Questions tagged [template-classes]
184 questions
1
vote
1 answer
Access to a member data via a class template specialisation
I can not access the member data "value" defined in the template class from the specialized one. Why?
Some one can help me?
Thanks
template
class A {
public:
int value;
A() {
value = 0;
}
};
template <> class A…
thewoz
- 499
- 2
- 4
- 23
1
vote
2 answers
Initializing a template constructor with a size_t type variable
I have a class, with a template constructor :
class x
{
public:
template
x(int matrix[N][N])
{
A ob(matrix);
}
};
in main function :
int main()
{
size_t s;
cin >> s;
int m[s][s];
x ob(m);…
Code Devil
- 17
- 7
1
vote
2 answers
VS Code/MinGW intellisence not working for C++
I have a template class in my header file, I also need a .hpp file for the function implementation.
The issue is with VS Code or MinGW.
In VS Code:
I installed the C/C++ extension by Microsoft
Here is my c_cpp_properties.json…
Spencer Apel
- 31
- 2
- 11
1
vote
1 answer
Is it possible to store function parameters as some kind of list
I have a base class
template
class Base
{
public:
Base(T foo = T())
{
for(int i = 0; i < 10; i++)
foos.push_back(foo);
}
private:
std::vector foos;
}
and I have a derived class
class Derived :…
po0l
- 98
- 8
1
vote
1 answer
Template specialization with another template
Say I have two template classes
template < class T >
class Foo
{
/**/
};
and
template < class T >
class Bar
{
/**/
};
how can I specialise Foo with Bar ??
what is the syntax??
is it
template<>
template
class Foo>
{…
WARhead
- 643
- 5
- 17
1
vote
2 answers
Template typedef is not a class or namespace name
I'm writing a template class which should behave like a container. Inner data is a vector of smart pointers to the generic class T.
Header
#include
#include
namespace Foo
{
template
class AstrContainer
…
Patrizio Bertoni
- 2,582
- 31
- 43
1
vote
2 answers
Is there a way to check what datatype a template is?
Say I have the following code:
template
int Hash::hf(const K& key)
{
if(K == typeid(string))
{
return MurmurHash2(key.c_str(), key.size());
}
else
{
…
Iriketurtles
- 33
- 5
1
vote
1 answer
How can a template class be an attribute of another template class of the same type T in c++?
I have a template class Tripla (node for a list structure) and another template class Lista. I want to make them generic so they can reused in the future, however I'm not sure how to set the data type to the Tripla objects from the class…
samAtSchool
- 13
- 3
1
vote
2 answers
partial specialization of a static const member variable
Currently, I've implemented a template class Mat that's a wrapper around the matrix class of a third party library (T is the type of the components: double, int, etc.). Now, I wish to implement a Tensor class uses one Mat for storage and a second…
Luis Negrete
- 43
- 1
- 6
1
vote
2 answers
how to adjust a c++ code to work with template class
Following codes are part of a Red Black Tree program which has to take item as a char or int, so I decided to use a template class, however I don't know how to extend it through the complete program and the compiler sends me thousand errors:
The…
Bahador
- 75
- 1
- 11
1
vote
1 answer
c++ store a reference to a pure virtual class as member of class
I have a templated wrapper containing an instance of a class which inherits of a pure virtual class.
My problem is how to store the data inside the wrapper.
- I can't use a copy because pure virtual classes can't be instanciated (or sliced if I use…
Antoine
- 910
- 1
- 9
- 26
1
vote
0 answers
Doxygen Inheritance Diagrams: Template Classes
I currently use doxygen to create documentation for a project. Recently, a small part of this project started using template programming and the resulting inheritance diagrams created by doxygen do not really fit into the rest of the…
Gregor de Cillia
- 7,397
- 1
- 26
- 43
1
vote
2 answers
Can a class inherit from another class template concretized by itself?
I was going through some code and I found something like this:
class GarbageCollectorProcess : public process::Process
I was wondering if this was a valid thing to do. If yes, shouldn't this lead to some kind of a self…
ibp73
- 650
- 1
- 6
- 16
1
vote
2 answers
Can keyword "explicit" be removed from a constructor in one specific template instantiation?
I'm trying to create a template class to enforce dimensional correctness (length divided by time gives speed, and so on).
The short story: "Dimensionless" is one of the possible instantiations. It would be convenient if I could allow all…
user1476176
- 1,045
- 1
- 7
- 15
1
vote
1 answer
Drawing a Template Class in UML
I have a problem drawing a template class diagram in UML.
I know that in UML a template class should have a small rectangle in the up right corner of the class but the problem is how do i draw that ?
Is there any special option called template…
Troller
- 1,108
- 8
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- 47