Reading character matrix from file

main.cpp

#include <cassert>

#include <iostream>
#include <fstream>
#include <vector>
#include <iterator>


std::vector< std::string >
getContainerFromFile( const std::string& fileName )
{
  std::vector< std::string > ret;
  std::ifstream matrixFile( fileName.c_str() );

  std::string line;
  while ( std::getline( matrixFile, line ) )
  {
    ret.push_back( line );
  }

  return ret;
}


int main( int argc, char* argv[] )
{
  assert( argc > 1 && "No filename argument passed." );

  std::vector< std::string > matrix( getContainerFromFile( argv[ 1 ] ) );
  std::copy( matrix.begin(), matrix.end(), std::ostream_iterator< std::string >( std::cout, "\n" ) );

  return 0;
}

matrix1

..........
...X......
...X......
...X......
..........
..........
..........
..........
....XXX...
..........