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ATOL.C@ d21fc6f

Last change on this file since d21fc6f was 3ae31e9, checked in by Thomas Lopatic <thomas@…>, 8 years ago
Imported original source code.
Property mode set to `100755`
File size: 579 bytes

Rev	Line
[3ae31e9]	1	/*
	2	=============================================================================
	3	atol.c -- ascii to long conversion
	4	Version 3 -- 1987-06-29 -- D.N. Lynx Crowe
	5	=============================================================================
	6	*/
	7
	8	#include "stddefs.h"
	9	#include "ctype.h"
	10
	11	long
	12	atol(cp)
	13	register char *cp;
	14	{
	15	register long n;
	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 (n = 0; isdigit(*cp); )
	32	n = n * 10 + *cp++ - '0';
	33
	34	return(sign ? -n : n);
	35	}

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