FLINT3.7.0-dev

mpn_mul_2expmod_2expp1, mpn_div_2expmod_2expp1

Synopsis#include <flint/fft.h>
void mpn_mul_2expmod_2expp1(mp_limb_t * t, mp_limb_t * i1, mp_size_t limbs, flint_bitcnt_t d)source
void mpn_div_2expmod_2expp1(mp_limb_t * t, mp_limb_t * i1, mp_size_t limbs, flint_bitcnt_t d)source

Set t to i1⋅2di_1 \cdot 2^d, respectively i1/2di_1 / 2^d, modulo pp, for 0≤d<FLINT_BITS0 \le d < \mathtt{FLINT\_BITS} and a residue i1i_1 whose top limb is small. The result is not necessarily reduced.

Cite this page

The FLINT team, “mpn_mul_2expmod_2expp1, mpn_div_2expmod_2expp1 (fft.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/fft/mpn_mul_2expmod_2expp1.html (generated 2026-11-02).