118 lines
3.8 KiB
Groff
118 lines
3.8 KiB
Groff
.\" $NetBSD: strsuftoll.3,v 1.5 2004/03/05 05:58:29 lukem Exp $
|
|
.\"
|
|
.\" Copyright (c) 2002 The NetBSD Foundation, Inc.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" This code is derived from software contributed to The NetBSD Foundation
|
|
.\" by Luke Mewburn.
|
|
.\"
|
|
.\" 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. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the NetBSD
|
|
.\" Foundation, Inc. and its contributors.
|
|
.\" 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
.\"
|
|
.Dd March 5, 2004
|
|
.Dt STRSUFTOLL 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm strsuftoll ,
|
|
.Nm strsuftollx
|
|
.Nd "convert a string to a long long, with suffix parsing"
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In stdlib.h
|
|
.Ft long long
|
|
.Fn strsuftoll "const char *desc" "const char *val" "long long min" "long long max"
|
|
.Ft long long
|
|
.Fn strsuftollx "const char *desc" "const char *val" "long long min" "long long max" "char *errbuf" "size_t errbuflen"
|
|
.Sh DESCRIPTION
|
|
The functions
|
|
.Fn strsuftoll
|
|
and
|
|
.Fn strsuftollx
|
|
convert
|
|
.Fa val
|
|
into a long long number,
|
|
checking that the result is not smaller than
|
|
.Fa min
|
|
or larger than
|
|
.Fa max .
|
|
Two or more decimal numbers may be separated by an
|
|
.Dq x
|
|
to indicate a product.
|
|
Each decimal number may have one of the following optional suffixes:
|
|
.Bl -tag -width 3n -offset indent -compact
|
|
.It b
|
|
Block; multiply by 512
|
|
.It k
|
|
Kilo; multiply by 1024 (1 KB)
|
|
.It m
|
|
Mega; multiply by 1048576 (1 MB)
|
|
.It g
|
|
Giga; multiply by 1073741824 (1 GB)
|
|
.It t
|
|
Tera; multiply by 1099511627776 (1 TB)
|
|
.It w
|
|
Word; multiply by the number of bytes in an integer
|
|
.El
|
|
.Pp
|
|
In the case of an error (range overflow or an invalid number),
|
|
.Fn strsuftollx
|
|
places an error message into
|
|
.Fa errbuf
|
|
(which is
|
|
.Fa errbuflen
|
|
bytes long) and returns 0,
|
|
and
|
|
.Fn strsuftoll
|
|
displays that error and terminates the process.
|
|
.Sh RETURN VALUES
|
|
The functions
|
|
.Fn strsuftoll
|
|
and
|
|
.Fn strsuftollx
|
|
return either the result of the conversion,
|
|
unless the value overflows or is not a number;
|
|
in the latter case,
|
|
.Fn strsuftoll
|
|
displays an error message and terminates the process with exit code 1,
|
|
and
|
|
.Fn strsuftollx
|
|
returns with 0 and
|
|
.Fa errbuf
|
|
contains a non-empty error message.
|
|
.Sh ERRORS
|
|
.Bl -tag -width Er
|
|
.It Bq Er ERANGE
|
|
The given string was out of range; the value converted has been clamped.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr errx 3 ,
|
|
.Xr strtoll 3
|
|
.Sh BUGS
|
|
Ignores the current locale.
|