Portable Bitwise Manipulation Intrinsics
0b0000_0010_1001_1010
(nightly-only)
The intrinsics are named after their CPU instruction and organized in modules
named after their instruction set: bitintr::{instruction_set}::{intrinsic_name}
.
They are implemented for all integer types except u128/i128
. Whether a
fallback software implementation is used depends on the integer types involved
and the instruction sets supported by the target.
The following instruction sets are implemented:
ABM
: Advanced Bit Manipulation instructions.TBM
: Trailing Bit Manipulation instructions.BMI
: Bit Manipulation Instruction Set 1.0.BMI2
: Bit Manipulation Instruction Set 2.0.
Example
extern crate bitintr;
use *;
Nightly-only
This crate relies on the following nightly features:
cfg_target_feature
for target-dependent behavior,platform_intrinsics
for using the bitwise manipulation intrinsics, andu128
support for efficient lossless unsigned 64bit multiplication.
For more information, visit the documentation page.