50 lines
1.1 KiB
C++
50 lines
1.1 KiB
C++
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#ifndef PROTOZERO_BYTESWAP_HPP
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#define PROTOZERO_BYTESWAP_HPP
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/*****************************************************************************
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protozero - Minimalistic protocol buffer decoder and encoder in C++.
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This file is from https://github.com/mapbox/protozero where you can find more
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documentation.
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*****************************************************************************/
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#include <cassert>
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namespace protozero {
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template <int N>
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inline void byteswap(const char* /*data*/, char* /*result*/) {
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assert(false);
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}
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template <>
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inline void byteswap<1>(const char* data, char* result) {
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result[0] = data[0];
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}
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template <>
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inline void byteswap<4>(const char* data, char* result) {
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result[3] = data[0];
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result[2] = data[1];
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result[1] = data[2];
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result[0] = data[3];
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}
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template <>
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inline void byteswap<8>(const char* data, char* result) {
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result[7] = data[0];
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result[6] = data[1];
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result[5] = data[2];
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result[4] = data[3];
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result[3] = data[4];
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result[2] = data[5];
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result[1] = data[6];
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result[0] = data[7];
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}
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} // end namespace protozero
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#endif // PROTOZERO_BYTESWAP_HPP
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