To check the type of a variable in C++, you can use typeid(variable).name(), for example

 #include <typeinfo>
...
...

   int b=9;
    char c='a';
    char * p=&c;
    int *d;
    printf("%s\n",typeid(b).name());
    printf("%s\n",typeid(c).name());
    printf("%s\n",typeid(p).name());
    printf("%s\n",typeid(d).name());

• the typeid of variables of int type is i
• the typeid of variables of char type is c
• the typeid of pointers of type char * is Pc
• the typeid of pinters of type int * is Pi

reference: https://stackoverflow.com/questions/11310898/how-do-i-get-the-type-of-a-variable

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