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ATOI.C@ 4f508e6

Last change on this file since 4f508e6 was 3ae31e9, checked in by Thomas Lopatic <thomas@…>, 8 years ago
Imported original source code.
Property mode set to `100755`
File size: 599 bytes

Rev	Line
[3ae31e9]	1	/*
	2	=============================================================================
	3	atoi.c -- ascii to integer conversion
	4	Version 4 -- 1987-07-09 -- D.N. Lynx Crowe
	5	=============================================================================
	6	*/
	7
	8	#include "stddefs.h"
	9	#include "ctype.h"
	10
	11	int
	12	atoi(cp)
	13	register char *cp;
	14	{
	15	register unsigned i;
	16	register short sign;
	17
	18	sign = 0;
	19
	20	if ( *cp EQ '-' ) {
	21
	22	++cp;
	23	sign = 1;
	24
	25	} else {
	26
	27	if (*cp EQ '+')
	28	++cp;
	29	}
	30
	31	for (i = 0; isdigit(*cp); )
	32	i = i * 10 + (0x7F & *cp++) - '0';
	33
	34	return(sign ? -i : i);
	35	}
	36

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