It is known that code bloat significantly increases build times in C++. The question is: how can we quantify code bloat? How can we see things which are compiled too many times or the things which generate too much object code? How can we know which places would benefit most from improvement efforts?

This article is about an excellent tool called SymbolSort, which produces useful code bloat statistics in a project of any size. In particular, the article describes a few improvements which I have implemented recently to provide more useful analysis.

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The C++ language is known for its slow build times. This problem is not present in the world of pure C, which might give a hint that the problem is caused by some C++ feature. In fact, it is caused by bad habit or writing code in headers, severely worsened by C++ templates and inspired by STL itself.

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