extra « fprintf « C File Q&A

1. fprintf keeps putting in extra characters I don't want. Can't I stop this?    stackoverflow.com

Im trying to write out an image file that has the following structure:

P5      //magic number
512 512 //dimension of image
255     //max value ...

2. Why does fprintf print extra values    stackoverflow.com

I want to encode tags that will contain a field number and a wire type for the purpose of protocol buffers. The problem that I am having now is that whenever ...