The global value true
is the only instance of class TrueClass and represents a logically true value
in boolean expressions. The class provides operators allowing
true
to be used in logical expressions.
And—Returns false
if obj is nil
or
false
, true
otherwise.
static VALUE true_and(VALUE obj, VALUE obj2) { return RTEST(obj2)?Qtrue:Qfalse; }
Case Equality – For class Object, effectively the
same as calling #==
, but typically overridden by descendants
to provide meaningful semantics in case
statements.
#define case_equal rb_equal
Exclusive Or—Returns true
if obj is nil
or false
, false
otherwise.
static VALUE true_xor(VALUE obj, VALUE obj2) { return RTEST(obj2)?Qfalse:Qtrue; }
The string representation of true
is “true”.
static VALUE true_to_s(VALUE obj) { return rb_cTrueClass_to_s; }