NCBI C++ ToolKit
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Bit manipulation primitives (internal) More...
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Classes | |
struct | bm::bit_block_t |
bit-block array wrapped into union for correct interpretation of 32-bit vs 64-bit access vs SIMD More... | |
union | bm::bit_block_t::bunion_t |
struct | bm::conditional< b > |
ad-hoc conditional expressions More... | |
struct | bm::conditional< false > |
class | bm::ptr_guard< T > |
Mini auto-pointer for internal memory management. More... | |
struct | bm::and_func |
and functor More... | |
struct | bm::xor_func |
xor functor More... | |
struct | bm::or_func |
or functor More... | |
struct | bm::sub_func |
sub functor More... | |
Namespaces | |
bm | |
#include<zmmintrin.h> | |
Functions | |
template<typename T > | |
T | bm::min_value (T v1, T v2) noexcept |
Get minimum of 2 values. More... | |
template<typename T > | |
T | bm::ilog2 (T x) noexcept |
Fast loop-less function to find LOG2. More... | |
template<> | |
bm::gap_word_t | bm::ilog2 (gap_word_t x) noexcept |
unsigned | bm::count_leading_zeros (unsigned x) noexcept |
Portable LZCNT with (uses minimal LUT) More... | |
unsigned | bm::count_trailing_zeros (unsigned v) noexcept |
Portable TZCNT with (uses 37-LUT) More... | |
template<typename T > | |
T | bm::ilog2_LUT (T x) noexcept |
Lookup table based integer LOG2. More... | |
template<> | |
bm::gap_word_t | bm::ilog2_LUT< bm::gap_word_t > (bm::gap_word_t x) noexcept |
Lookup table based short integer LOG2. More... | |
template<typename T > | |
T | bm::bit_scan_fwd (T v) noexcept |
unsigned | bm::bit_scan_reverse32 (unsigned w) noexcept |
unsigned | bm::bit_scan_forward32 (unsigned w) noexcept |
unsigned long long | bm::bmi_bslr_u64 (unsigned long long w) noexcept |
unsigned long long | bm::bmi_blsi_u64 (unsigned long long w) |
unsigned | bm::count_leading_zeros_u32 (unsigned w) noexcept |
32-bit bit-scan reverse More... | |
unsigned | bm::count_leading_zeros_u64 (bm::id64_t w) noexcept |
64-bit bit-scan reverse More... | |
unsigned | bm::count_trailing_zeros_u32 (unsigned w) noexcept |
32-bit bit-scan fwd More... | |
unsigned | bm::count_trailing_zeros_u64 (bm::id64_t w) noexcept |
64-bit bit-scan fwd More... | |
template<class T > | |
unsigned | bm::bit_scan_reverse (T value) noexcept |
unsigned | bm::mask_r_u32 (unsigned nbit) noexcept |
unsigned | bm::mask_l_u32 (unsigned nbit) noexcept |
template<typename W > | |
void | bm::xor_swap (W &x, W &y) noexcept |
XOR swap two variables. More... | |
unsigned | bm::compute_h64_mask (unsigned long long w) noexcept |
Сompute mask of bytes presense in 64-bit word. More... | |
bool | bm::has_zero_byte_u64 (bm::id64_t v) noexcept |
Returns true if INT64 contains 0 octet. More... | |
bm::id_t | bm::word_bitcount (bm::id_t w) noexcept |
unsigned | bm::word_bitcount64 (bm::id64_t x) noexcept |
template<typename T > | |
bool | bm::is_aligned (T *p) noexcept |
Check pointer alignment. More... | |
Bit manipulation primitives (internal)
Definition in file bmutil.h.