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kolibrios/programs/develop/metcc/trunk/libc/string/atoi.c
victor 1391dd1d1d Added several functions (to ctype.h, stdlib.h)
"Optimised" some functions in string.h
Added dynamic libraries support based on sysfunction 68.19 (experimental)

git-svn-id: svn://kolibrios.org@215 a494cfbc-eb01-0410-851d-a64ba20cac60
2006-11-21 12:36:25 +00:00

22 lines
338 B
C

#include "stdio.h"
#include "stdlib.h"
#include "ctype.h"
/*
** atoi(s) - convert s to integer.
*/
int atoi(char *s)
{
int sign, n;
while(isspace(*s)) ++s;
sign = 1;
switch(*s) {
case '-': sign = -1;
case '+': ++s;
}
n = 0;
while(isdigit(*s)) n = 10 * n + *s++ - '0';
return (sign * n);
}