c-protobuf/varint.h

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/***
* handles varint
*/
#ifndef _VARINT_H_
#define _VARINT_H_
#include <stdlib.h>
/**
* Encode an unsigned long long into a varint
* @param n the number to encode
* @param buf where to put the results
* @param len the length of buf
* @param bytes the length written
* @returns a pointer to the buf
*/
unsigned char* varint_encode(const unsigned long long n, unsigned char* buf, int len, size_t* bytes);
/***
* decode a varint
* @param buf the buffer that contains the varint
* @param len the length of the buffer
* @param bytes number of bytes processed
* @returns the value decoded
*/
unsigned long long varint_decode(const unsigned char* buf, int len, size_t* bytes);
/**
*
*/
int varint_encoding_length(unsigned long long n);
#endif