gnulib/import/strerror-override.h

/* strerror-override.h --- POSIX compatible system error routine

   Copyright (C) 2010-2022 Free Software Foundation, Inc.

   This file 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.

   This file 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 this program.  If not, see <https://www.gnu.org/licenses/>.  */

#ifndef _GL_STRERROR_OVERRIDE_H
# define _GL_STRERROR_OVERRIDE_H

# include <errno.h>
# include <stddef.h>

/* Reasonable buffer size that should never trigger ERANGE; if this
   proves too small, we intentionally abort(), to remind us to fix
   this value.  */
# define STACKBUF_LEN 256

/* If ERRNUM maps to an errno value defined by gnulib, return a string
   describing the error.  Otherwise return NULL.  */
# if REPLACE_STRERROR_0 \
     || GNULIB_defined_ESOCK \
     || GNULIB_defined_ESTREAMS \
     || GNULIB_defined_EWINSOCK \
     || GNULIB_defined_ENOMSG \
     || GNULIB_defined_EIDRM \
     || GNULIB_defined_ENOLINK \
     || GNULIB_defined_EPROTO \
     || GNULIB_defined_EMULTIHOP \
     || GNULIB_defined_EBADMSG \
     || GNULIB_defined_EOVERFLOW \
     || GNULIB_defined_ENOTSUP \
     || GNULIB_defined_ENETRESET \
     || GNULIB_defined_ECONNABORTED \
     || GNULIB_defined_ESTALE \
     || GNULIB_defined_EDQUOT \
     || GNULIB_defined_ECANCELED \
     || GNULIB_defined_EOWNERDEAD \
     || GNULIB_defined_ENOTRECOVERABLE \
     || GNULIB_defined_EILSEQ
extern const char *strerror_override (int errnum) _GL_ATTRIBUTE_CONST;
# else
#  define strerror_override(ignored) NULL
#  define GNULIB_defined_strerror_override_macro 1
# endif

#endif /* _GL_STRERROR_OVERRIDE_H */