POPPAR(I)
returns parity of the integer I
, i.e. the parity of the number of bits set (’1’ bits) in the binary representation of I
. It is equal to 0 if I
has an even number of bits set, and 1 for an odd number of ’1’ bits.
Fortran 2008 and later
Elemental function
RESULT = POPPAR(I)
I | Shall be of type INTEGER . |
The return value is of type INTEGER
and of the default integer kind.
program test_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 test_population
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Licensed under the GNU Free Documentation License, Version 1.3.
https://gcc.gnu.org/onlinedocs/gcc-10.2.0/gfortran/POPPAR.html