Method: Float#===

Defined in:
numeric.c

#==(obj) ⇒ Boolean

Returns true only if obj has the same value as float. Contrast this with Float#eql?, which requires obj to be a Float.

The result of NaN == NaN is undefined, so the implementation-dependent value is returned.

1.0 == 1   #=> true

Returns:

  • (Boolean) 


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# File 'numeric.c', line 1073

static VALUE
flo_eq(VALUE x, VALUE y)
{
    volatile double a, b;

    if (RB_TYPE_P(y, T_FIXNUM) || RB_TYPE_P(y, T_BIGNUM)) {
        return rb_integer_float_eq(y, x);
    }
    else if (RB_TYPE_P(y, T_FLOAT)) {
	b = RFLOAT_VALUE(y);
#if defined(_MSC_VER) && _MSC_VER < 1300
	if (isnan(b)) return Qfalse;
#endif
    }
    else {
	return num_equal(x, y);
    }
    a = RFLOAT_VALUE(x);
#if defined(_MSC_VER) && _MSC_VER < 1300
    if (isnan(a)) return Qfalse;
#endif
    return (a == b)?Qtrue:Qfalse;
}