# Extra Clang Tools 4 documentation

## clang-tidy - modernize-shrink-to-fit

# modernize-shrink-to-fit

Replace copy and swap tricks on shrinkable containers with the `shrink_to_fit()` method call.

The `shrink_to_fit()` method is more readable and more effective than the copy and swap trick to reduce the capacity of a shrinkable container. Note that, the `shrink_to_fit()` method is only available in C++11 and up.