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NetBSD/lib/libc/gen/stringlist.3

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* sl_init(); if malloc() fails return NULL instead of calling err(1,...) * sl_add(); if realloc() fails return -1 instead of calling err(1,...). otherwise, return 0. NOTE: this change resulted in sl_add() changing from returning void to int. this shouldn't be a problem because a) it returns 0 if ok (aka `void', b) all invokers of sl_add() in the tree have been changed (mainly code i've written).
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.\" $NetBSD: stringlist.3,v 1.6 1999/11/28 03:44:09 lukem Exp $
man page for stringlist functions
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.\"
* sl_init(); if malloc() fails return NULL instead of calling err(1,...) * sl_add(); if realloc() fails return -1 instead of calling err(1,...). otherwise, return 0. NOTE: this change resulted in sl_add() changing from returning void to int. this shouldn't be a problem because a) it returns 0 if ok (aka `void', b) all invokers of sl_add() in the tree have been changed (mainly code i've written).
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.\" Copyright (c) 1997, 1999 The NetBSD Foundation, Inc.
man page for stringlist functions
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.\" All rights reserved.
.\"
.\" This file was 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
Fix files using old TNF copyright notice
1997-07-31 03:53:32 +04:00
.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
man page for stringlist functions
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.\" 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.
.\"
* sl_init(); if malloc() fails return NULL instead of calling err(1,...) * sl_add(); if realloc() fails return -1 instead of calling err(1,...). otherwise, return 0. NOTE: this change resulted in sl_add() changing from returning void to int. this shouldn't be a problem because a) it returns 0 if ok (aka `void', b) all invokers of sl_add() in the tree have been changed (mainly code i've written).
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.Dd November 28, 1999
Last of the .Os cleanups. .Os is defined in the tmac.doc-common file, so we shouldn't override it with versions in the manpages. Wheee!
1999-03-22 22:44:33 +03:00
.Os
Fixed a typo and a .Os mistake.
1997-04-09 12:59:25 +04:00
.Dt STRINGLIST 3
man page for stringlist functions
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.Sh NAME
.Nm stringlist ,
.Nm sl_init ,
.Nm sl_add ,
.Nm sl_free ,
.Nm sl_find
.Nd stringlist manipulation functions
add LIBRARY section to man page
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.Sh LIBRARY
.Lb libc
man page for stringlist functions
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.Sh SYNOPSIS
.Fd #include <stringlist.h>
.Ft StringList *
.Fn sl_init
* sl_init(); if malloc() fails return NULL instead of calling err(1,...) * sl_add(); if realloc() fails return -1 instead of calling err(1,...). otherwise, return 0. NOTE: this change resulted in sl_add() changing from returning void to int. this shouldn't be a problem because a) it returns 0 if ok (aka `void', b) all invokers of sl_add() in the tree have been changed (mainly code i've written).
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.Ft int
man page for stringlist functions
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.Fn sl_add "StringList *sl" "char *item"
.Ft void
.Fn sl_free "StringList *sl" "int freeall"
.Ft char *
.Fn sl_find "StringList *sl" "char *item"
.Sh DESCRIPTION
The
.Nm
functions manipulate stringlists, which are lists of
strings that extend automatically if necessary.
.Pp
The
.Ar StringList
structure has the following definition:
.Bd -literal -offset indent
typedef struct _stringlist {
char **sl_str;
size_t sl_max;
size_t sl_cur;
} StringList;
.Ed
.Pp
.Bl -tag -width "sl_str" -offset indent
.It Ar sl_str
a pointer to the base of the array containing the list.
.It Ar sl_max
the size of
.Ar sl_str .
.It Ar sl_cur
the offset in
.Ar sl_str
of the current element.
.El
.Pp
The following stringlist manipulation functions are available:
.Bl -tag -width "sl_init()"
.It Fn sl_init
Create a stringlist.
Returns a pointer to a
* sl_init(); if malloc() fails return NULL instead of calling err(1,...) * sl_add(); if realloc() fails return -1 instead of calling err(1,...). otherwise, return 0. NOTE: this change resulted in sl_add() changing from returning void to int. this shouldn't be a problem because a) it returns 0 if ok (aka `void', b) all invokers of sl_add() in the tree have been changed (mainly code i've written).
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.Ar StringList ,
or
.Dv NULL
in case of failure.
man page for stringlist functions
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.It Fn sl_free
Releases memory occupied by
.Ar sl
and the
.Ar sl->sl_str
array.
If
.Ar freeall
is non-zero, then each of the items within
.Ar sl->sl_str
is released as well.
.It Fn sl_add
Add
.Ar item
to
.Ar sl->sl_str
at
.Ar sl->sl_cur ,
extending the size of
* sl_init(); if malloc() fails return NULL instead of calling err(1,...) * sl_add(); if realloc() fails return -1 instead of calling err(1,...). otherwise, return 0. NOTE: this change resulted in sl_add() changing from returning void to int. this shouldn't be a problem because a) it returns 0 if ok (aka `void', b) all invokers of sl_add() in the tree have been changed (mainly code i've written).
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.Ar sl->sl_str .
Returns zero upon success, -1 upon failure.
man page for stringlist functions
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.It Fn sl_find
Find
.Ar item
in
.Ar sl ,
returning NULL if it's not found.
.El
.Sh SEE ALSO
.Xr free 3 ,
.Xr malloc 3
* sl_init(); if malloc() fails return NULL instead of calling err(1,...) * sl_add(); if realloc() fails return -1 instead of calling err(1,...). otherwise, return 0. NOTE: this change resulted in sl_add() changing from returning void to int. this shouldn't be a problem because a) it returns 0 if ok (aka `void', b) all invokers of sl_add() in the tree have been changed (mainly code i've written).
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.Sh HISTORY
The
.Nm
functions appeared in
.Nx 1.3 .