Obscure C code (was Re: Excessive optimization)

Looking at what's there, I'd say that it wouldn't surprise me that some compilers would accept it (gcc does) and some might not, but what it's going to do is to loop 14 times, then, using i as a pointer to an array (for which the pointer values will range from 0-13), the loop will sequentially access the Nth element of that array, but since "N" happens to be the fixed address of the string "Hello, World!\n", the effective calculation will be to sequentially point to each character in the string (0+start address, 1+start address...) and feed the "char" at that address to putchar() which will print it to stdout. So... it will iterate across the static string one char at a time, but by doing the pointer math "backwards" from the traditional technique (i.e., a fixed index to a moving array pointer). ?The end result is "Hello, World\n" sent to stdout.