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DWARF_HASFORM(3)	 BSD Library Functions Manual	      DWARF_HASFORM(3)

NAME
     dwarf_hasform, dwarf_whatform, dwarf_whatform_direct -- query attribute
     forms

LIBRARY
     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS
     #include <libdwarf.h>

     int
     dwarf_hasform(Dwarf_Attribute attr, Dwarf_Half form, Dwarf_Bool *ret,
	 Dwarf_Error *err);

     int
     dwarf_whatform(Dwarf_Attribute attr, Dwarf_Half *retform,
	 Dwarf_Error *err);

     int
     dwarf_whatform_direct(Dwarf_Attribute attr, Dwarf_Half *retform,
	 Dwarf_Error *err);

DESCRIPTION
     Function dwarf_hasform() indicates	whether	the DWARF attribute denoted by
     argument attr has the attribute form specified by argument	form.  If the
     attribute has the specified form, then argument ret is set	to a non-zero
     value, otherwise it is set	to zero.  If argument err is non-NULL, it will
     be	used to	return an error	descriptor in case of an error.

     Function dwarf_whatform() sets the	location specified by argument retform
     to	the attribute form code	for the	DWARF attribute	referenced by argument
     attr.  If the attribute referenced	by argument attr has an	indirect form
     attribute,	this function will return the final form for the attribute.
     If	argument err is	non-NULL, it will be used to return an error descrip-
     tor in case of an error.

     Function dwarf_whatform_direct() sets the location	specified by argument
     retform to	the attribute form code	for the	DWARF attribute	referenced by
     argument attr.  If	the form is an indirect	form, the function sets	the
     location specified	by argument retform to DW_FORM_indirect.  If argument
     err is non-NULL, it will be used to return	an error descriptor in case of
     an	error.

RETURN VALUES
     These functions return DW_DLV_OK on success.  In case of an error,	these
     functions return DW_DLV_ERR and set argument err.

ERRORS
     These functions may fail with the following errors:

     [DW_DLE_ARGUMENT]	Any of the arguments attr, ret,	or retform was NULL.

SEE ALSO
     dwarf(3), dwarf_attr(3), dwarf_hasattr(3)

BSD				 May 22, 2010				   BSD

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO

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