CODEWITHSUNDEEP
c++protocol-buffers
Martin G
Martin G

Reputation: 18109

How to read data written by google::protobuf::io::CodedOutputStream::WriteVarint32ToArray

I'm using this method in google::protobuf::io::CodedOutputStream to write variable length encoded integers to a buffer:

static uint8 * WriteVarint32ToArray(uint32 value, uint8 * target)

What is the corresponding method to read the same value?

I see these in the documentation:

static const uint8 * ReadLittleEndian32FromArray(const uint8 * buffer, uint32 * value)
static const uint8 * ReadLittleEndian64FromArray(const uint8 * buffer, uint64 * value)

But none that seems to do what I need. I was expecting a ReadVarint32FromArray but this seems unavailable. Since I read an write a memory buffer and not a stream, i need a static method like the one uesd for writing.

The documentation: https://developers.google.com/protocol-buffers/docs/reference/cpp/google.protobuf.io.coded_stream

Upvotes: 1

Views: 661

Answers (1)

Igor Tandetnik
Igor Tandetnik

Reputation: 52471

CodedInputStream::ReadVarint32. There's no static version, you would need to actually instantiate a CodedInputStream backed by your array; there's a constructor taking pointer and size.

Upvotes: 2

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