1.\" Copyright (c) 2011 Kai Wang
2.\" All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\"    notice, this list of conditions and the following disclaimer.
9.\" 2. Redistributions in binary form must reproduce the above copyright
10.\"    notice, this list of conditions and the following disclaimer in the
11.\"    documentation and/or other materials provided with the distribution.
12.\"
13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23.\" SUCH DAMAGE.
24.\"
25.\" $Id: dwarf_get_abbrev_children_flag.3 3644 2018-10-15 19:55:01Z jkoshy $
26.\"
27.Dd March 14, 2011
28.Dt DWARF_GET_ABBREV_CHILDREN_FLAG 3
29.Os
30.Sh NAME
31.Nm dwarf_get_abbrev_children_flag
32.Nd return a flag indicating the presence of children
33.Sh LIBRARY
34.Lb libdwarf
35.Sh SYNOPSIS
36.In libdwarf.h
37.Ft int
38.Fo dwarf_get_abbrev_children_flag
39.Fa "Dwarf_Abbrev abbrev"
40.Fa "Dwarf_Signed *ret"
41.Fa "Dwarf_Error *err"
42.Fc
43.Sh DESCRIPTION
44Function
45.Fn dwarf_get_abbrev_children_flag
46retrieves a flag indicating whether the DWARF debug information entry
47associated with a DWARF abbreviation descriptor has child entries.
48.Pp
49Argument
50.Ar abbrev
51should be a valid DWARF abbreviation descriptor, as returned by
52.Xr dwarf_get_abbrev 3 .
53.Pp
54Argument
55.Ar ret
56should point to a location which will hold the returned
57flag.
58The value returned will be one of the following:
59.Bl -tag -width ".Dv DW_CHILDREN_yes" -compact
60.It Dv DW_CHILDREN_yes
61The debugging information entry associated with the
62specified abbreviation descriptor has children.
63.It Dv DW_CHILDREN_no
64The debugging information entry associated with the
65specified abbreviation descriptor has no children.
66.El
67.Pp
68If argument
69.Ar err
70is not NULL, it will be used to store error information in case of an
71error.
72.Sh RETURN VALUES
73Function
74.Fn dwarf_get_abbrev_children_flag
75returns
76.Dv DW_DLV_OK
77when it succeeds.
78In case of an error, it returns
79.Dv DW_DLV_ERROR
80and sets the argument
81.Ar err .
82.Sh ERRORS
83Function
84.Fn dwarf_get_abbrev_children_flag
85can fail with:
86.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
87.It Bq Er DW_DLE_ARGUMENT
88Either of arguments
89.Ar abbrev
90or
91.Ar ret
92was NULL.
93.El
94.Sh SEE ALSO
95.Xr dwarf 3 ,
96.Xr dwarf_get_abbrev 3 ,
97.Xr dwarf_get_abbrev_code 3 ,
98.Xr dwarf_get_abbrev_entry 3 ,
99.Xr dwarf_get_abbrev_tag 3
100