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annotate include/core/bit_cast.h @ 370:ea3a74ed2ef9

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author Paper <paper@tflc.us>
date Fri, 25 Jul 2025 10:22:04 -0400
parents 47c9f8502269
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1 #ifndef MINORI_CORE_BIT_CAST_H_
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2 #define MINORI_CORE_BIT_CAST_H_
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3
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4 /* XXX need to move more "core" stuff into the minori namespace */
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5
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6 #include <cstring>
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7 #include <memory>
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8 #include <type_traits>
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9
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10 namespace minori {
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11
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12 /* C++17 doesn't have this unfortunately */
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13 template<typename To, class From>
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14 To BitCast(From from)
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15 {
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16 static_assert(sizeof(From) == sizeof(To), "Types must match sizes");
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17 static_assert(std::is_pod<From>::value, "Requires POD input");
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18 static_assert(std::is_pod<To>::value, "Requires POD output");
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19
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20 To to;
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21 std::memcpy(std::addressof(to), std::addressof(from), sizeof(from));
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22 return to;
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23 }
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24
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25 } // namespace minori
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27 #endif /* MINORI_CORE_BIT_CAST_H_ */