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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_find_macro_value_start.3 2073 2011-10-27 03:30:47Z jkoshy $
.\"
.Dd March 26, 2011
.Os
.Dt DWARF_FIND_MACRO_VALUE_START 3
.Sh NAME
.Nm dwarf_find_macro_value_start
.Nd return the address of the first byte of a macro value
.Sh LIBRARY
.Lb libdwarf
.Sh SYNOPSIS
.In libdwarf.h
.Ft char *
.Fo dwarf_find_macro_value_start
.Fa "char *macro_string"
.Fc
.Sh DESCRIPTION
Given a DWARF macro string, function
.Fn dwarf_find_macro_value_start
returns a pointer to the first byte of the macro value part of the
macro string.
.Pp
Argument
.Ar macro_string
should be a NUL-terminated string conforming to the macro format
defined in the DWARF standard; see
.Xr dwarf 4 .
.Sh RETURN VALUES
On success, function
.Fn dwarf_find_macro_value_start
returns a pointer to the first byte of the macro value.
If the macro value part was not found, function
.Fn dwarf_find_macro_value_start
returns a pointer to the NUL-byte terminating argument
.Ar macro_string .
.Pp
Function
.Fn dwarf_find_macro_value_start
returns NULL if argument
.Ar macro_string
was NULL.
.Sh SEE ALSO
.Xr dwarf 3 ,
.Xr dwarf_get_macro_details 3
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