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    C++ backports Library

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■Purpose
 1. To reimplement new library features which added at C++11 within
    C++03 standards, and reinforce the C++03 statndard library features.
 2. To minimize the migration cost when GCC officially supports C++11.

■Implementation status of each modules

■How to use

○array

○chrono

○functional

○memory

○mutex
  <リファレンス>
  https://sites.google.com/site/cpprefjp/reference/mutex

○ratio

○system_error

○type_traits

○utility