[minimal.git] / stdlib.h

/* Minimal - the simplest thing that could possibly work
 * Copyright (C) 2007  Jay Freeman (saurik)
*/

/*
 *        Redistribution and use in source and binary
 * forms, with or without modification, are permitted
 * provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the
 *    above copyright notice, this list of conditions
 *    and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the
 *    above copyright notice, this list of conditions
 *    and the following disclaimer in the documentation
 *    and/or other materials provided with the
 *    distribution.
 * 3. The name of the author may not be used to endorse
 *    or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef MINIMAL_STDLIB_H
#define MINIMAL_STDLIB_H

#define _assert(expr) \
    do if (!(expr)) { \
        fprintf(stderr, "%s(%u): _assert(%u:%s)\n", __FILE__, __LINE__, errno, #expr); \
        exit(1); \
    } while (false)

#define _syscall(expr) \
    do if ((long) (expr) != -1) \
        break; \
    else switch (errno) { \
        case EINTR: \
            continue; \
        default: \
            _assert(false); \
    } while (true)

#define _forever \
    for (;;)

#define _trace() \
    printf("_trace(%s:%u)\n", __FILE__, __LINE__)

#define _not(type) \
    ((type) ~ (type) 0)

#define _breakpoint() \
    __asm__ { int 0x3 }

#define _disused \
    __attribute__((unused))

#include <errno.h>
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdint.h>

#endif/*MINIMAL_STDLIB_H*/
Commit	Line	Data
ee9c93b9 JF	1	/* Minimal - the simplest thing that could possibly work
	2	* Copyright (C) 2007 Jay Freeman (saurik)
	3	*/
	4
	5	/*
	6	* Redistribution and use in source and binary
	7	* forms, with or without modification, are permitted
	8	* provided that the following conditions are met:
	9	*
	10	* 1. Redistributions of source code must retain the
	11	* above copyright notice, this list of conditions
	12	* and the following disclaimer.
	13	* 2. Redistributions in binary form must reproduce the
	14	* above copyright notice, this list of conditions
	15	* and the following disclaimer in the documentation
	16	* and/or other materials provided with the
	17	* distribution.
	18	* 3. The name of the author may not be used to endorse
	19	* or promote products derived from this software
	20	* without specific prior written permission.
	21	*
	22	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
	23	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
	24	* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
	25	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	26	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
	27	* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	28	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	29	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
	30	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	31	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
	32	* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
	33	* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
	34	* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
	35	* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	36	*/
	37
64c5d5aa JF	38	#ifndef MINIMAL_STDLIB_H
	39	#define MINIMAL_STDLIB_H
	40
d4987f7d JF	41	#define _assert(expr) \
d4987f7d JF	42	do if (!(expr)) { \
3ed54889	43	fprintf(stderr, "%s(%u): _assert(%u:%s)\n", __FILE__, __LINE__, errno, #expr); \
d4987f7d JF	44	exit(1); \
	45	} while (false)
	46
	47	#define _syscall(expr) \
	48	do if ((long) (expr) != -1) \
	49	break; \
	50	else switch (errno) { \
	51	case EINTR: \
	52	continue; \
	53	default: \
	54	_assert(false); \
	55	} while (true)
	56
	57	#define _forever \
	58	for (;;)
	59
	60	#define _trace() \
	61	printf("_trace(%s:%u)\n", __FILE__, __LINE__)
	62
3ed54889 JF	63	#define _not(type) \
	64	((type) ~ (type) 0)
	65
2b559b76 JF	66	#define _breakpoint() \
	67	__asm__ { int 0x3 }
	68
64c5d5aa	69	#define _disused \
2b559b76 JF	70	__attribute__((unused))
2b559b76 JF	71
20363569	72	#include <errno.h>
d4987f7d JF	73	#include <stdio.h>
	74	#include <stdbool.h>
	75	#include <stdlib.h>
	76	#include <stdint.h>
64c5d5aa JF	77
64c5d5aa JF	78	#endif/MINIMAL_STDLIB_H/