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c++ Programming Glossary: metafunctionC++ iterate into nested struct field with boost fusion adapt_struct http://stackoverflow.com/questions/12084781/c-iterate-into-nested-struct-field-with-boost-fusion-adapt-struct solution uses Fusion Sequence adaptation of structs and a metafunction that walks object members recursively using Boost.TypeTraits..
A workaround for partial specialization of function template? http://stackoverflow.com/questions/12237126/a-workaround-for-partial-specialization-of-function-template of function template Consider the following metafunction for an integral pow it is just an example class Meta template..
Conveniently Declaring Compile-Time Strings in C++ http://stackoverflow.com/questions/15858141/conveniently-declaring-compile-time-strings-in-c type constexpr auto operator _s const char s size_t n Some metafunction using `s` This results in a compile error because s is not a.. Size constexpr auto string const char array Size Some metafunction using `array` As before we run into the problem that the array..
Template typedefs - What's your work around? http://stackoverflow.com/questions/26151/template-typedefs-whats-your-work-around Do you feel its worth it The canonical way is to use a metafunction like thus template typename T struct my_string_map typedef std..
decltype, result_of, or typeof? http://stackoverflow.com/questions/2763824/decltype-result-of-or-typeof . Here is its documentation under GCC. result_of is a C 11 metafunction introduced in TR1 . It is a template which takes a callable..
Alternative to template declaration of typedef http://stackoverflow.com/questions/3708593/alternative-to-template-declaration-of-typedef being you can approach the problem in two ways through a metafunction or by abusing inheritance. namespace NTL metafunction template.. a metafunction or by abusing inheritance. namespace NTL metafunction template typename T struct vector_1 typedef std valarray T type..
C++ metafunction to determine whether a type is callable http://stackoverflow.com/questions/5100015/c-metafunction-to-determine-whether-a-type-is-callable metafunction to determine whether a type is callable Is it possible to write.. whether a type is callable Is it possible to write a C 0x metafunction that determines whether a type is callable By callable type.. of these but that's not absolutely necessary . EDIT The metafunction should detect the presence of an operator with any signature..
Obtaining const_iterator from iterator http://stackoverflow.com/questions/5105918/obtaining-const-iterator-from-iterator const_iterator from iterator Is there a metafunction f that maps an iterator to its corresponding const_iterator.. share improve this question I am not aware of such a metafunction. Not all iterators have a corresponding const_iterator. E.g... const_iterator. E.g. insert_iterator. So such a metafunction would need to decide what it is going to do in such cases. ..
When should I use typedef in C++? http://stackoverflow.com/questions/516237/when-should-i-use-typedef-in-c value to obtain the resulting type. E.g. consider a simple metafunction for converting a pointer type to its base type template typename..
Isn't the template argument (the signature) of std::function part of its type? http://stackoverflow.com/questions/5931214/isnt-the-template-argument-the-signature-of-stdfunction-part-of-its-type can be found here which relies on the get_signature metafunction that is partially specialized on function pointer types and..
C++0x error with constexpr and returning template function http://stackoverflow.com/questions/6740671/c0x-error-with-constexpr-and-returning-template-function to one. In this respect they are different from a metafunction and a regular function. Consider the problem of returning the.. an integer Regular function int f int i return i 1 Regular metafunction template int I struct g static constexpr auto value I 1 constexpr.. int h int i return i 1 Then... runtime context the metafunction can't be used int i std cin i f i Okay g i value Invalid h i..
Checking a member exists, possibly in a base class, C++11 version http://stackoverflow.com/questions/9530928/checking-a-member-exists-possibly-in-a-base-class-c11-version method in baseclasses. Is there an implementation of this metafunction that both finds reserved in baseclasses of T and still works..
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