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