package ocaml_intrinsics_kernel

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ocaml_intrinsics_kernel
- Ocaml_intrinsics_kernel
  - Common
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  - Float
  - Int
  - Int32
  - Int64
  - Naive_ints
    
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val count_leading_zeros : int64 -> int

count_leading_zeros n returns the number of most-significant zero bits before the most significant set bit in n. If n is 0, the result is the number of bits in n, that is 64.

val count_leading_zeros_nonzero_arg : int64 -> int

Same as count_leading_zeros except if the argument is zero, then the result is undefined. Emits more efficient code.

This is no longer needed when using an flambda-backend compiler, which translates count_leading_zeros to LZCNT by default (amd64).

val count_trailing_zeros : int64 -> int

count_trailing_zeros n returns the number of least-significant zero bits before the least significant set bit in n. If n is 0, the result is the number of bits in n, that is 64.

val count_trailing_zeros_nonzero_arg : int64 -> int

Same as count_trailing_zeros except if the argument is zero, then the result is undefined. Emits more efficient code.

This is no longer needed when using an flambda-backend compiler, which translates count_trailing_zeros to TZCNT by default (amd64).

val count_set_bits : int64 -> int

count_set_bits n returns the number of bits that are 1 in n.