Example

class ClassA {
public: void methodA () {
string s="XYZ";
int i=0;

while (i < s.size()) {

}
};


Solution
Avoid calling function in the condition part of loop

class ClassA {
public: void methodA () {
string s="XYZ";
int i=0;
int l=s.size();

while (i < l) {

}
};