/*============================================================================= This file is part of FLINT. FLINT is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. FLINT is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with FLINT; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA =============================================================================*/ /****************************************************************************** Copyright (C) 2010 Fredrik Johansson ******************************************************************************/ #include #include #include "flint.h" #include "nmod_mat.h" #include "nmod_vec.h" void nmod_mat_scalar_mul(nmod_mat_t B, const nmod_mat_t A, mp_limb_t c) { if (c == UWORD(0)) { nmod_mat_zero(B); } else if (c == UWORD(1)) { nmod_mat_set(B, A); } else if (c == A->mod.n - UWORD(1)) { nmod_mat_neg(B, A); } else { slong i, j; for (i = 0; i < A->r; i++) for (j = 0; j < A->c; j++) nmod_mat_entry(B, i, j) = n_mulmod2_preinv( nmod_mat_entry(A, i, j), c, A->mod.n, A->mod.ninv); } }