How to check whether a given number is integer or float type in C++?

Answer 1

Include typeinfo library and use typeid().name()

#include <typeinfo>

...

cout << typeid([variable]).name() << endl;

Answer 2

#include <typeinfo>
...
cout << typeid(variable).name() << endl;

Answer 3

You could use modf from math library to extract decimal part and check if it is zero. Example:

https://code.sololearn.com/c29OHjXbSokC/?ref=app