Adding a method to get the file identifier from a flatbuffer.
Change-Id: Ie28fd1f0b463aac23647d38921600f15c8b7c10a
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@ -1516,9 +1516,21 @@ template<typename T> const T *GetTemporaryPointer(FlatBufferBuilder &fbb,
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return GetMutableTemporaryPointer<T>(fbb, offset);
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}
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/// @brief Get a pointer to the the file_identifier section of the buffer.
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/// @return Returns a const char pointer to the start of the file_identifier
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/// characters in the buffer. The returned char * has length
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/// 'flatbuffers::FlatBufferBuilder::kFileIdentifierLength'.
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/// This function is UNDEFINED for FlatBuffers whose schema does not include
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/// a file_identifier (likely points at padding or the start of a the root
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/// vtable).
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inline const char *GetBufferIdentifier(const void *buf) {
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return reinterpret_cast<const char *>(buf) + sizeof(uoffset_t);
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}
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// Helper to see if the identifier in a buffer has the expected value.
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inline bool BufferHasIdentifier(const void *buf, const char *identifier) {
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return strncmp(reinterpret_cast<const char *>(buf) + sizeof(uoffset_t),
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return strncmp(GetBufferIdentifier(buf),
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identifier, FlatBufferBuilder::kFileIdentifierLength) == 0;
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}
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