Extended maintenance of Ruby 1.9.3 ended on February 23, 2015. Read more

In Files

  • object.c




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.

Public Instance Methods

true & obj → true or false click to toggle source

And—Returns false if obj is nil or false, true otherwise.

               static VALUE
true_and(VALUE obj, VALUE obj2)
    return RTEST(obj2)?Qtrue:Qfalse;
true ^ obj → !obj click to toggle source

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;
to_s → "true" click to toggle source

The string representation of true is “true”.

               static VALUE
true_to_s(VALUE obj)
    return rb_usascii_str_new2("true");
true | obj → true click to toggle source

Or—Returns true. As anObject is an argument to a method call, it is always evaluated; there is no short-circuit evaluation in this case.

true |  puts("or")
true || puts("logical or")


               static VALUE
true_or(VALUE obj, VALUE obj2)
    return Qtrue;