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Wednesday, September 27 • 4:45pm - 5:45pm
A Soupçon of SFINAE

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Following on Arthur's "Template Normal Programming" from CppCon 2016, this will be a concise cookbook of SFINAE recipes — ways of getting the compiler to do one thing in one circumstance and another thing in another circumstance. The recipes presented will include:
- Partial specialization of struct templates
- std::bool_constant
- std::conditional_t
- Expression SFINAE on return types (using decltype)
- Expression SFINAE in a defaulted template type parameter
- std::enable_if_t as a defaulted template type parameter
- Tag dispatch on std::true_type and std::false_type
- "Meta-tag-dispatch" on true and false as template non-type parameters
- priority_tag<N> for tag dispatch with "fallback" cases
- bool_if_t as a template non-type parameter
In each case, we'll show a real code example where the recipe is the clearest and best way to get the job done. This will draw on Arthur's recent "STL From Scratch".

avatar for Arthur O'Dwyer

Arthur O'Dwyer

Core Engineering, Nominum
Arthur O'Dwyer worked for many years at Green Hills Software, making the world's most optimizing C and C++ compilers. Now he works at Nominum in San Francisco. Arthur is the showrunner of the Bay Area C++ meetup, which meets practically every week these days.

Wednesday September 27, 2017 4:45pm - 5:45pm
Ferranti (403) Meydenbauer Center

Attendees (136)