clear up codedex of C++

mindspore/ccsrc/pybind_api/random_normal/philox_generator.h

@@ -33,6 +33,8 @@ class PhiloxGenerator {
     counter_[3] = static_cast<uint32_t>(seed_ >> 32);
   }
 
+  ~PhiloxGenerator() = default;
+
   void Jump();
 
   void JumpStep(uint64_t step);

mindspore/ccsrc/pybind_api/random_normal/random_cpu_kernel.cc

@@ -65,6 +65,6 @@ bool InitRandomNormal(float mean, float stddev, std::vector<int64_t> out_shape,
 }
 
 REGISTER_PYBIND_DEFINE(random_normal,
-                       ([](py::module *m) { (void)m->def("random_normal", &InitRandomNormal, "testnormal"); }));
+                       ([](py::module *const m) { (void)m->def("random_normal", &InitRandomNormal, "testnormal"); }));
 
 }  // namespace mindspore

mindspore/ccsrc/pybind_api/random_normal/random_cpu_kernel.h

@@ -38,7 +38,7 @@ class NormalDistribution<T, float> {
     const uint32_t exp = static_cast<uint32_t>(127);
     const uint32_t val = (exp << 23) | temp_value;
     errno_t mem_ret;
-    mem_ret = memcpy_s(output, sizeof(val), &val, sizeof(val));
+    mem_ret = memcpy_s(output, sizeof(float), &val, sizeof(uint32_t));
     if (mem_ret != EOK) {
       MS_LOG(ERROR) << "UInt32ToFloat32 memcpy is failed";
       return false;
@@ -71,10 +71,13 @@ bool FillRandoms(PhiloxGenerator generator, float *output, int64_t vet_size, int
   generator.JumpStep((vet_size * thread_Id + gResultNum - 1) / gResultNum);
   for (int32_t i = 0; i < vet_size; i += gResultNum) {
     auto outputResult = distribution(&generator);
+    size_t max_length = 0;
     if (vet_size - i >= gResultNum) {
-      mem_ret = memcpy_s(&output[i], gResultNum * sizeof(float), &outputResult[0], gResultNum * sizeof(float));
+      max_length = gResultNum * sizeof(float);
+      mem_ret = memcpy_s(&output[i], max_length, &outputResult[0], max_length);
     } else {
-      mem_ret = memcpy_s(&output[i], (vet_size - i) * sizeof(float), &outputResult[0], (vet_size - i) * sizeof(float));
+      max_length = (vet_size - i) * sizeof(float);
+      mem_ret = memcpy_s(&output[i], max_length, &outputResult[0], max_length);
     }
     if (mem_ret != EOK) {
       MS_LOG(ERROR) << "FillRandoms memcpy is failed";