blob: 9baca7b895a0e2f5c3cfab1554f8dcdd280431b9 [file] [log] [blame] [edit]
#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++;
}
/* Compute n as a negative number to avoid overflow on INT_MIN */
while (isdigit(*s))
n = 10*n - (*s++ - '0');
return neg ? n : -n;
}