August 2017
Intermediate to advanced
438 pages
14h 19m
English
Content preview from Boost C++ Application Development Cookbook - Second Edition
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How it works...
We saw boost::system::error_code in action in almost all the recipes in Chapter 6, Manipulating Tasks. It can store information about errors and is widely used all around Boost libraries.
If you do not provide an instance of boost::system::error_code to the Boost.Filesystem functions, the code will compile well. In that case, when an error occurs, a boost::filesystem::filesystem_error exception is thrown.
Take a careful look at step 3. We used the boost::filesystem::create_directories function, not boost::filesystem::create_directory, because the latter one cannot create sub-directories. It is the same story with boost::filesystem::remove_all and boost::filesystem::remove. The first can remove non empty directories, that contain ...
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