#### errno.h2.9 KB Permalink History Raw

 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495 ``````/* Copyright (C) 1991,92,93,94,95,96,97,2002 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ /* * ISO C99 Standard: 7.5 Errors */ #ifndef _ERRNO_H /* The includer defined __need_Emath if he wants only the definitions of EDOM and ERANGE, and not everything else. */ #ifndef __need_Emath # define _ERRNO_H 1 # include #endif __BEGIN_DECLS /* Get the error number constants from the system-specific file. This file will test __need_Emath and _ERRNO_H. */ #include #undef __need_Emath #ifdef _ERRNO_H /* Declare the `errno' variable, unless it's defined as a macro by bits/errno.h. This is the case in GNU, where it is a per-thread variable. This redeclaration using the macro still works, but it will be a function declaration without a prototype and may trigger a -Wstrict-prototypes warning. */ #ifndef errno extern int errno; #endif #ifdef _LIBC # ifdef __UCLIBC_HAS___PROGNAME__ extern const char *__progname, *__progname_full; # endif #endif #if defined __USE_GNU && defined __UCLIBC_HAS_PROGRAM_INVOCATION_NAME__ /* The full and simple forms of the name with which the program was invoked. These variables are set up automatically at startup based on the value of ARGV[0] (this works only if you use GNU ld). */ extern const char *program_invocation_name, *program_invocation_short_name; #endif /* __USE_GNU */ #endif /* _ERRNO_H */ __END_DECLS #ifdef _LIBC #ifdef IS_IN_rtld # undef errno # define errno _dl_errno extern int _dl_errno; /* attribute_hidden */ #elif defined __UCLIBC_HAS_TLS__ # if !defined NOT_IN_libc || defined IS_IN_libpthread # undef errno # define errno errno /* For #ifndef errno tests. */ extern __thread int errno attribute_tls_model_ie; # endif #endif #ifndef __set_errno #define __set_errno(val) (errno = (val)) #endif #endif /* _LIBC */ #endif /* _ERRNO_H */ /* The Hurd defines `error_t' as an enumerated type so that printing `error_t' values in the debugger shows the names. We might need this definition sometimes even if this file was included before. */ #if defined __USE_GNU || defined __need_error_t # ifndef __error_t_defined typedef int error_t; # define __error_t_defined 1 # endif # undef __need_error_t #endif ``````