FreeCalypso > hg > gsm-codec-lib

annotate dev/mk-256bytes.c @ 483:4f13db3a7086

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doc/Utils-overview: document new utilities
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 20 May 2024 01:26:12 +0000
parents bbdefd2ef950
children
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bbdefd2ef950 dev: new program mk-256bytes
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
bbdefd2ef950 dev: new program mk-256bytes
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2 * This program generates a binary file of 256 bytes, containing every
bbdefd2ef950 dev: new program mk-256bytes
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3 * possible octet value in linearly increasing order. The purpose of this
bbdefd2ef950 dev: new program mk-256bytes
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4 * datum is testing of A-linear-A and mu-linear-mu PCM conversions: we need
bbdefd2ef950 dev: new program mk-256bytes
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5 * to ensure that each of those sequences is an identity transform for all
bbdefd2ef950 dev: new program mk-256bytes
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6 * possible PCM octet values.
bbdefd2ef950 dev: new program mk-256bytes
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7 */
bbdefd2ef950 dev: new program mk-256bytes
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8
bbdefd2ef950 dev: new program mk-256bytes
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9 #include <stdio.h>
bbdefd2ef950 dev: new program mk-256bytes
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10 #include <stdlib.h>
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11
bbdefd2ef950 dev: new program mk-256bytes
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12 main(argc, argv)
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13 char **argv;
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14 {
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15 FILE *outf;
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16 unsigned val;
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17
bbdefd2ef950 dev: new program mk-256bytes
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18 if (argc != 2) {
bbdefd2ef950 dev: new program mk-256bytes
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19 fprintf(stderr, "usage: %s output-bin-file\n", argv[0]);
bbdefd2ef950 dev: new program mk-256bytes
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20 exit(1);
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21 }
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22 outf = fopen(argv[1], "w");
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23 if (!outf) {
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24 perror(argv[1]);
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25 exit(1);
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26 }
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27 for (val = 0; val < 256; val++)
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28 putc(val, outf);
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29 fclose(outf);
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30 exit(0);
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31 }