/**
 * Returns the bit-length of the significand of the given number in such a way
 * that trailing zeros are not counted.
 * @param a A double precision floating point number
 */
declare function bitLength(a: number): number;
/**
 * Returns the bit-length of the significand of the given floating point
 * expansion in such a way that trailing zeros are not counted.
 * * precondition: subnormals not currently supported
 * @param a A double precision floating point expansion
 */
declare function expBitLength(a: number[]): number;
export { bitLength, expBitLength };