The global value false
is the only instance of class
FalseClass
and represents a logically false value in boolean
expressions. The class provides operators allowing false
to
participate correctly in logical expressions.
And---Returns false
. obj is always evaluated as it is
the argument to a method call---there is no short-circuit evaluation in
this case.
static VALUE false_and(VALUE obj, VALUE obj2) { return Qfalse; }
Exclusive Or---If obj is nil
or false
,
returns false
; otherwise, returns true
.
static VALUE false_xor(VALUE obj, VALUE obj2) { return RTEST(obj2)?Qtrue:Qfalse; }
'nuf said...
static VALUE false_to_s(VALUE obj) { return rb_usascii_str_new2("false"); }
Or---Returns false
if obj is nil
or
false
; true
otherwise.
static VALUE false_or(VALUE obj, VALUE obj2) { return RTEST(obj2)?Qtrue:Qfalse; }