First commit

file_deserialising.cpp

@@ -0,0 +1,66 @@
+#include "file_deserialising.h"
+
+
+template <typename T>
+T read_type(char *data)
+{
+	T a;
+
+	std::memcpy(&a, data, sizeof(T));
+
+	switch (sizeof(T))
+	{
+		case 1:
+			break;
+		case 2:
+			a = be16toh(a);
+			break;
+		case 4:
+			a = be32toh(a);
+			break;
+		case 8:
+			a = be64toh(a);
+			break;
+		default:
+			std::println("This integer is not supported!");
+	}
+	return a;
+}
+
+template <>
+float read_type<float>(char *data)
+{
+	uint32_t num_as_uint32;
+	float num;
+
+	memcpy(&num_as_uint32, data, sizeof(uint32_t));
+	num_as_uint32 = be32toh(num_as_uint32);
+	memcpy(&num, &num_as_uint32, sizeof(float));
+
+	return num;
+}
+
+template <>
+double read_type<double>(char *data)
+{
+	uint64_t num_as_uint64;
+	double num;
+
+	memcpy(&num_as_uint64, data, sizeof(uint64_t));
+	num_as_uint64 = be64toh(num_as_uint64);
+	memcpy(&num, &num_as_uint64, sizeof(double));
+
+	return num;
+}
+
+
+template <typename Integer, Integer ...I, typename F> constexpr void const_for_each_(std::integer_sequence<Integer, I...>, F&& func)
+{
+	(func(std::integral_constant<Integer, I>{}), ...);
+}
+
+template <auto N, typename F> constexpr void const_for_(F&& func)
+{
+	if constexpr (N > 0)
+		const_for_each_(std::make_integer_sequence<decltype(N), N>{}, std::forward<F>(func));
+}