Need something like macro

[Артём Варнайский]

 Hello, folks!
I have such line:
int rand(2)?1:-1
It repeats in source code 5 times and executes over 800 times, due to 
performance issues, I don't want to wrap it with subroutine. How I can make 
this code more elegant?
Hope you will understand my runhlish. Thank for attention :)