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dwarf_get_abbrev_children_flag.3
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.\" Copyright (c) 2011 Kai Wang
.\" All rights reserved.
.\"
.\" 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 AUTHOR 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 AUTHOR 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.
.\"
.\" $Id: dwarf_get_abbrev_children_flag.3 2071 2011-10-27 03:20:00Z jkoshy $
.\"
.Dd March 14, 2011
.Os
.Dt DWARF_GET_ABBREV_CHILDREN_FLAG 3
.Sh NAME
.Nm dwarf_get_abbrev_children_flag
.Nd return a flag indicating the presence of children
.Sh LIBRARY
.Lb libdwarf
.Sh SYNOPSIS
.In libdwarf.h
.Ft int
.Fo dwarf_get_abbrev_children_flag
.Fa "Dwarf_Abbrev abbrev"
.Fa "Dwarf_Signed *ret"
.Fa "Dwarf_Error *err"
.Fc
.Sh DESCRIPTION
Function
.Fn dwarf_get_abbrev_children_flag
retrieves a flag indicating whether the DWARF debug information entry
associated with a DWARF abbreviation descriptor has child entries.
.Pp
Argument
.Ar abbrev
should be a valid DWARF abbreviation descriptor, as returned by
.Xr dwarf_get_abbrev 3 .
.Pp
Argument
.Ar ret
should point to a location which will hold the returned
flag.
The value returned will be one of the following:
.Bl -tag -width ".Dv DW_CHILDREN_yes" -compact
.It Dv DW_CHILDREN_yes
The debugging information entry associated with the
specified abbreviation descriptor has children.
.It Dv DW_CHILDREN_no
The debugging information entry associated with the
specified abbreviation descriptor has no children.
.El
.Pp
If argument
.Ar err
is not NULL, it will be used to store error information in case of an
error.
.Pp
.Sh RETURN VALUES
Function
.Fn dwarf_get_abbrev_children_flag
returns
.Dv DW_DLV_OK
when it succeeds.
In case of an error, it returns
.Dv DW_DLV_ERROR
and sets the argument
.Ar err .
.Sh ERRORS
Function
.Fn dwarf_get_abbrev_children_flag
can fail with:
.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
.It Bq Er DW_DLE_ARGUMENT
Either of arguments
.Ar abbrev
or
.Ar ret
was NULL.
.El
.Sh SEE ALSO
.Xr dwarf 3 ,
.Xr dwarf_get_abbrev 3 ,
.Xr dwarf_get_abbrev_code 3 ,
.Xr dwarf_get_abbrev_tag 3 ,
.Xr dwarf_get_abbrev_entry 3