.\"finds which file defines a given function in a given object
.DT
function_exists()
Discworld driver help
function_exists()

Name
.SI 5
function_exists() - find the file containing a given function in an object 

.EI
Synopsys
.SI 5
string function_exists(string str, object ob)

.EI
Description
.SP 5 5
Return the file name of the object that defines the function `str' in
object `ob'. The returned value can be other than `file_name(ob)' if the
function is defined by an inherited object.

0 is returned if the function was not defined.

.EP
See also
.SI 5
call_other(3)
.EI
