#include <vector>
#include <string>
#include <iostream>
#include <iomanip>
 
using namespace std;
 
template <class T1>
    class TypeSize
{
public:
    TypeSize(T1 value)
    {
        this->value = value;
    }
    void DataTypeSize()
    {
        cout << "value =  " << sizeof(value) << endl;
    }
protected:
    T1 value;
};
 
template <class T1>
class TypeInfo : public TypeSize <T1>
{
public:
    TypeInfo(T1 value) : TypeSize<T1>(value)
    {
 
    }
    void ShowTypeName()
    {
        cout << "Название типа " << typeid(TypeSize<T1>::value).name() << endl; // ошибка 'value' was not declared in this scope
    }
};
 
int main()
 
{
    //setlocale(LC_ALL, "ru");
 
    double a = 0;
    TypeInfo<double> c(a);
 
    c.DataTypeSize();
    c.ShowTypeName();
 
    return 0;
}
 

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