ALL: Add flint

external/flint-2.4.3/fmpz_mod_poly_factor/factor.c

@@ -0,0 +1,40 @@
+/*=============================================================================
+
+    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) 2012 Lina Kulakova
+
+******************************************************************************/
+
+#include <math.h>
+#include "fmpz_mod_poly.h"
+
+void
+fmpz_mod_poly_factor(fmpz_mod_poly_factor_t res,
+                     const fmpz_mod_poly_t f)
+{
+    slong n = fmpz_mod_poly_degree(f);
+    mp_bitcnt_t bits = fmpz_bits(&f->p);
+
+    if (5 * bits + n > 75)
+        fmpz_mod_poly_factor_kaltofen_shoup(res, f);
+    else
+        fmpz_mod_poly_factor_cantor_zassenhaus(res, f);
+}