What is the difference b/w iostream & iostream.h

Question

are both header files???

Answer 1

Use <iostream> because it is guaranteed by the standard to exist. It's worth noting that the only standard headers that end with .h are the C standard library headers. All C++ standard library headers do not end with .h . It just depends on the name of the file provided by your toolchain.

Gud Luk!

-bErN