no output in terminal window

[Automator]

Hi, simple question, i just installed redhat 8.0 and wrote a quick c program to test.

int main(){
printf("hello");
}
compiles fine
but when i do ./a.out in the terminal i dont see hello, anyone help with this?

thanks

Auto

[Dolda2000]

It might be some buffering settings (or curor relocation by bash). Do printf("hello\n"); instead (which is what I guess that you want anyway).

[majorwoo]

i believe you are right with the buffer - when you don't use the \n you are not forcing the buffer to be flushed, so if you exit the program before it gets around to flushing the buffer - data bye bye (I remember my C teacher ranting about this while Sam and I wrote entire programs in #defines)

[Dolda2000]

No, that's not it. I don't know about other libc implementations, but at least glibc fcloses std{in,out,err} after main exits, which causes them to be flushed. I would rather guess that it's due to some strange terminal buffering settings. On the other hand, I just tried the exact same program, and it worked, getting a new shell prompt directly after (no LF) the hello.

[majorwoo]

i dont know that i am confortable blaming it on the terminal, but you are right about glibc flushing the buffer for you... and i gues that doesn't leave me much else to blame