Category : function-templates-overloading

I’m learning about function template specialization in C++ and am tasked with writing a template function called plus that returns the sum of it’s two arguments which maybe of different types. One version that accepts by value and another by pointer. As an added challenge, I’m asked to overload this function so that it concatenates ..

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How should I modify my present function signature template<class TypeData,typename TypeFunc1 = Identity,typename TypeFunc2> bool isPrime(const TypeData& n,TypeFunc1 calcSqrt = {},TypeFunc2 isDivisible = [](const TypeData& a,const TypeData& b) {return a%b==0;},const bool debug = false) in order to be called from auto fSqrt = [](decltype(n) v) {return std::sqrt(static_cast<float>(v));}; std::cout<<(isPrime(n,fSqrt)?"Positive":"Negative")<<‘n’; Visual Studio 2019 gives C2783 ‘bool isPrime(const ..

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Consider: template <size_t > class SizeFlag {}; template <size_t START, size_t END> void asd(SizeFlag<START>, SizeFlag<END>) { } template <size_t START> void asd(SizeFlag <START>, SizeFlag<START + 1>) { } template <class T> class TypeFlag{}; template <class T,class F> void qwe(TypeFlag<T>,TypeFlag<F>){} template <class T> void qwe(TypeFlag<T>,TypeFlag<T*>){} int main() { asd(SizeFlag<1>{}, SizeFlag<2>{});// call to ‘asd’ is ambiguous in ..

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am trying to overload on the base of the std::function’s parameters passed. I want Execute to be called by the correct implementation, bein A or C base on the parameter of the std::function passed. #include <iostream> #include <functional> struct Camera { int TakePicture() { return 3;} }; struct Antenna { double GetSignal() { return 9.0;} ..

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Below is the pretty short example. #include <utility> template<typename T, typename = void> struct A {}; template<typename T, typename U> void f(A<std::pair<T,U>>) {} template<typename U> void f(A<std::pair<int,U>, std::enable_if_t<std::is_same_v<int,U>>>) {} int main() { A<std::pair<int, int>> x; f(x); } The error is clear enough uffa.cpp: In function ‘int main()’: uffa.cpp:22:4: error: call of overloaded ‘f(A<std::pair<int, int> >&)’ ..

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I have a given function like this: template <typename T, typename F> T function(const F& f) const; This function has various overloads, some of them concept based. Like the following: template <typename T, std::integral F> T function(const F& f) const; template <typename T, std::same_as<double> F> T function(const double& f) const; Now I would like to ..

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template <typename Key,typename Value> void add(SBTNode<Key,Value>*& t, const SBTNode<Key,Value>* x) { if (t==SBTNode<Key,Value>::getPNIL()) { t = x; return;} if (x->key<t->key) add(t->left,x); else if (t->key<x->key) add(t->right,x); else { t->value+=x->value; return; } maintain(t, t->key<x->key); } template <typename Key,typename Value> class SBTree { private: SBTNode<Key,Value>* root; public: SBTree():root(SBTNode<Key,Value>::getPNIL()) {} void add(Key& key,Value& value) { add(root,new SBTNode<Key,Value>(key,value));} }; Here,void ..

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