--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spandsp-0.0.6pre17/tests/vector_int_tests.c	Fri Jun 25 15:50:58 2010 +0200
@@ -0,0 +1,191 @@
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * complex_vector_int_tests.c
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2006 Steve Underwood
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id: vector_int_tests.c,v 1.11 2009/04/26 07:00:39 steveu Exp $
+ */
+
+#if defined(HAVE_CONFIG_H)
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <string.h>
+
+#include "spandsp.h"
+
+static int32_t vec_dot_prodi16_dumb(const int16_t x[], const int16_t y[], int n)
+{
+    int32_t z;
+    int i;
+
+    z = 0;
+    for (i = 0;  i < n;  i++)
+        z += (int32_t) x[i]*(int32_t) y[i];
+    return z;
+}
+/*- End of function --------------------------------------------------------*/
+
+static int test_vec_dot_prodi16(void)
+{
+    int i;
+    int32_t za;
+    int32_t zb;
+    int16_t x[99];
+    int16_t y[99];
+
+    for (i = 0;  i < 99;  i++)
+    {
+        x[i] = rand();
+        y[i] = rand();
+    }
+
+    for (i = 1;  i < 99;  i++)
+    {
+        za = vec_dot_prodi16(x, y, i);
+        zb = vec_dot_prodi16_dumb(x, y, i);
+        if (za != zb)
+        {
+            printf("Tests failed\n");
+            exit(2);
+        }
+    }
+    return 0;
+}
+/*- End of function --------------------------------------------------------*/
+
+static int32_t vec_min_maxi16_dumb(const int16_t x[], int n, int16_t out[])
+{
+    int i;
+    int16_t min;
+    int16_t max;
+    int16_t temp;
+    int32_t z;
+    
+    max = INT16_MIN;
+    min = INT16_MAX;
+    for (i = 0;  i < n;  i++)
+    {
+        temp = x[i];
+        if (temp > max)
+            max = temp;
+        /*endif*/
+        if (temp < min)
+            min = temp;
+        /*endif*/
+    }
+    /*endfor*/
+    out[0] = max;
+    out[1] = min;
+    z = abs(min);
+    if (z > max)
+        return z;
+    return max;
+}
+/*- End of function --------------------------------------------------------*/
+    
+static int test_vec_min_maxi16(void)
+{
+    int i;
+    int32_t za;
+    int32_t zb;
+    int16_t x[99];
+    int16_t y[99];
+    int16_t outa[2];
+    int16_t outb[2];
+
+    for (i = 0;  i < 99;  i++)
+    {
+        x[i] = rand();
+        y[i] = rand();
+    }
+
+    x[42] = -32768;
+    za = vec_min_maxi16_dumb(x, 99, outa);
+    zb = vec_min_maxi16(x, 99, outb);
+    if (za != zb
+        ||
+        outa[0] != outb[0]
+        ||
+        outa[1] != outb[1])
+    {
+        printf("Tests failed\n");
+        exit(2);
+    }
+    return 0;
+}
+/*- End of function --------------------------------------------------------*/
+
+static int test_vec_circular_dot_prodi16(void)
+{
+    int i;
+    int j;
+    int pos;
+    int len;
+    int32_t za;
+    int32_t zb;
+    int16_t x[99];
+    int16_t y[99];
+
+    /* Verify that we can do circular sample buffer "dot" linear coefficient buffer
+       operations properly, by doing two sub-dot products. */
+    for (i = 0;  i < 99;  i++)
+    {
+        x[i] = rand();
+        y[i] = rand();
+    }
+
+    len = 95;
+    for (pos = 0;  pos < len;  pos++)
+    {
+        za = vec_circular_dot_prodi16(x, y, len, pos);
+        zb = 0;
+        for (i = 0;  i < len;  i++)
+        {
+            j = (pos + i) % len;
+            zb += (int32_t) x[j]*(int32_t) y[i];
+        }
+
+        if (za != zb)
+        {
+            printf("Tests failed\n");
+            exit(2);
+        }
+    }
+    return 0;
+}
+/*- End of function --------------------------------------------------------*/
+
+int main(int argc, char *argv[])
+{
+    test_vec_dot_prodi16();
+    test_vec_min_maxi16();
+    test_vec_circular_dot_prodi16();
+
+    printf("Tests passed.\n");
+    return 0;
+}
+/*- End of function --------------------------------------------------------*/
+/*- End of file ------------------------------------------------------------*/