class FalseClass - Ruby 2.2.4 Core API Reference API Reference

Ruby 2.2 Core API

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class 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.

In Files

object.c

Parent

Object

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;
}

inspect() click to toggle source

Alias for: to_s

to_s → "false" click to toggle source

'nuf said…

static VALUE
false_to_s(VALUE obj)
{
    return rb_usascii_str_new2("false");
}

Also aliased as: inspect

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;
}

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