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Command: atoi | Section: 3 | Source: FreeBSD | File: atoi.3.gz
ATOI(3) FreeBSD Library Functions Manual ATOI(3)
NAME
atoi - convert ASCII string to integer
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdlib.h>
int
atoi(const char *nptr);
DESCRIPTION
The atoi() function converts the initial portion of the string pointed to
by nptr to int representation.
It is equivalent to:
(int)strtol(nptr, NULL, 10);
The atoi() function has been deprecated by strtol() and should not be
used in new code.
ERRORS
The function atoi() need not affect the value of errno on an error.
SEE ALSO
atof(3), atol(3), strtod(3), strtol(3), strtoul(3)
STANDARDS
The atoi() function conforms to IEEE Std 1003.1-1990 ("POSIX.1"), ISO/IEC
9899:1990 ("ISO C90"), and ISO/IEC 9899:1999 ("ISO C99").
HISTORY
The atoi() function appeared in Version 1 AT&T UNIX.
FreeBSD 14.1-RELEASE-p8 April 1, 2020 FreeBSD 14.1-RELEASE-p8