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// Copyright 2008, 2009, 2010 Martin C. Frith
#ifndef IO_HH
#define IO_HH
#include <string>
#include <stdexcept>
#include <fstream>
#include <cassert>
namespace cbrc{
template<typename T> // T should be a vector-iterator or a pointer
void memoryToStream( T beg, T end, std::ostream& s ){
assert( beg < end );
enum { CHUNK_SIZE = 1073741824 }; // need to do big writes in chunks: why?
const char * b = (const char*)&(*beg);
const char * e = (const char*)&(*end);
while( e - b > CHUNK_SIZE ){
s.write( b, CHUNK_SIZE );
b += CHUNK_SIZE;
}
s.write( b, e - b );
}
template<typename T> // T should be a vector-iterator or a pointer
void memoryToBinaryFile( T beg, T end, const std::string& fileName ){
if( beg == end ) return;
std::ofstream file( fileName.c_str(), std::ios::binary );
if( !file ) throw std::runtime_error( "can't open file: " + fileName );
memoryToStream( beg, end, file );
file.close();
if( !file ) throw std::runtime_error( "can't write file: " + fileName );
}
}
#endif
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