« Why Some Things Make Sense
Somewhat General Update »

C++ Hating

I believed I had this beautiful set of numbers. Then reality struck and they weren't actually there. On one hand, having fake but nice numbers is bad, on the other hand, those numbers were really pretty. And now I sit around reading and thinking about Haskell and hating on C++. Who would have known that j would differ in

 
  std::vector<int> something[numelts];
  something[7].push_back(2);
  int j = something[7][0];
 

and

 
  std::vector<int> something[numelts];
  something[7].push_back(2);
  int j = (something[7])[0];
 

.
The later is correct, the first is wrong, C++ seems to be treating unparenthisized things as normal array lookups, while the parenthisized thing leads to it using operator[] from vector.

panda

This entry was posted on Saturday, September 22nd, 2007 at 11:15 am and is filed under CS, Hacks. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

Viewing 10 Comments

Trackbacks

close Reblog this comment
Powered by Disqus · Learn more
blog comments powered by Disqus