/usr/include/allegro/base.h is in liballegro4-dev 2:4.4.2-7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* /\ _ \ /\_ \ /\_ \
* \ \ \L\ \\//\ \ \//\ \ __ __ _ __ ___
* \ \ __ \ \ \ \ \ \ \ /'__`\ /'_ `\/\`'__\/ __`\
* \ \ \/\ \ \_\ \_ \_\ \_/\ __//\ \L\ \ \ \//\ \L\ \
* \ \_\ \_\/\____\/\____\ \____\ \____ \ \_\\ \____/
* \/_/\/_/\/____/\/____/\/____/\/___L\ \/_/ \/___/
* /\____/
* \_/__/
*
* Base header, defines basic stuff needed by pretty much
* everything else.
*
* By Shawn Hargreaves.
*
* See readme.txt for copyright information.
*/
#ifndef ALLEGRO_BASE_H
#define ALLEGRO_BASE_H
#ifndef ALLEGRO_NO_STD_HEADERS
#include <errno.h>
#include <limits.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
#endif
#if (defined DEBUGMODE) && (defined FORTIFY)
#include <fortify/fortify.h>
#endif
#if (defined DEBUGMODE) && (defined DMALLOC)
#include <dmalloc.h>
#endif
#include "internal/alconfig.h"
#ifdef __cplusplus
extern "C" {
#endif
#define ALLEGRO_VERSION 4
#define ALLEGRO_SUB_VERSION 4
#define ALLEGRO_WIP_VERSION 2
#define ALLEGRO_VERSION_STR "4.4.2"
#define ALLEGRO_DATE_STR "2011"
#define ALLEGRO_DATE 20110519 /* yyyymmdd */
/*******************************************/
/************ Some global stuff ************/
/*******************************************/
/* Asm build disabled as of 4.3.10+. */
#ifndef ALLEGRO_NO_ASM
#define ALLEGRO_NO_ASM
#endif
#ifndef TRUE
#define TRUE -1
#define FALSE 0
#endif
#undef MIN
#undef MAX
#undef MID
#define MIN(x,y) (((x) < (y)) ? (x) : (y))
#define MAX(x,y) (((x) > (y)) ? (x) : (y))
/* Returns the median of x, y, z */
#define MID(x,y,z) ((x) > (y) ? ((y) > (z) ? (y) : ((x) > (z) ? \
(z) : (x))) : ((y) > (z) ? ((z) > (x) ? (z) : \
(x)): (y)))
/* Optimized version of MID for when x <= z. */
#define CLAMP(x,y,z) MAX((x), MIN((y), (z)))
#undef ABS
#define ABS(x) (((x) >= 0) ? (x) : (-(x)))
#undef SGN
#define SGN(x) (((x) >= 0) ? 1 : -1)
#define AL_PI 3.14159265358979323846
#define AL_ID(a,b,c,d) (((a)<<24) | ((b)<<16) | ((c)<<8) | (d))
AL_VAR(int *, allegro_errno);
typedef struct _DRIVER_INFO /* info about a hardware driver */
{
int id; /* integer ID */
void *driver; /* the driver structure */
int autodetect; /* set to allow autodetection */
} _DRIVER_INFO;
#ifdef __cplusplus
}
#endif
#endif /* ifndef ALLEGRO_BASE_H */
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