Function bitreverse¶

`function` bitreverse(const vec<T, N> &) simd ¶

template <size_t groupsize = 1, typename T, size_t N>
KFR_INTRINSIC vec<T, N> bitreverse(const vec<T, N>& x)

Reorders the elements of a vector by reversing the bits of their indices.

A specialization of digitreverse with radix 2 (binary). Optionally supports grouped bit reversal.

Template parameters
groupsize	Number of elements per group before applying bit reversal.
T	The element type of the vector.
N	The number of elements in the vector.

Parameters
x	The input vector to be reordered.

Returns
	A vector with bit-reversed indices.

Fully qualified name: kfr::bitreverse(const vec<T, N> &)

template <size_t bits>
constexpr KFR_INTRINSIC u32 bitreverse(u32 x) { … }

Reverses the lowest bits bits of the given unsigned integer.

Template parameters
bits	Number of bits to reverse.

Parameters
x	The input 32-bit unsigned integer.

Returns
	The bit-reversed integer.

Fully qualified name: kfr::bitreverse(u32)

constexpr KFR_INTRINSIC u32 bitreverse(u32 x, size_t bits) { … }

Reverses the lowest bits bits of the given unsigned integer at runtime.

Parameters
x	The input 32-bit unsigned integer.
bits	Number of low bits to reverse (must be <= 32).

Returns
	The integer with its lowest `bits` bits reversed.

Fully qualified name: kfr::bitreverse(u32, size_t)

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