Function frexp

Source/astcenc_mathlib.h:468–474

* @brief Extract mantissa and exponent of a float value. * * @param v The input value. * @param[out] expo The output exponent. * * @return The mantissa. */

 * @return The mantissa.
 */
static inline float frexp(float v, int* expo)
{
	unsigned int iv = astc::float_as_uint(v);
	*expo = ((iv >> 23) & 0xFF) - 126;
	iv = (iv & 0x807fffff) | 0x3f000000;
	return astc::uint_as_float(iv);
}

/**
 * @brief Compute the product of two sizes.