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

In Files

  • object.c

Parent

Object

Methods

FalseClass

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.

Public Instance Methods

false & obj → false click to toggle source
nil & obj → false

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;
}
false ^ obj → true or false click to toggle source
nil ^ obj → true or false

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;
}
to_s → "false" click to toggle source

‘nuf said…

 
               static VALUE
false_to_s(VALUE obj)
{
    return rb_usascii_str_new2("false");
}
false | obj → true or false click to toggle source
nil | obj → true or 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;
}