Extended maintenance of Ruby versions 1.8.7 and 1.9.2 ended on July 31, 2014. Read more

In Files

  • object.c

Parent

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(obj, obj2)
    VALUE obj, 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(obj, obj2)
    VALUE obj, obj2;
{
    return RTEST(obj2)?Qtrue:Qfalse;
}
            
to_s => "false" click to toggle source

‘nuf said…

 
               static VALUE
false_to_s(obj)
    VALUE obj;
{
    return rb_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(obj, obj2)
    VALUE obj, obj2;
{
    return RTEST(obj2)?Qtrue:Qfalse;
}