method

finite?

v1_9_2_180 - Show latest stable - Class: Float

finite?()

public

Returns true if flt is a valid IEEE floating point number (it is not infinite, and nan? is false).

static VALUE
flo_is_finite_p(VALUE num)
{
    double value = RFLOAT_VALUE(num);

#if HAVE_FINITE
    if (!finite(value))
        return Qfalse;
#else
    if (isinf(value) || isnan(value))
        return Qfalse;
#endif

    return Qtrue;
}

finite?

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