3fb3b97c4d
NetBSD, OpenBSD, and Android's Bionic number the clauses 1 through 3, so follow suit to make comparison easier.
136 lines
3.2 KiB
Groff
136 lines
3.2 KiB
Groff
.\" Copyright (c) 1990, 1991, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" This code is derived from software contributed to Berkeley by
|
|
.\" the American National Standards Committee X3, on Information
|
|
.\" Processing Systems.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)atol.3 8.1 (Berkeley) 6/4/93
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd May 14, 2013
|
|
.Dt ATOL 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm atol , atoll
|
|
.Nd convert
|
|
.Tn ASCII
|
|
string to
|
|
.Vt long
|
|
or
|
|
.Vt "long long"
|
|
integer
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In stdlib.h
|
|
.Ft long
|
|
.Fn atol "const char *nptr"
|
|
.Ft "long long"
|
|
.Fn atoll "const char *nptr"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn atol
|
|
function converts the initial portion of the string pointed to by
|
|
.Fa nptr
|
|
to
|
|
.Vt long
|
|
integer
|
|
representation.
|
|
.Pp
|
|
It is equivalent to:
|
|
.Pp
|
|
.Dl "strtol(nptr, (char **)NULL, 10);"
|
|
.Pp
|
|
The
|
|
.Fn atoll
|
|
function converts the initial portion of the string pointed to by
|
|
.Fa nptr
|
|
to
|
|
.Vt "long long"
|
|
integer
|
|
representation.
|
|
.Pp
|
|
It is equivalent to:
|
|
.Pp
|
|
.Dl "strtoll(nptr, (char **)NULL, 10);"
|
|
.Sh COMPATIBILITY
|
|
The
|
|
.Fx
|
|
implementations of the
|
|
.Fn atol
|
|
and
|
|
.Fn atoll
|
|
functions are thin wrappers around
|
|
.Fn strtol
|
|
and
|
|
.Fn strtoll
|
|
respectively, so these functions will affect the value of
|
|
.Va errno
|
|
in the same way that the
|
|
.Fn strtol
|
|
and
|
|
.Fn strtoll
|
|
functions are able to.
|
|
This behavior of
|
|
.Fn atol
|
|
and
|
|
.Fn atoll
|
|
is not required by
|
|
.St -isoC
|
|
or
|
|
.St -isoC-99 ,
|
|
but it is allowed by all of
|
|
.St -isoC , St -isoC-99
|
|
and
|
|
.St -p1003.1-2001 .
|
|
.Sh ERRORS
|
|
The functions
|
|
.Fn atol
|
|
and
|
|
.Fn atoll
|
|
may affect the value of
|
|
.Va errno
|
|
on an error.
|
|
.Sh SEE ALSO
|
|
.Xr atof 3 ,
|
|
.Xr atoi 3 ,
|
|
.Xr strtod 3 ,
|
|
.Xr strtol 3 ,
|
|
.Xr strtoul 3
|
|
.Sh STANDARDS
|
|
The
|
|
.Fn atol
|
|
function
|
|
conforms to
|
|
.St -isoC .
|
|
The
|
|
.Fn atoll
|
|
function
|
|
conforms to
|
|
.St -isoC-99 .
|