FLINT3.7.0-dev

vec4n_horizontal_sum

Synopsis#include <flint/machine_vectors.h>
ulong vec4n_horizontal_sum(vec4n a)source

Returns a_0 + a_1 + a_2 + a_3 modulo 2^{64}. AVX2 only.

Cite this page

The FLINT team, “vec4n_horizontal_sum (machine_vectors.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/machine_vectors/vec4n_horizontal_sum.html (generated 2026-10-20).