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#ifndef __MIDILLO_UTIL_H
#define __MIDILLO_UTIL_H
#include <istream>
#include <ostream>
/**
* @file
* @brief utilities
*/
namespace midillo {
using std::istream;
using std::ostream;
/**
* read 32 bits word from the stream
* @param s input stream
* @return the data acquired
*/
unsigned long read32(istream& s);
/**
* read 16 bits word from the stream
* @param s input stream
* @return the data acquired
*/
unsigned int read16(istream& s);
/**
* read the variable length quantity from the stream
* @param s input stream
* @return the data acquired
*/
unsigned long readVL(istream& s);
/**
* write 32 bits word to the stream
* @param s output stream
* @param d data to write
*/
void write32(ostream& s,unsigned long d);
/**
* write 16 bits word to the stream
* @param s output stream
* @param d data to write
*/
void write16(ostream& s,unsigned int d);
/**
* write the variable length quantity to the stream
* @param s output stream
* @param d data to write
*/
void writeVL(ostream& s,unsigned long d);
/**
* calculate the amount of data that would be written by writeVL
* @param d data that would be written
* @return the number of bytes
*/
unsigned long calcVLsize(unsigned long d);
}
#endif /* __MIDILLO_UTIL_H */
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