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MEMCMPU.C@ cbe2c15

Last change on this file since cbe2c15 was 3ae31e9, checked in by Thomas Lopatic <thomas@…>, 7 years ago
Imported original source code.
Property mode set to `100755`
File size: 649 bytes

Rev	Line
[3ae31e9]	1	/*
	2	============================================================================
	3	memcmpu -- compare two memory areas while ignoring case
	4	Version 4 -- 1987-06-15 -- D.N. Lynx Crowe
	5	============================================================================
	6	*/
	7
	8	#include "ctype.h"
	9
	10	int
	11	memcmpu(s1, s2, n)
	12	register char s1, s2;
	13	int n;
	14	{
	15	register char c1, c2;
	16
	17	while (n) {
	18
	19	c1 = *s1++;
	20	c2 = *s2++;
	21
	22	if (isascii(c1) && islower(c1))
	23	c1 = _toupper(c1);
	24
	25	if (isascii(c2) && islower(c2))
	26	c2 = _toupper(c2);
	27
	28	if (c1 < c2)
	29	return(-1);
	30
	31	if (c1 > c2)
	32	return(1);
	33
	34	n--;
	35	}
	36
	37	return(0);
	38	}

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