CODEWITHSUNDEEP
c++templatescompiler-errorsstdmap
Dude
Dude

Reputation: 59

C++ templated property in class header using std::map - Compiler error C1001

I'm fairly new to C++, so I'm not sure what I'm doing wrong.

This is my construct:

Struct

template<size_t N> struct Offsets 
{ 
    static const int length = N;
    DWORD offsets[N]; 
};

And the property:

template <size_t N>
std::map<std::string, std::map<DWORD, Offsets<N>>> pointers;

This results in a

Compiler Error C1001.

Whats wrong with that?

Upvotes: 1

Views: 126

Answers (2)

DaBrain
DaBrain

Reputation: 3185

You can't use a template on a variable. If you want to keep pointers flexible encapsule it in a template class or struct.

template< size_t N >
class PointerOffsetMap
{
...
public:
    std::map<std::string, std::map<DWORD, Offsets<N>>> pointers;
}

just a very simple example, you should probably make pointers private and add some access functions to get a nice interface.

Upvotes: 1

Some programmer dude
Some programmer dude

Reputation: 409176

Variables can't be templated, they have to fully specified. So to declare your pointers variable you must specify the N.

Upvotes: 3

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