ALL: Add flint

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

@@ -0,0 +1,168 @@
+/*=============================================================================
+
+    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, 2011 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("sqr_KS....");
+    fflush(stdout);
+
+    
+
+    /* Check aliasing of a and b */
+    for (i = 0; i < 200 * flint_test_multiplier(); i++)
+    {
+        fmpz_poly_t a, b, c;
+
+        fmpz_poly_init(a);
+        fmpz_poly_init(b);
+        fmpz_poly_init(c);
+        fmpz_poly_randtest(a, state, n_randint(state, 50), 200);
+        fmpz_poly_set(b, a);
+        fmpz_poly_sqr_KS(c, b);
+        fmpz_poly_sqr_KS(b, b);
+
+        result = (fmpz_poly_equal(b, c));
+        if (!result)
+        {
+            flint_printf("FAIL:\n");
+            fmpz_poly_print(a), flint_printf("\n\n");
+            fmpz_poly_print(b), flint_printf("\n\n");
+            fmpz_poly_print(c), flint_printf("\n\n");
+            abort();
+        }
+
+        fmpz_poly_clear(a);
+        fmpz_poly_clear(b);
+        fmpz_poly_clear(c);
+    }
+
+    /* Compare with mul_classical */
+    for (i = 0; i < 1000 * flint_test_multiplier(); i++)
+    {
+        fmpz_poly_t a, b, c;
+
+        fmpz_poly_init(a);
+        fmpz_poly_init(b);
+        fmpz_poly_init(c);
+        fmpz_poly_randtest(a, state, n_randint(state, 50), 200);
+
+        fmpz_poly_sqr_KS(b, a);
+        fmpz_poly_sqr_classical(c, a);
+
+        result = (fmpz_poly_equal(b, c));
+        if (!result)
+        {
+            flint_printf("FAIL:\n");
+            fmpz_poly_print(a), flint_printf("\n\n");
+            fmpz_poly_print(b), flint_printf("\n\n");
+            fmpz_poly_print(c), flint_printf("\n\n");
+            abort();
+        }
+
+        fmpz_poly_clear(a);
+        fmpz_poly_clear(b);
+        fmpz_poly_clear(c);
+    }
+
+    /* Compare with mul_classical unsigned */
+    for (i = 0; i < 1000 * flint_test_multiplier(); i++)
+    {
+        fmpz_poly_t a, b, c;
+
+        fmpz_poly_init(a);
+        fmpz_poly_init(b);
+        fmpz_poly_init(c);
+        fmpz_poly_randtest_unsigned(a, state, n_randint(state, 50), 200);
+
+        fmpz_poly_sqr_KS(b, a);
+        fmpz_poly_sqr_classical(c, a);
+
+        result = (fmpz_poly_equal(b, c));
+        if (!result)
+        {
+            flint_printf("FAIL:\n");
+            fmpz_poly_print(a), flint_printf("\n\n");
+            fmpz_poly_print(b), flint_printf("\n\n");
+            fmpz_poly_print(c), flint_printf("\n\n");
+            abort();
+        }
+
+        fmpz_poly_clear(a);
+        fmpz_poly_clear(b);
+        fmpz_poly_clear(c);
+    }
+
+    /* Check _fmpz_poly_sqr_KS directly */
+    for (i = 0; i < 200 * flint_test_multiplier(); i++)
+    {
+        slong len;
+        fmpz_poly_t a, out1, out2;
+
+        len = n_randint(state, 100) + 1;
+        fmpz_poly_init(a);
+        fmpz_poly_init(out1);
+        fmpz_poly_init(out2);
+        fmpz_poly_randtest(a, state, len, 200);
+
+        fmpz_poly_sqr_KS(out1, a);
+        fmpz_poly_fit_length(a, a->alloc + n_randint(state, 10));
+        a->length = a->alloc;
+        fmpz_poly_fit_length(out2, 2 * a->length - 1);
+        _fmpz_poly_sqr_KS(out2->coeffs, a->coeffs, a->length);
+        _fmpz_poly_set_length(out2, 2 * a->length - 1);
+        _fmpz_poly_normalise(out2);
+
+        result = (fmpz_poly_equal(out1, out2));
+        if (!result)
+        {
+            flint_printf("FAIL:\n");
+            fmpz_poly_print(out1), flint_printf("\n\n");
+            fmpz_poly_print(out2), flint_printf("\n\n");
+            abort();
+        }
+
+        fmpz_poly_clear(a);
+        fmpz_poly_clear(out1);
+        fmpz_poly_clear(out2);
+    }
+
+    FLINT_TEST_CLEANUP(state);
+    
+    flint_printf("PASS\n");
+    return 0;
+}