memory-safety improved

src/audio/audioutil.cpp

@@ -176,6 +176,7 @@ bool load_wav_file_header(std::ifstream& file,
     return true;
 }
 
+// after that user must free returned memory by himself!
 char* load_wav(const std::string& filename,
                std::uint8_t& channels,
                std::int32_t& sampleRate,
@@ -192,8 +193,13 @@ char* load_wav(const std::string& filename,
     }
 
     char* data = new char[size];
-
-    in.read(data, size);
-
-    return data;
+    try {
+        in.read(data, size);
+        return data;
+    }
+    catch (const std::exception&) {
+        delete[] data;
+        std::cerr << "ERROR: Could not load wav data of \"" << filename << "\"" << std::endl;
+        return nullptr;
+    }
 }