remove_set_function

Arguments

Returns

The expression, in Lisp syntax, which was removed, or nil if none was removed.

Description

This function removes a set expression from the symbol. The s_exp is compared to all of the current expression set for the symbol using the comparison function eq.

Example

    Gamma> b = 5;
    5
    Gamma>  add_set_function(#b,#princ("changed\n"));
    (princ "changed\n")
    Gamma> b = 4;
    changed
    4
    Gamma> remove_set_function(#b,#princ("changed\n"));
    (princ "changed\n")
    Gamma> b = 3;
    3
    Gamma> 
    		

See Also

add_set_function, when_set_fns