without_including_sys_select_h
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211 # else
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212 _GL_WARN_ON_USE (select,
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213 "select() used without including <sys/select.h>");
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214 # endif
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215 # endif
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216 #endif
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217
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218 #endif /* _@GUARD_PREFIX@_SYS_TIME_H */
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219 #endif /* _CYGWIN_SYS_TIME_H */
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220 #endif /* _@GUARD_PREFIX@_SYS_TIME_H */