common.h

/*
prettysharp
Copyright (C) 2019 John Doty

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 <https://www.gnu.org/licenses/>.
*/
#ifndef COMMON_H
#define COMMON_H

#include <assert.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define UNUSED(x) (void)(x)
#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))

#define ERR_INVALID_ARGS 1
#define ERR_CANNOT_OPEN 2
#define ERR_CANNOT_READ 3
#define ERR_PARSE_ERROR 72

#ifndef __has_attribute      // Optional of course.
#define __has_attribute(x) 0 // Compatibility with non-clang compilers.
#endif

#endif