musl/src/stdlib/atoi.c

16 lines
231 B
C
Raw Normal View History

2011-02-12 00:22:29 -05:00
#include <stdlib.h>
#include <ctype.h>
int atoi(const char *s)
{
int n=0, neg=0;
while (isspace(*s)) s++;
switch (*s) {
case '-': neg=1;
case '+': s++;
}
while (isdigit(*s))
n = 10*n + *s++ - '0';
return neg ? -n : n;
}