## 9.3.158 TRAILZ (I)

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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