Comments in C: "//" vs. "*/ /*"

Hi,
is this type of comment supported in ANSI C:

Code:

---

printf("Hello World\n");  // Prints "Hello World"

---

Because I am not sure if it could be used only in C++.

Thanks.

yes it is

Thanks.

Not in C89. But a lot of compilers support it as an extension (it was however made standard in C99).

And ANSI C *usually* refers to C89 -- so the answer is no.