Question

7. Referring to the same String class as question 5, provide a member function that will remove any character that is supplied to the function as a parameter.

Answer 1

Assuming we can these fields in String class

class String {
private:
    char *data;
    int size;
};

7)
void String::remove(char ch) {
    int count = 0;
    for(int i = 0; i < size; ++i) {
        if(data[i] == ch) {
            ++count;
        }
    }
    char *newData = new char[size-count];
    int index = 0;
    for(int i = 0; i < size; ++i) {
        if(data[i] != ch) {
            newData[index++] = data[i];
        }
    }
    delete[] data;
    data = newData;
    size -= count;
}