-.\" $FreeBSD: src/lib/libc/stdlib/hcreate.3,v 1.4 2003/09/08 19:57:15 ru Exp $
+.\"-
+.\" Copyright (c) 1999 The NetBSD Foundation, Inc.
+.\" All rights reserved.
.\"
-.Dd May 8, 2001
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Klaus Klein.
+.\"
+.\" 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.
+.\"
+.\" 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.
+.\"
+.\" $FreeBSD: src/lib/libc/stdlib/hcreate.3,v 1.7 2008/07/06 17:03:37 danger Exp $
+.\"
+.Dd July 6, 2008
.Os
.Dt HCREATE 3
.Sh NAME
.Sh RETURN VALUES
The
.Fn hcreate
-function returns 0 if it cannot allocate sufficient space for the table;
-otherwise, it returns non-zero.
+function returns 0 if the table creation failed and the global variable
+.Va errno
+is set to indicate the error;
+otherwise, a non-zero value is returned.
.Pp
The
.Fn hdestroy
is
.Dv ENTER
and the table is full.
-.Sh ERRORS
-The
-.Fn hcreate
-and
-.Fn hsearch
-functions may fail if:
-.Bl -tag -width Er
-.It Bq Er ENOMEM
-Insufficient storage space is available.
-.El
.Sh EXAMPLES
The following example reads in strings followed by two numbers
and stores them in a hash table, discarding duplicates.
return 0;
}
.Ed
+.Sh ERRORS
+The
+.Fn hcreate
+and
+.Fn hsearch
+functions may fail if:
+.Bl -tag -width Er
+.It Bq Er ENOMEM
+Insufficient storage space is available.
+.It Bq Er EINVAL
+A table already exists.
+.El
.Sh SEE ALSO
.Xr bsearch 3 ,
.Xr lsearch 3 ,