aCC preprocessor command

[Ryan Keith]

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

thx

[Mike Stroyan]

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}}'

[Ryan Keith]

yeah that works, thx

[Dennis Handly]

>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.