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Monday, September 24 • 11:00 - 12:00
Enough string_view to Hang Ourselves

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Wouldn’t it be nice if we had a standard C++ type to represent strings ? Oh, wait... we do: std::string. Wouldn’t it be nice if we could use that standard type throughout our whole application/project ? Well… we can’t ! Unless we’re writing a console app or a service. But, if we’re writing an app with GUI or interacting with modern OS APIs, chances are that we’ll need to deal with at least one other non-standard C++ string type. Depending on the platform and project, it may be CString from MFC or ATL, Platform::String from WinRT, QString from Qt, wxString from wxWidgets, etc. Oh, let’s not forget our old friend `const char*`, better yet `const wchar_t*` for the C family of APIs…
So we ended up with two string types in our codebase. OK, that’s manageable: we stick with std::string for all platform independent code and convert back-and-forth to the other XString when interacting with system APIs or GUI code. We’ll make some unnecessary copies when crossing this bridge and we’ll end up with some funny looking functions juggling two types of strings; but that’s glue code, anyway… right?
It’s a good plan... until our project grows and we accumulate lots of string utilities and algorithms. Do we restrict those algorithmic goodies to std::string ? Do we fallback on the common denominator `const char*` and lose the type/memory safety of our C++ type ? Is C++17 std::string_view the answer to all our string problems ?
We’ll try to explore our options, together: best practices, gotchas, things to avoid... all in the context of modern C++ projects. 

Speakers
avatar for Victor Ciura

Victor Ciura

Principal Engineer, CAPHYON
Victor Ciura is a Principal Engineer at CAPHYON, Technical Lead on the Advanced Installer team and a Microsoft MVP (Developer Technologies).He’s a regular guest at Computer Science Department of his Alma Mater, University of Craiova, where he gives student lectures & workshops on using C++ STL Algorithms.Since 2005, he has been designing and implementing several core components and libraries of Advanced Installer. Currently, he spends most of his time working with his team on improving and extending the repackaging... Read More →


Monday September 24, 2018 11:00 - 12:00 PDT
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