/* sframe-error.c - Error messages.    Copyright (C) 2022-2026 Free Software Foundation, Inc.    This file is part of libsframe.    This program is free software; you can redistribute it and/or modify   it under the terms of the GNU General Public License as published by   the Free Software Foundation; either version 3 of the License, or   (at your option) any later version.    This program 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 General Public License for more details.    You should have received a copy of the GNU General Public License   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */ #include "sframe-api.h"#include <stddef.h>#include <string.h> /* In this file, we want to treat the first item of the SFrame error   macro like subsequent items.  */#define _SFRAME_FIRST(NAME, VALUE) _SFRAME_ITEM(NAME, VALUE) /* The error message strings, each in a unique structure member precisely big   enough for that error, plus a str member to access them all as a string   table.  */ static const char *const _sframe_errlist[] = {#define _SFRAME_ITEM(n, s) s,_SFRAME_ERRORS#undef _SFRAME_ITEM}; const char *sframe_errmsg (int error){  const char *str;   if (error >= SFRAME_ERR_BASE && (error - SFRAME_ERR_BASE) < SFRAME_ERR_NERR)    str = _sframe_errlist[error - SFRAME_ERR_BASE];  else    str = (const char *) strerror (error);   return (str ? str : "Unknown error");}