add core files

Classes/cwt_rtwutil.cpp

@@ -0,0 +1,73 @@
+//
+// File: cwt_rtwutil.cpp
+//
+// MATLAB Coder version            : 4.3
+// C/C++ source code generated on  : 30-Mar-2020 11:59:32
+//
+
+// Include Files
+#include "cwt_rtwutil.h"
+#include "cwt.h"
+#include "rt_nonfinite.h"
+#include <cmath>
+#include <math.h>
+#include <string.h>
+
+// Function Definitions
+
+//
+// Arguments    : double u0
+//                double u1
+// Return Type  : double
+//
+double rt_powd_snf(double u0, double u1)
+{
+  double y;
+  double d;
+  double d1;
+  if (rtIsNaN(u0) || rtIsNaN(u1)) {
+    y = rtNaN;
+  } else {
+    d = std::abs(u0);
+    d1 = std::abs(u1);
+    if (rtIsInf(u1)) {
+      if (d == 1.0) {
+        y = 1.0;
+      } else if (d > 1.0) {
+        if (u1 > 0.0) {
+          y = rtInf;
+        } else {
+          y = 0.0;
+        }
+      } else if (u1 > 0.0) {
+        y = 0.0;
+      } else {
+        y = rtInf;
+      }
+    } else if (d1 == 0.0) {
+      y = 1.0;
+    } else if (d1 == 1.0) {
+      if (u1 > 0.0) {
+        y = u0;
+      } else {
+        y = 1.0 / u0;
+      }
+    } else if (u1 == 2.0) {
+      y = u0 * u0;
+    } else if ((u1 == 0.5) && (u0 >= 0.0)) {
+      y = std::sqrt(u0);
+    } else if ((u0 < 0.0) && (u1 > std::floor(u1))) {
+      y = rtNaN;
+    } else {
+      y = pow(u0, u1);
+    }
+  }
+
+  return y;
+}
+
+//
+// File trailer for cwt_rtwutil.cpp
+//
+// [EOF]
+//