diff --git a/Cereal/Cereal/src/Database.h b/Cereal/Cereal/src/Database.h
index f4818a9..e3f6837 100644
--- a/Cereal/Cereal/src/Database.h
+++ b/Cereal/Cereal/src/Database.h
@@ -73,7 +73,7 @@ namespace Cereal {
 			}
 
 			default:
-				__debugbreak(); break;
+				throw new std::invalid_argument("The version is not valid!"); break;
 			}
 		}
 
@@ -101,7 +101,7 @@ namespace Cereal {
 				break;
 
 			default:
-				__debugbreak(); break;
+				throw new std::invalid_argument("The version is not valid!"); break;
 			}
 
 			return true;
@@ -117,7 +117,7 @@ namespace Cereal {
 				ret += sizeof(short) + name.length() + sizeof(int) + sizeof(short); break;
 
 			default:
-				__debugbreak(); break; // Invalid version
+				throw new std::invalid_argument("The version is not valid!"); break; // Invalid version
 			}
 
 			for (const Object* obj : objects)
diff --git a/Cereal/Cereal/src/Field.h b/Cereal/Cereal/src/Field.h
index 8ece136..c9ece99 100644
--- a/Cereal/Cereal/src/Field.h
+++ b/Cereal/Cereal/src/Field.h
@@ -125,7 +125,7 @@ namespace Cereal {
 				case DataType::DATA_FLOAT: setData<float>(dataType, buffer.readBytes<float>()); break;
 				case DataType::DATA_DOUBLE: setData<double>(dataType, buffer.readBytes<double>()); break;
 				case DataType::DATA_STRING: setData<std::string>(dataType, buffer.readBytes<std::string>()); break;
-				default: __debugbreak(); break;
+				default: throw new std::invalid_argument("The data type is not valid!"); break;
 			}
 		}
 
diff --git a/Cereal/Cereal/src/Header.h b/Cereal/Cereal/src/Header.h
index c4bd272..3955c7b 100644
--- a/Cereal/Cereal/src/Header.h
+++ b/Cereal/Cereal/src/Header.h
@@ -80,7 +80,7 @@ namespace Cereal {
 			buffer.writeBytes<unsigned short>(MAGIC_NUMBER);
 			buffer.writeBytes<byte>((byte)databases.size());
 
-			unsigned int offset = sizeof(short) + sizeof(byte) + (sizeof(unsigned int) * databases.size());
+			unsigned int offset = sizeof(unsigned short) + sizeof(byte) + (sizeof(unsigned int) * databases.size());
 
 			for (unsigned int i = 0; i < databases.size(); i++)
 			{
diff --git a/Cereal/Cereal/src/Internal.h b/Cereal/Cereal/src/Internal.h
index a770008..2a7e447 100644
--- a/Cereal/Cereal/src/Internal.h
+++ b/Cereal/Cereal/src/Internal.h
@@ -20,6 +20,22 @@ namespace Cereal {
 
 	typedef unsigned char byte;
 
+	static_assert(sizeof(byte) == 1, "Invalid byte size!");
+
+	static_assert(sizeof(char) == 1, "Invalid char size!");
+	static_assert(sizeof(short) == 2, "Invalid short size!");
+	static_assert(sizeof(int) == 4, "Invalid int size!");
+	static_assert(sizeof(long) == 4, "Invalid long size!");
+	static_assert(sizeof(float) == 4, "Invalid float size!");
+	static_assert(sizeof(double) == 8, "Invalid double size!");
+
+	static_assert(sizeof(unsigned char) == 1, "Invalid unsigned char size!");
+	static_assert(sizeof(unsigned short) == 2, "Invalid unsigned short size!");
+	static_assert(sizeof(unsigned int) == 4, "Invalid unsigned int size!");
+	static_assert(sizeof(unsigned long) == 4, "Invalid unsigned long size!");
+	static_assert(sizeof(unsigned long long) == 8, "Invalid unsigned long long size!");
+
+
 	enum Version
 	{
 		VERSION_1_0		= 0x0100, // first byte = major version, second = minor (revision)