topic Re: aCC preprocessor command in Operating System - HP-UX

aCC preprocessor command

Ryan Keith — Mon, 18 Oct 2004 10:06:03 GMT

aCC -E gives all the preprocessor commands, is there a command to add to just give like the first header file?

thx

Re: aCC preprocessor command

Mike Stroyan — Mon, 18 Oct 2004 10:36:56 GMT

I'm not sure I understand what you are asking for. If you want to know which header files are used by a compilation, you could grep for the lines that show the header file names.

aCC -E prog.cpp | grep '^#line 1 '

This more complicated filter will indent based on how many includes deep the header file is.

awk '/^#line.*"/{if($2==1){printf "%"i"s%s\n"," ",$NF;i+=1}else{i-=1}}'

Re: aCC preprocessor command

Ryan Keith — Mon, 18 Oct 2004 11:43:20 GMT

yeah that works, thx

Re: aCC preprocessor command

Dennis Handly — Wed, 28 Dec 2011 12:21:39 GMT

>This more complicated filter will indent based on how many includes deep the header file is.

The -H option was added to write include info to stderr.