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# Module _number_new

Functions

 ceil_shift(n, b) Return ceil(n / 2**b) without performing any floating-point or division operations.

 ceil_div(a, b) Return ceil(a / b) without performing any floating-point operations.

 floor_div(a, b)

 exact_log2(num) Find and return an integer i >= 0 such that num == 2**i.

 exact_div(p, d, allow_divzero=False) Find and return an integer n such that p == n * d
 Function Details

### ceil_shift(n, b)

Return ceil(n / 2**b) without performing any floating-point or division operations.

This is done by right-shifting n by b bits and incrementing the result by 1 if any '1' bits were shifted out.

### exact_log2(num)

Find and return an integer i >= 0 such that num == 2**i.

If no such integer exists, this function raises ValueError.

### exact_div(p, d, allow_divzero=False)

Find and return an integer n such that p == n * d

If no such integer exists, this function raises ValueError.

Both operands must be integers.

If the second operand is zero, this function will raise ZeroDivisionError unless allow_divzero is true (default: False).

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