published by dereine on 29. May 2011 - 12:17
We are doing some numeric calculations for university directly in c++, so it's as fast as possible.
One thing which makes c++ such fast are the compiler optimisations which helps to reduce the amount of code and speed things up by applying some logic.
For example
if (a + b > b)
can be converted to
if (a > 0)
You think this is a good optimisation? Often yes but in general no. Here is an example which cost me more then one day of debugging/deassembling etc.
