roy@phri.UUCP (Roy Smith) (11/06/86)
Back in the "good old days" (i.e. v6) a c source file was only run
through the preprocessor if the first character in the file was a '#'. Are
there any systems out there that still enforce this, or is it strictly a
relic of the past?
--
Roy Smith, {allegra,philabs}!phri!roy
System Administrator, Public Health Research Institute
455 First Avenue, New York, NY 10016
"you can't spell unix without deoxyribonucleic!"mangler@cit-vax.Caltech.Edu (System Mangler) (11/10/86)
In article <2484@phri.UUCP>, roy@phri.UUCP (Roy Smith) writes: > Back in the "good old days" (i.e. v6) a c source file was only run > through the preprocessor if the first character in the file was a '#'. Now I understand why it's so rare to see identifying comments at the beginning of Unix source files! Don Speck speck@vlsi.caltech.edu {seismo,rutgers,nike}!cit-vax!speck
guy@sun.uucp (Guy Harris) (11/10/86)
> > Back in the "good old days" (i.e. v6) a c source file was only run > through the preprocessor if the first character in the file was a '#'. Are > there any systems out there that still enforce this, or is it strictly a > relic of the past? It's strictly a relic of the past. Check out the source code to the 4.3BSD kernel; for example, the most common first character there is "/". -- Guy Harris {ihnp4, decvax, seismo, decwrl, ...}!sun!guy guy@sun.com (or guy@sun.arpa)
jsdy@hadron.UUCP (Joseph S. D. Yao) (11/26/86)
In article <1153@cit-vax.Caltech.Edu> mangler@cit-vax.Caltech.Edu (System Mangler) writes: >In article <2484@phri.UUCP>, roy@phri.UUCP (Roy Smith) writes: >> Back in the "good old days" (i.e. v6) a c source file was only run >> through the preprocessor if the first character in the file was a '#'. >Now I understand why it's so rare to see identifying comments at >the beginning of Unix source files! I don't see that. A bunch of software came out in those days: -------------------- # /*********************************************************************\ ** ** myprog - my program ** ** Syntax: ** myprog [ -option ] [ files ... ] ... etc. ** \*********************************************************************/ #etc. -------------------- I authored some of it, and tried to encourage this kind of documentation in my group. These days, we just lop the first two lines. (For people with line truncators, line 3 ends "**\" and line 11+N ends "**/", just for pretty.) -- Joe Yao hadron!jsdy@seismo.{CSS.GOV,ARPA,UUCP} jsdy@hadron.COM (not yet domainised)