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Function combine¶

`function` combine(const vec<T, N1> &, const vec<T, N2> &) simd ¶

template <typename T, size_t N1, size_t N2>
KFR_INTRINSIC vec<T, N1> combine(const vec<T, N1>& x, const vec<T, N2>& y)

Combines two vectors by selecting lanes from x or y based on index.

For lane indices in [0, N2) the lane is taken from x; for indices >= N2 the lane is taken from y. y is extended to length N1 before the selection.

Template parameters
T	Element type of the vectors.
N1	Length of the first (longer) input vector and the output.
N2	Length of the second (shorter) input vector, must be <= `N1.`

Parameters
x	First source vector.
y	Second source vector.

Returns
	A vector of length `N1` combining lanes from `x` and `y.`

Fully qualified name: kfr::combine(const vec<T, N1> &, const vec<T, N2> &)

Declared at simd/shuffle.hpp:1373

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