Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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66 lines
2.4 KiB
66 lines
2.4 KiB
// Protocol Buffers - Google's data interchange format |
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// Copyright 2023 Google LLC. All rights reserved. |
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// https://developers.google.com/protocol-buffers/ |
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// |
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// Redistribution and use in source and binary forms, with or without |
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// modification, are permitted provided that the following conditions are |
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// met: |
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// |
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// * Redistributions of source code must retain the above copyright |
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// notice, this list of conditions and the following disclaimer. |
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// * Redistributions in binary form must reproduce the above |
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// copyright notice, this list of conditions and the following disclaimer |
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// in the documentation and/or other materials provided with the |
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// distribution. |
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// * Neither the name of Google LLC nor the names of its |
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// contributors may be used to endorse or promote products derived from |
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// this software without specific prior written permission. |
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// |
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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#ifndef UPB_WIRE_INTERNAL_SWAP_H_ |
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#define UPB_WIRE_INTERNAL_SWAP_H_ |
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// Must be last. |
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#include "upb/port/def.inc" |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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UPB_INLINE bool _upb_IsLittleEndian(void) { |
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int x = 1; |
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return *(char*)&x == 1; |
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} |
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UPB_INLINE uint32_t _upb_BigEndian_Swap32(uint32_t val) { |
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if (_upb_IsLittleEndian()) return val; |
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return ((val & 0xff) << 24) | ((val & 0xff00) << 8) | |
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((val & 0xff0000) >> 8) | ((val & 0xff000000) >> 24); |
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} |
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UPB_INLINE uint64_t _upb_BigEndian_Swap64(uint64_t val) { |
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if (_upb_IsLittleEndian()) return val; |
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return ((uint64_t)_upb_BigEndian_Swap32((uint32_t)val) << 32) | |
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_upb_BigEndian_Swap32((uint32_t)(val >> 32)); |
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} |
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#ifdef __cplusplus |
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} /* extern "C" */ |
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#endif |
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#include "upb/port/undef.inc" |
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#endif /* UPB_WIRE_INTERNAL_SWAP_H_ */
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