How to use "read_bool"?

[Zeh]

Thanks for the help, but i tryed both solutions posted and still 
not working. :/

I get erros to compile the code posted by simendsjo. I try modify 
at my own, but without success. The code suggest by Timon Gehr 
compiles, but not work.

Honestly speaking, i didn't have enough knowledge to understand 
the solutions offered (yet). What is the smallest way to use the 
"read_bool"?


Besides, one version of that tutorial in portuguese would be 
great =D