afarah1

/*
 * perlin.c - create an image of Perlin (gradient) noise
 *
 * Compilling:
 * gcc perlin.c -std=c99 -O3 -Wall -Wextra -Werror -fopenmp -lgomp
 *
 * Doc:
 * ./a.out --help
 *
 * Thanks to:

afarah1

/* A simple logging macro and some wrappers */

#pragma once

/*
 * The following requirements are for the "DEBUG" mode, which flushes
 * everything to disk after each msg and syncs. If you do not wish this
 * behaviour, which will incur in significant performance loss for "DEBUG"
 * mode, remove these guards and edit the LOGGING macro, removing the fflush
 * and fsync calls.

afarah1

#!/bin/bash
#
# mplayerp - Use mplayer+bash as a full-featured music player
#
# Starts mplayer in slave mode listening to commands from a fifo and reading
# media from a playlist file. There are some extras to make it pleasent to use.
#
# Syntax: mplayerp [OPTIONS] [ACTION | DIR]
#
# Options:

afarah1

#!/bin/sh
# Simple offline client for tldr pages
#
# Usage:
# tldr command
#
# Updating offline page cache:
# tldr --update

pf=${HOME}/.cache/tldr/pages

afarah1

/*
 * Don't repeat yourself - Go-like parameters for C
 *
 * Before DRY:
 *
 * foo(int i, double x, double y, struct planet const *p1, struct planet const
 *     *p2, struct planet const *p3, int j)
 *
 * After DRY:
 *

afarah1

CC=gcc
STD=-std=c99
WARN=-Wall -Wextra -Wpedantic -Wformat-security -Wfloat-equal -Wshadow\
     -Wconversion -Winline -Wpadded
OPT=-O2 -march=native -ffinite-math-only -fno-signed-zeros
DBG=-O0 -g -ggdb
EXTRA=
LINK=
FLAGS=$(STD) $(WARN) $(OPT) $(EXTRA) $(LINK)

afarah1

/*
 * ./this width height topRGB bottomRGB
 * ./this 400 400 FFFF00 000000 | feh -
 */
#include <stdio.h>
#include <stdlib.h>

int
main(int argc, char **argv)
{

afarah1

/*
 * ./this width height topRGB bottomRGB [circleSizeDivFactor=4]
 * ./this 800 600 FFFFFF 000000 | feh -
 */
#include <math.h>
#include <stdio.h>
#include <stdlib.h>

#define PRINT(c) do { printf("%d %d %d ", c >> 16, c >> 8 & 0xFF, c & 0xFF); } while(0)
#define IN_CIRCLE(x, y) ((i - y) * (i - y) + (j - x) * (j - x) <= r*r)

afarah1

#include <stdio.h>
#include <assert.h>
#include <math.h>
#include <stdbool.h>

#define N 4

static bool
double_equal(double a, double b, double epsilon)
{