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#include <iostream>
#include <array>
#include <vector>
 
using namespace std;
 
template<typename TContainer>
class GYoba final {
public:
	GYoba();
 
	int rows() const { return mRows; }
	int cols() const { return mCols; }
 
private:
	int mRows;
	int mCols;
	TContainer mData;
};
 
template<typename TValue, int rows, int cols>
using StaticYoba = GYoba<std::array<TValue, rows * cols>>;
 
template<typename TValue>
using DynamicYoba = GYoba<std::vector<TValue>>;
 
template<typename TContainer>
GYoba<TContainer>::GYoba() : mRows(0), mCols(0)
{
}
 
template<typename TValue, int rows, int cols>
template<> StaticYoba<TValue, rows, cols>::GYoba() : mRows(rows), mCols(cols)
{
}
 
int main() {
	StaticYoba<double, 3, 3> sYoba;
	std::cout << sYoba.rows() << " " << sYoba.cols() << std::endl;
	return 0;
}

prog.cpp:33:10: error: invalid explicit specialization before '>' token
 template<> StaticYoba<TValue, rows, cols>::GYoba() : mRows(rows), mCols(cols)
          ^
prog.cpp:33:10: error: enclosing class templates are not explicitly specialized
prog.cpp:33:50: error: invalid use of incomplete type 'class GYoba<std::array<TValue, (rows * cols)> >'
 template<> StaticYoba<TValue, rows, cols>::GYoba() : mRows(rows), mCols(cols)
                                                  ^
prog.cpp:8:7: note: declaration of 'class GYoba<std::array<TValue, (rows * cols)> >'
 class GYoba final {
       ^

Standard output is empty