dyer (11/20/82)
In the pre-phototypesetter V6 distribution of C, the C preprocessor was only run on a source file if the first char of the file was a '#'. I guess this was for efficiency--you see, the STDIO package hasn't yet been invented, and MANY C programs didn't use the features of CPP at all. It took me a long while to get out of the habit of always including a '#'; indeed, I preferred the form: # #include "xx.h" with a '#' as a line of its own. /Steve Dyer