Description: |
Returns the number of trailing zero bits in an integer. | ||

Class: |
Elemental function; Generic | ||

Arguments: |
I must be of type integer. | ||

Results: |
The result type is the same
as I. The result value is the number of trailing zeros in the
binary representation of the integer I.
The model for the interpretation of an integer value as a sequence of bits is shown in Section D.3. |

**Examples**

Consider the following:

```
INTEGER*8 J, TWO
PARAMETER (TWO=2)
DO J= -1, 40
TYPE *, TRAILZ(TWO**J) ! Prints 64, then 0 up to
ENDDO ! 40 (trailing zeros)
END
```

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