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Questions tagged [template-specialization]

Template specialization refers to programmer-generated explicit specialization of templates for specific types.

Templates refer to the ability to write code that works for any type satisfying the operations used within the class and/or function on that type. Template specialization refers to the ability for the programmer to explicitly change the code for a given type, either by a partial specializion of the template (in which a subset of parameters are specialized over), or a full specialization of the template (where all parameters are specialized).

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template class specialization - how to pass the template argument to constructor?

I have the following code (simplified here for readability): enum id_t {B, C, D}; template class class_name; template class class_name { public: void member_func() { /* do something related…
user4546925
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How to create compile-time templatized set/array/vector with fibonacci numbers using templates?

I have a class template template class A { static_assert(std::is_arithmetic::value, "U type must be arithmetic"); public: const std::set fibonacci = ???; //May be any structure with…
Jecke
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Template specialization using another class that implicit-converts to it

I don't know if this is possible, but I would like to understand better how this works. Can a class implict convertsion operation be used to match a template parameter? This is what I want to do. #include template struct…
Rangel Reale
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Partial specialization for destructor

I am just working on my school homework, and I am interested if C++ could create specialized destructor for pointers. I know that this is not good practice, but because of performance, I want to do it this way. Also because I am curious about it. So…
Patrik Valkovič
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C++ template function resolution

I've got the following sample code and would like to get some help to understand why I am unable to compile it using clang and g++ on Linux? #include using namespace std; typedef enum COLORS { RED = 0, GREEN, BLUE, …
TheBadCat
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Template class with virtual member: linker error

Consider the following code. A is an abstract, generic class; B both implements and specializes it. This code seems trivially correct to me, but for some reason I end up with strange linker errors. template class A { public: …
Carl Patenaude Poulin
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How to specialize a type based on whether a template parameter has an alias

I want to be able to specialize a type based on whether a container has a specified typedef for example class SomethingElse {}; class Something { using Type = int; }; static constexpr bool value = ChooseIfType::value; Is there a way…
Curious
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Is it possible for a specialized version to share some functionalities with the original template class?

Is it possible for a specialized version of a class to share some or all functionalities of the original template class? i.e. consider there is a template class, template class A { A() {} A(const A& ref) {} void…
Saif
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specialization of member function of templated class

there: What is the result of the following codes? foo.h #include template struct Foo { void print() { std::cout << "foo\n"; } }; foo.cxx #include "foo.h" template<> void Foo::print() { std::cout <<…
Dongik Shin
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Template Specialization of class method. "Function template already defined"

I've seen lots of SO questions about specialization in the context of methods, but not functions belonging to classes. I'm having a hard time translating the knowledge passed on from those questions to my problem here. I'm mucking around with a…
user819640
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Template specialization for classes which have a certain method

I have a templated method of a Lua State class, which tests if the object at a given index is of a given type: template bool is(int idx) { return luaL_testudata(L, idx, std::remove_pointer::type::name) != NULL; }; and a few…
Rena
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Specialization of templates with constraints in C++

I'm trying to implement managed->native converter in c++/cli. There are about 20 types to convert so I'm trying to use templates for this. The problem is that I should handle values types and reference types differently. Here is what I'm trying to…
Dmitry Katkevich
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Instantiating an overload of std::less outside of class that is being specialized

I am having a design problem with my code. I want to be able to an std::map with a key value pair of pcl::PointCloud and LidarFile(my own created class), but that requires the < operator to be overloaded since std::map uses comparisons, OR the…
wfehrnstrom
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Pass-by-reference template functions with `const char *` specialisation

I have a template function: template void foo(T const & t); And some specialisations of that function: template<> void foo(int const & t) { cout << t << endl; } template<> void foo(const char * const & t) { cout…
Tom
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Why explicit instantiation in template specialization is giving me error?

Consider the code: ... template void Swap(T &,T &); template <> void Swap(structEmployee &,structEmployee &); int main() { template void Swap(char &,char &); short a=10,b=20; ... Swap(a,b); ... ... } It is giving…
dlp96
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