The bit-manipulation intrinsics supported by traditional
f77 and by f2c are available in the GNU Fortran language.
These include AND, LSHIFT, OR, RSHIFT,
and XOR.
Also supported are the intrinsics CDABS,
CDCOS, CDEXP, CDLOG, CDSIN,
CDSQRT, DCMPLX, DCONJG, DFLOAT,
DIMAG, DREAL, and IMAG,
ZABS, ZCOS, ZEXP, ZLOG, ZSIN,
and ZSQRT.