Buffering issue with printf and scanf in C

[Guenonn]

Discussion Type

Question

Discussion Content

Hi everyone,
I'm currently learning C and running into a small issue. When I use printf right before a scanf inside a loop, the printed text doesn't show up on the screen immediately. It only appears after I type an input for scanf. Is this normal, and how can I force it to display right away? Thanks!

[EliottBDR]

Hi! Yes, this is normal behavior due to standard output buffering. To force the text to display immediately before the scanf execution, you just need to flush the output buffer right after your printf using fflush(stdout);.