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49 lines
1 KiB
C
49 lines
1 KiB
C
/* impl.c.testlib: Test library
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*
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* $HopeName: MMsrc!testlib.c(trunk.8) $
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*
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* Copyright (C) 1995, 1998 Harlequin Group, all rights reserved
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*
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* .purpose: A library of functions that may be of use to unit tests.
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*/
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#include "mps.h"
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#include "testlib.h"
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#ifdef MPS_OS_SU
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#include "ossu.h"
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#endif
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#include <math.h>
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#include <stdio.h>
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#include <stdlib.h>
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/* rnd -- a random number generator
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*
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* I nabbed it from "ML for the Working Programmer"
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* Originally from:
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* Stephen K Park & Keith W Miller (1988). Random number generators:
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* good one are to find. Communications of the ACM, 31:1192-1201
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*/
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unsigned long rnd(void)
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{
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static unsigned long seed = 1;
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double s;
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s = seed;
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s *= 16807.0;
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s = fmod(s, 2147483647.0); /* 2^31 - 1 */
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seed = (unsigned long)s;
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return seed;
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}
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/* die -- Test a return code, and exit on error */
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void die(mps_res_t res, const char *s)
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{
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if(res != MPS_RES_OK)
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{
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fflush(stdout); /* synchronize */
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fprintf(stderr, "\n%s: %d\n", s, res);
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exit(1);
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}
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}
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