λ vs ≫= code size

Comparison of 3 different ways for binding functions with parameters in c++. What is of interest here is vast difference (>2x) between lambdas and binds in default (rtti + exceptions) case, and even bigger when both rtti and exceptions are disabled (~3.8x).

See listing for files needed to reproduce this locally. Calling generate.sh will produce every file seen in stats_* directories. All results have been generated using g++ (Ubuntu 4.8.2-19ubuntu1) 4.8.2.

Things of note:

• boost based solution increases in size when compiled without rtti. This is because boost rolls its own solution for rtti.
• but decreases (slightly) when compiled also without exceptions
• best case scenario for boost is worse than any worst case scenario for either of other solutions
• gcc std solution responds very nicely to disabling rtti, and reduces some more when exceptions are removed
• best case for lambda is more than 4 times smaller than worst case for boost and always better significantly than gcc std

For detailed statistics please see stats_gcc directory in listing archive from beggining of the post.