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SGI Developer Toolbox 6.1
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SGI Developer Toolbox 6.1 - Disc 4.iso
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myutils.c
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C/C++ Source or Header
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1994-08-01
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2KB
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78 lines
/*
* Copyright (C) 1994, Silicon Graphics, Inc.
* All Rights Reserved.
*
* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics, Inc.;
* the contents of this file may not be disclosed to third parties, copied or
* duplicated in any form, in whole or in part, without the prior written
* permission of Silicon Graphics, Inc.
*
* RESTRICTED RIGHTS LEGEND:
* Use, duplication or disclosure by the Government is subject to restrictions
* as set forth in subdivision (c)(1)(ii) of the Rights in Technical Data
* and Computer Software clause at DFARS 252.227-7013, and/or in similar or
* successor clauses in the FAR, DOD or NASA FAR Supplement. Unpublished -
* rights reserved under the Copyright Laws of the United States.
*/
/*
* utils.c utility routines and functions like itoa
*/
#include <string.h>
void reverse(char s[])
{
int c, i, j;
for (i=0, j = strlen(s)-1; i<j; i++, j--){
c = s[i];
s[i] = s[j];
s[j] = c;
}
}
void itoa (int n, char s[]) /* see K&R */
{
int i, sign;
if (( sign = n) < 0)
n = -n;
i=0;
do {
s[i++] = n % 10 + '0';
} while (( n /= 10) > 0);
if (sign < 0)
s[i++] = '-';
s[i] = '\0';
reverse(s);
}
void minmaxtorangeval(min,max,range,val)
int min;
int max;
int *range;
int *val;
{
/* min max to range val conversion: */
*range = (max-min)/2;
*val = (min+(*range));
#ifdef DEBUG
printf("min,max,range,val = %d %d %d %d \n", min, max, *range, *val);
#endif
}
void rangevaltominmax(range,val,min,max)
int range;
int val;
int *min;
int *max;
{
/* range val to min max conversion: */
*min = (val - range);
*max = (val + range);
#ifdef DEBUG
printf("min,max,range,val = %d %d %d %d \n", *min, *max, range, val);
#endif
}