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Diffstat (limited to 'Cython/Includes/libcpp/bit.pxd')
| -rw-r--r-- | Cython/Includes/libcpp/bit.pxd | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/Cython/Includes/libcpp/bit.pxd b/Cython/Includes/libcpp/bit.pxd new file mode 100644 index 000000000..cac12ea4f --- /dev/null +++ b/Cython/Includes/libcpp/bit.pxd @@ -0,0 +1,31 @@ +cdef extern from "<bit>" namespace "std" nogil: + # bit_cast (gcc >= 11.0, clang >= 14.0) + cdef To bit_cast[To, From](From&) + + # byteswap (C++23) + #cdef T byteswap[T](T) + + # integral powers of 2 (gcc >= 10.0, clang >= 12.0) + cdef bint has_single_bit[T](T) + cdef T bit_ceil[T](T) + cdef T bit_floor[T](T) + cdef int bit_width[T](T) + + # rotating (gcc >= 9.0, clang >= 9.0) + cdef T rotl[T](T, int shift) + cdef T rotr[T](T, int shift) + + # counting (gcc >= 9.0, clang >= 9.0) + cdef int countl_zero[T](T) + cdef int countl_one[T](T) + cdef int countr_zero[T](T) + cdef int countr_one[T](T) + cdef int popcount[T](T) + + # endian + cpdef enum class endian(int): + little, + big, + native + + |