ALL: Add flint

external/flint-2.4.3/fmpz_poly/test/t-compose_divconquer.c

@@ -0,0 +1,136 @@
+/*=============================================================================
+
+    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) 2009 William Hart
+    Copyright (C) 2010 Sebastian Pancratz
+
+******************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <gmp.h>
+#include "flint.h"
+#include "fmpz.h"
+#include "fmpz_poly.h"
+#include "ulong_extras.h"
+
+int
+main(void)
+{
+    int i, result;
+    FLINT_TEST_INIT(state);
+
+    flint_printf("compose_divconquer....");
+    fflush(stdout);
+
+    
+
+    /* Check aliasing of the first argument */
+    for (i = 0; i < 10 * flint_test_multiplier(); i++)
+    {
+        fmpz_poly_t f, g, h;
+
+        fmpz_poly_init(f);
+        fmpz_poly_init(g);
+        fmpz_poly_init(h);
+        fmpz_poly_randtest(g, state, n_randint(state, 50), 100);
+        fmpz_poly_randtest(h, state, n_randint(state, 20), 50);
+
+        fmpz_poly_compose_divconquer(f, g, h);
+        fmpz_poly_compose_divconquer(g, g, h);
+
+        result = (fmpz_poly_equal(f, g));
+        if (!result)
+        {
+            flint_printf("FAIL:\n");
+            fmpz_poly_print(f), flint_printf("\n\n");
+            fmpz_poly_print(g), flint_printf("\n\n");
+            abort();
+        }
+
+        fmpz_poly_clear(f);
+        fmpz_poly_clear(g);
+        fmpz_poly_clear(h);
+    }
+
+    /* Check aliasing of the second argument */
+    for (i = 0; i < 10 * flint_test_multiplier(); i++)
+    {
+        fmpz_poly_t f, g, h;
+
+        fmpz_poly_init(f);
+        fmpz_poly_init(g);
+        fmpz_poly_init(h);
+        fmpz_poly_randtest(g, state, n_randint(state, 50), 100);
+        fmpz_poly_randtest(h, state, n_randint(state, 20), 50);
+
+        fmpz_poly_compose_divconquer(f, g, h);
+        fmpz_poly_compose_divconquer(h, g, h);
+
+        result = (fmpz_poly_equal(f, h));
+        if (!result)
+        {
+            flint_printf("FAIL:\n");
+            fmpz_poly_print(f), flint_printf("\n\n");
+            fmpz_poly_print(h), flint_printf("\n\n");
+            abort();
+        }
+
+        fmpz_poly_clear(f);
+        fmpz_poly_clear(g);
+        fmpz_poly_clear(h);
+    }
+
+    /* Compare with the default method */
+    for (i = 0; i < 10 * flint_test_multiplier(); i++)
+    {
+        fmpz_poly_t f1, f2, g, h;
+
+        fmpz_poly_init(f1);
+        fmpz_poly_init(f2);
+        fmpz_poly_init(g);
+        fmpz_poly_init(h);
+        fmpz_poly_randtest(g, state, n_randint(state, 50), 100);
+        fmpz_poly_randtest(h, state, n_randint(state, 20), 50);
+        
+        fmpz_poly_compose_divconquer(f1, g, h);
+        fmpz_poly_compose(f2, g, h);
+
+        result = (fmpz_poly_equal(f1, f2));
+        if (!result)
+        {
+            flint_printf("FAIL:\n");
+            fmpz_poly_print(f1), flint_printf("\n\n");
+            fmpz_poly_print(f2), flint_printf("\n\n");
+            abort();
+        }
+
+        fmpz_poly_clear(f1);
+        fmpz_poly_clear(f2);
+        fmpz_poly_clear(g);
+        fmpz_poly_clear(h);
+    }
+
+    FLINT_TEST_CLEANUP(state);
+    
+    flint_printf("PASS\n");
+    return 0;
+}