sizeof() O/P

[Keith Thompson]

Given that <stdio.h> was included, the return type of printf is int,
and an int in turbo C is a 16-bit entity.

Given that <stdio.h> *wasn't* included, the compiler assumes that any
unrecognized function returns an int. See my other response on this
thread.

Try again on a modern compiler and you should get 4.

It depends on the system.

 

[Richard Heathfield]

Jan Engelhardt said:

Try again on a modern compiler and you should get 4.

<sigh>
All the world's a PC running a 32-bit compiler.
</sigh>