Is it possible to create the c and c++ program without any header files

Answer 1

Yes: https://code.sololearn.com/ct0SLCG3qDWU/?ref=app

Answer 2

Vlad Serbu although you didn't explicitly included stdio.h the C compiler added it for you, usually c compilers are able to resolve your call to stdio printf by adding the header and leaving a warning.

Anyway the answer is right, Yes.

Answer 3

Good one Vlad Serbu !
I assumed it and I was wrong! Great lesson.

What I've found is that c is able to implicitly declare a function , then the compiler finds a match in the std and links it, but... is undefined behaviour since printf takes variable number of arguments.

That's why it gives warning to define printf or include stdio.h

Answer 4

AZTECCO it's not that it adds the header for you, it's that it links against the standard library.

Answer 5

AZTECCO Another clue is that macros (such as NULL) don't work.

Answer 6

short answer, Yes!