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/* bitfield.h - bitfield macros */
/*
 * PUBLIC DOMAIN - NO COPYRIGHT CLAIMED - Jonathan Mayo - July 2005
 *
 * Updated January 2010
 */

#ifndef BITFIELD_H
#define BITFIELD_H
#include <limits.h>

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/* showif.c : PUBLIC DOMAIN - Jon Mayo - August 22, 2006
 * - You may remove any comments you wish, modify this code any way you wish,
 *   and distribute any way you wish.*/
/* finds all network interfaces and shows a little information about them.
 * some operating systems list interfaces multiple times because of different
 * flags, modes, etc. if you want to use this code you should be aware that
 * duplicate interfaces is a possibility */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

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/* Montgomery's Ladder Technique
 * http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.5.4956&rep=rep1&type=pdf
 */
#include <stdio.h>
#include <limits.h>

static unsigned long long ipow(unsigned g, unsigned k)
{
        unsigned long long r0, r1;
        unsigned j;

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/* This software is public domain. No copyright is claimed.
 * Jon Mayo April 2011
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

/* Load an .ini format file
 * filename - path to a file
 * report - callback can return non-zero to stop, the callback error code is

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#define _XOPEN_SOURCE 700
#include <sys/select.h>

static void copyfdset(fd_set *d, fd_set *s, unsigned fd_max) {
        unsigned i;
        unsigned n = (fd_max + 1 + __NFDBITS - 1) / __NFDBITS;
        for(i = 0; i < n; i++) {
                d->fds_bits[i] = s->fds_bits[i];
        }
}

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/* a complicated set of macros to support empty __VA_ARGS__ macros.
 * example:
 * pr_dbg("Check\n");
 * pr_dbg("Check %d\n", 12);
 * pr_dbg("Check %d %s %d\n", 42, "Hello", 99);
 *
 * pr_info() and pr_err() macros don't use __func__ and __LINE__
 */
#ifndef DEBUG_H
#define DEBUG_H

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/* otadd0.c : add without using +,++ or -,-- */
/* clean:
int add(int a, int b)
{
        int r,n,c;
        for(r=c=0,n=1;n;n<<=1) {
                c = (a & b) ^ (c & (a ^ b));
                c <<= 1;
                r |= (a ^ b ^ c) & n;
        }

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/* bench.c : XOR pattern without any display/output to get a baseline benchmark */
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>

#define BGRX8888(r, g, b) \
	((uint32_t)((unsigned char)(b)) << 24 | \
	(uint32_t)((unsigned char)(g)) << 16 | \

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Program = _ (DeclareVar | Function	{ printf("good\n"); }
| .					{ printf("bad\n"); exit(1); }
)*
| !.					{ printf("done\n"); exit(0); }
DeclareVar = type VarInit ( "," _ VarInit )* ";" _
VarInit = identifier ( "=" _ Expression )?
Function = t:type i:identifier "(" _ Parameters? ")" _ Compound	{
	printf("Function:\n");
	value_print(t);

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/* cube_vbo.c - demo of drawing a cube in GL using VBOs.
 *
 * PUBLIC DOMAIN - Jon Mayo - April 24, 2015
 *
 * Requires SDL2
 *
 * To build:
 * gcc -Wall -W -o cube_vbo cube_vbo.c `pkg-config --libs --cflags sdl2 gl`
 *
 */