How to send integer with pipe between two processes!

Question

I am trying to send an integer with pipe in a POSIX system but write() function is working for sending string or character data. Is there any way to send integer wi

Answer 1

Aschelpler's answer is right, but if this is something that can grow later I recommend you use some kind of simple protocol library like Google's Protocol Buffers or just JSON or XML with some basic schema.