1 files changed, 132 insertions, 0 deletions
diff --git a/src/c/operations/subtraction/testSubtraction.c b/src/c/operations/subtraction/testSubtraction.c
new file mode 100644
index 0000000..ce29e2a
--- /dev/null
+++ b/src/c/operations/subtraction/testSubtraction.c
@@ -0,0 +1,132 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - INRIA - Bruno JOFRET
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <assert.h>
+#include <math.h>
+#include "subtraction.h"
+
+#define SIZE 10000
+
+/* #define LOCAL_DEBUG */
+
+static void zdiffaTest(void) {
+  doubleComplex M1[SIZE];
+  doubleComplex M2[SIZE];
+  doubleComplex M1_but_M2[SIZE];
+
+  int i = 0;
+
+  srand(1);
+  for (i = 0; i < SIZE; ++i) {
+    M1[i] = DoubleComplex((double) rand(), (double) rand());
+    M2[i] = DoubleComplex((double) rand(), (double) rand());
+  }
+  zdiffa(M1, SIZE, M2, SIZE, M1_but_M2);
+  for (i = 0; i < SIZE; ++i) {
+#ifdef LOCAL_DEBUG
+    printf("M1_but_M2 = %e + %e i\n", zreals(M1_but_M2[i]), zimags(M1_but_M2[i]));
+#endif
+    assert(zreals(M1_but_M2[i]) -  (zreals(M1[i]) - zreals(M2[i])) == 0);
+    assert(zimags(M1_but_M2[i]) -  (zimags(M1[i]) - zimags(M2[i])) == 0);
+  }
+}
+
+static void cdiffaTest(void) {
+  floatComplex M1[SIZE];
+  floatComplex M2[SIZE];
+  floatComplex M1_but_M2[SIZE];
+
+  int i = 0;
+
+  srand(1);
+  for (i = 0; i < SIZE; ++i) {
+    M1[i] = FloatComplex((float) rand(), (float) rand());
+    M2[i] = FloatComplex((float) rand(), (float) rand());
+  }
+  cdiffa(M1, SIZE, M2, SIZE, M1_but_M2);
+  for (i = 0; i < SIZE; ++i) {
+#ifdef LOCAL_DEBUG
+    printf("M1_but_M2 = %e + %e i\n", creals(M1_but_M2[i]), cimags(M1_but_M2[i]));
+#endif
+    assert(fabsf(creals(M1_but_M2[i]) -  (creals(M1[i]) - creals(M2[i]))) / creals(M1_but_M2[i]) < 1e-07);
+    assert(fabsf(cimags(M1_but_M2[i]) -  (cimags(M1[i]) - cimags(M2[i]))) / cimags(M1_but_M2[i]) < 1e-07);
+  }
+}
+
+static void sdiffaTest(void) {
+  float M1[SIZE];
+  float M2[SIZE];
+  float M1_but_M2[SIZE];
+
+  int i = 0;
+
+  srand(1);
+  for (i = 0; i < SIZE; ++i) {
+    M1[i] = (float) rand();
+    M2[i] = (float) rand();
+  }
+  sdiffa(M1, SIZE, M2, SIZE, M1_but_M2);
+  for (i = 0; i < SIZE; ++i) {
+#ifdef LOCAL_DEBUG
+    printf("M1_but_M2 = %e\n", M1_but_M2[i]);
+    printf("M1[i] - M2[i] = %e\n", (M1[i] - M2[i]));
+    printf("Error = %e\n",(float) fabsf(M1_but_M2[i] -  (M1[i] - M2[i])) / M1_but_M2[i]);
+#endif
+    assert(fabsf(M1_but_M2[i] -  (M1[i] - M2[i])) / M1_but_M2[i] < 1e-07);
+  }
+}
+
+static void ddiffaTest(void) {
+  double M1[SIZE];
+  double M2[SIZE];
+  double M1_but_M2[SIZE];
+
+  int i = 0;
+
+  srand(1);
+  for (i = 0; i < SIZE; ++i) {
+    M1[i] = (double) rand();
+    M2[i] = (double) rand();
+  }
+  ddiffa(M1, SIZE, M2, SIZE, M1_but_M2);
+  for (i = 0; i < SIZE; ++i) {
+#ifdef LOCAL_DEBUG
+   printf("M1_but_M2 = %e\n", M1_but_M2[i]);
+   printf("M1[i] = %e\n", M1[i]);
+   printf("M2[i] = %e\n", M2[i]);
+   printf("M1[i] - M2[i] = %e\n", (M1[i] - M2[i]));
+   printf("Error = %e\n", fabs(M1_but_M2[i] -  (M1[i] - M2[i])));
+#endif
+    assert(fabs(M1_but_M2[i] -  (M1[i] - M2[i])) == 0);
+  }
+
+}
+
+static int testSubtraction(void) {
+
+  printf("\n>>>> Subtraction Tests\n");
+  sdiffaTest();
+  ddiffaTest();
+  cdiffaTest();
+  zdiffaTest();
+
+  return 0;
+}
+
+
+
+int main(void) {
+  assert(testSubtraction() == 0);
+  return 0;
+}