MERGE_BITS(I, J, MASK)
merges the bits of I and J as determined by the mask. The i-th bit of the result is equal to the i-th bit of I if the i-th bit of MASK is 1; it is equal to the i-th bit of J otherwise.
Fortran 2008 and later
Elemental function
RESULT = MERGE_BITS(I, J, MASK)
I | Shall be of type INTEGER or a boz-literal-constant. |
J | Shall be of type INTEGER with the same kind type parameter as I or a boz-literal-constant. I and J shall not both be boz-literal-constants. |
MASK | Shall be of type INTEGER or a boz-literal-constant and of the same kind as I. |
The result is of the same type and kind as I.
© Free Software Foundation
Licensed under the GNU Free Documentation License, Version 1.3.
https://gcc.gnu.org/onlinedocs/gcc-10.2.0/gfortran/MERGE_005fBITS.html