Der ehrgeizlose Programmierer

Who’d have thought:

1. that DOS backslashes in C include paths aren’t only ugly and a pain, but also not legal* C:
   

   If the characters ‚, \, „, //, or/* occur in the sequence between the < and > delimiters, the behavior is undefined. Similarly, if the characters ‚, \, //, or /* occur in the sequence between the “ delimiters, the behavior is undefined. A header name preprocessing token is recognized only within a #include preprocessing directive.

   (C99 6.4.7.3)

2. … the C99 Standard is available for free online This links directly to the pdf containing the current standard, which lives here.
3. It’s easy to fix:

   find . -name '*.[c|h]' -print0 | xargs -0 \
      ruby -i.bak -pe 'scan(/^\s*#include.*/){ gsub(/\\/, "/") }'
   

* yeah, I know, it’s legal just undefined.
** this post inspired by this.

This entry was posted on Samstag, September 27th, 2008 at 16:04 and is filed under Allgemein, c, Crap, Fundstücke, Programming, ruby, snippet. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.