i am a student of architecture... and during my research i came across a cpp program associated with architectural programming.. but i am having probs understanding it as my knowledge in cpp is only the very basics...
can someone please tell me what does the following [which is a part of the program] do?

ofstream maud(surfaces.dxf);

void main()
{ ......
......
maud<<"/n<<x[i][j];
.......
maud.close();
}

there is no compiling error but there is no output either...
pl explain esp what the first line means esp the 'surface.dxf within the brackets
thanks