view dev/mk-256bytes.c @ 282:9ee8ad3d4d30

frtest: rm gsmfr-hand-test and gsmfr-max-out utils These hack programs were never properly documented and were written only as part of a debug chase, in pursuit of a bug that ultimately turned out to be in our then-hacky patch to osmo-bts-sysmo, before beginning of proper patches in Osmocom. These hack programs need to be dropped from the present sw package because they depend on old libgsm, and we are eliminating that dependency.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 14 Apr 2024 05:44:47 +0000
parents bbdefd2ef950
children
line wrap: on
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/*
 * This program generates a binary file of 256 bytes, containing every
 * possible octet value in linearly increasing order.  The purpose of this
 * datum is testing of A-linear-A and mu-linear-mu PCM conversions: we need
 * to ensure that each of those sequences is an identity transform for all
 * possible PCM octet values.
 */

#include <stdio.h>
#include <stdlib.h>

main(argc, argv)
	char **argv;
{
	FILE *outf;
	unsigned val;

	if (argc != 2) {
		fprintf(stderr, "usage: %s output-bin-file\n", argv[0]);
		exit(1);
	}
	outf = fopen(argv[1], "w");
	if (!outf) {
		perror(argv[1]);
		exit(1);
	}
	for (val = 0; val < 256; val++)
		putc(val, outf);
	fclose(outf);
	exit(0);
}