Revision c14639f7b14d3d856c7c1f6c097dd1cb9615a5d0 authored by Junio C Hamano on 12 November 2008, 23:03:03 UTC, committed by Junio C Hamano on 12 November 2008, 23:03:03 UTC
Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent a1e4760
test-genrandom.c
/*
* Simple random data generator used to create reproducible test files.
* This is inspired from POSIX.1-2001 implementation example for rand().
* Copyright (C) 2007 by Nicolas Pitre, licensed under the GPL version 2.
*/
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char *argv[])
{
unsigned long count, next = 0;
unsigned char *c;
if (argc < 2 || argc > 3) {
fprintf( stderr, "Usage: %s <seed_string> [<size>]", argv[0]);
return 1;
}
c = (unsigned char *) argv[1];
do {
next = next * 11 + *c;
} while (*c++);
count = (argc == 3) ? strtoul(argv[2], NULL, 0) : -1L;
while (count--) {
next = next * 1103515245 + 12345;
if (putchar((next >> 16) & 0xff) == EOF)
return -1;
}
return 0;
}
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