[Dev-C++] Why does this work???

[Santiago <sa...@ho...>]

Hi all,
In the two books I have, it says that in order to use the C-Style =
function strcmp, I need to #include <string.h>. I tried the following in =
compilers including DevC++ and it works.......?
//no includes.....
int main()
{
    char a[] =3D "Hello";
   int i =3D strcmp(a, "There");
    return 0;
}

To better show you, I didn't use any #include. Anyone has any idea as to =
why this program compiles? If iostream.h is added and if you cout<<i =
then it shows the returned value.

Thanks for your feedback.

San