ATOI(3) NEWLIB ATOI(3)NAME
2.8 `atoi', `atol'--string to integer
SYNOPSIS
#include <stdlib.h>
int atoi(const char *S);
long atol(const char *S);
int _atoi_r(struct _reent *PTR, const char *S);
long _atol_r(struct _reent *PTR, const char *S);
DESCRIPTION
`atoi' converts the initial portion of a string to an `int'. `atol'
converts the initial portion of a string to a `long'.
`atoi(s)' is implemented as `(int)strtol(s, NULL, 10).' `atol(s)' is
implemented as `strtol(s, NULL, 10).'
`_atoi_r' and `_atol_r' are reentrant versions of `atoi' and `atol'
respectively, passing the reentrancy struct pointer.
RETURNS
The functions return the converted value, if any. If no conversion was
made, `0' is returned.
PORTABILITY
`atoi', `atol' are ANSI.
No supporting OS subroutines are required.
SEE ALSOatoi is part of the library. The full documentation for is maintained
as a Texinfo manual. If info and are properly installed at your site,
the command
info
will give you access to the complete manual.
NEWLIB April 2010 ATOI(3)