Manual Reference Pages - poppar (3)
poppar(3f) - [FORTRAN:INTRINSIC:BIT INQUIRY] Parity of the number of bits set
CONTENTS
Syntax
Description
Arguments
Return Value
Example
Standard
Class
See Also
SYNTAX
result = poppar(i)
DESCRIPTION
Returns the parity of an integer’s binary representation (i.e., the parity of the number of bits set).
ARGUMENTS
I - Shall be of type INTEGER.
RETURN VALUE
The return value is of type ’integer’ and of the default integer kind. It is equal to 0 if I has an even number of bits set and 1 if an odd number of bits are set.
EXAMPLE
Sample program:
program demo_population print *, popcnt(127), poppar(127) print *, popcnt(huge(0_4)), poppar(huge(0_4)) print *, popcnt(huge(0_8)), poppar(huge(0_8)) end program demo_population
STANDARD
[[Fortran 2008]] and later
CLASS
[[Elemental function]]
SEE ALSO
[[popcnt]], [[leadz]], [[trailz]]
| poppar (3) | March 19, 2019 |
