| ATOI(3) | Library Functions Manual | ATOI(3) | 
atoi —
#include <stdlib.h>
int
  
  atoi(const
    char *nptr);
atoi() function converts the initial portion of the
  string pointed to by nptr to integer
  representation.
It is equivalent to:
(int)strtol(nptr, NULL, 10);
atoi() function conforms to ANSI
  X3.159-1989 (“ANSI C89”).
atoi does no overflow checking, handles unsigned numbers
  poorly, and handles strings containing trailing extra characters (like
  “123abc”) poorly. Careful use of
  strtol(3) and
  strtoul(3) can alleviate these
  problems.
| June 13, 2018 | NetBSD 9.4 |