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_ZN5boost6chrono12steady_clock3nowEv => libboost_timer

_ZN5boost24scoped_static_mutex_lockC1ERNS_12static_mutexEb => libboost_regex or  libboost_graph

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Don't assume "Unicode" is 16-bytes
Size of Unicode differs on various frameworks / system. Unicode just means it can store all characters possible but makes no statement about the storage size. On one framework it could be stored in UTF-8 and thus have varying size while on other system it could be stored in UTF-16 or also UTF-32.

The size of one character is variable
If you store a letter in UTF-8, UTF-16 or "Unicode", you must make no assumption about the byte length of storage - these are variable-length storage.

Fixed-size unicode
To have fixed-size unicode use UTF-32 where characters are always saved on 4-bytes whatever the language or character.

About windows API
sizeof(variable) gives you the size in bytes.
Most windows functions to convert have parameters in character size (not bytes!)

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