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.\" $Id: dwarf_find_macro_value_start.3 3640 2018-10-14 14:09:13Z jkoshy $
.\"
.Dd March 26, 2011
.Dt DWARF_FIND_MACRO_VALUE_START 3
.Os
.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