Example

In this example, there are two variable declarations with the same name. This is misleading and can confuse developers.

class ClassA {
public:
int someFunction() {
struct Hat {
int sameName;
};

Hat myHat;
myHat.sameName = 5;

int sameName = 5;

return sameName;
}
};

Solution

Instead, name the variable differently so that it is evident which variable is being manipulated. It is recommended that the variable has a meaningful name.

class ClassA {
public:
int someFunction() {
struct Hat {
int sameName;
};

Hat myHat;
myHat.sameName = 5;

int banana = 5;

return banana;
}
};