# MATH_CountTrailingZeros

## Syntax

      #include <nitro/math.h>

      u32 MATH_CountTrailingZeros( u32 x );
      u32 MATH_CTZ( u32 x );

## Arguments

x | The value to scan

## Return Values

Returns the number of consecutive bits set to 0, starting from the lowest-order bit.

## Description

This function finds the number of bits set to 0 starting from the lowest-order bit when x is expressed as a binary 32-bit value. For example, a value of 0x80000000 will return 31, and a value of 0 will return 32. This is an inline function that uses the `MATH_CountLeadingZeros` function.

`MATH_CTZ` is another name for the `MATH_CountTrailingZeros` function.

To count the number of consecutive `0`'s from the beginning, you can use the `MATH_CountLeadingZeros` function.

## See Also

`MATH_CountLeadingZeros, MATH_ILog2
`

## Revision History

2005/12/22 Initial version.

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