Editando: err.h
/* 4.4BSD utility functions for error messages. Copyright (C) 1995-2021 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 <https://www.gnu.org/licenses/>. */ #ifndef _ERR_H #define _ERR_H 1 #include <features.h> #define __need___va_list #include <stdarg.h> #ifndef __GNUC_VA_LIST # define __gnuc_va_list void * #endif __BEGIN_DECLS /* Print "program: ", FORMAT, ": ", the standard error string for errno, and a newline, on stderr. */ extern void warn (const char *__format, ...) __attribute__ ((__format__ (__printf__, 1, 2))); extern void vwarn (const char *__format, __gnuc_va_list) __attribute__ ((__format__ (__printf__, 1, 0))); /* Likewise, but without ": " and the standard error string. */ extern void warnx (const char *__format, ...) __attribute__ ((__format__ (__printf__, 1, 2))); extern void vwarnx (const char *__format, __gnuc_va_list) __attribute__ ((__format__ (__printf__, 1, 0))); /* Likewise, and then exit with STATUS. */ extern void err (int __status, const char *__format, ...) __attribute__ ((__noreturn__, __format__ (__printf__, 2, 3))); extern void verr (int __status, const char *__format, __gnuc_va_list) __attribute__ ((__noreturn__, __format__ (__printf__, 2, 0))); extern void errx (int __status, const char *__format, ...) __attribute__ ((__noreturn__, __format__ (__printf__, 2, 3))); extern void verrx (int __status, const char *, __gnuc_va_list) __attribute__ ((__noreturn__, __format__ (__printf__, 2, 0))); #include <bits/floatn.h> #if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1 # include <bits/err-ldbl.h> #endif __END_DECLS #endif /* err.h */
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