Implement simple model validation

examples/alexnet/main.cpp

@@ -109,6 +109,9 @@ int main(int argc, const char* const argv[]) {
     const int outputSize = 1000;
 
     CUDANet::Model *model = createModel(inputSize, inputChannels, outputSize);
+
+    model->validate();
+
     model->loadWeights(modelWeightsPath);
 
     // Read and normalize the image

include/model/model.hpp

@@ -36,6 +36,8 @@ class Model {
 
     void loadWeights(const std::string& path);
 
+    bool validate();
+
   private:
     Layers::Input*  inputLayer;
     Layers::Output* outputLayer;

src/model/model.cpp

@@ -148,3 +148,22 @@ void Model::loadWeights(const std::string& path) {
 
     file.close();
 }
+
+bool Model::validate() {
+    
+    bool valid = true;
+    int size = inputLayer->getInputSize();
+
+    for (const auto& layer : layers) {
+        if (layer.second->getInputSize() != size) {
+            valid = false;
+            std::cerr << "Layer: " << layer.first << " has incorrect input size, expected " << size << " but got "
+                      << layer.second->getInputSize() << std::endl;
+            break;
+        }
+
+        size = layer.second->getOutputSize();
+    }
+
+    return valid;
+}