#include <fstream>
#include <iostream>
#include <string>

int main(int argc, char* argv[])
{
	if ( argc < 2 )
		return 1;
	std::string infilename(argv[1]);
	std::ifstream input(infilename);
	if ( ! input )
		return 2;

	std::string outfilename = infilename.substr( 0, infilename.find_last_of('.') ) + ".bin";
	std::ofstream output(outfilename, std::ofstream::binary);
	if ( ! output )
		return (void)(std::cerr << "error: could not create" << outfilename << std::endl), 3;

	size_t rows = 0, cols = 0;
	input >> rows >> cols;
	output.write(reinterpret_cast<const char*>(&rows), sizeof(size_t));
	output.write(reinterpret_cast<const char*>(&cols), sizeof(size_t));

	for (size_t row = 0; row < rows; ++row)
	{
		for (size_t col = 0; col < cols; ++col)
		{
			double value = 0.0;
			input >> value;
			output.write(reinterpret_cast<const char*>(&value), sizeof(double));
		}
	}

	return 0;
}