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Misc C++ Tips PDF
Wednesday, 25 March 2009
This section shows you different C++ programing tips.

Tip1. Properly define your functions (methods) within your classes

If you have the following code:

#include <iostream>

using namespace std;

class address
      void show_address(void) { cout << street << ' ' << number << endl; };
      address() {  number = 0; street = new char [500]; };
      address(char* street, int number)
          address::street = new (nothrow) char [500];
          strcpy(address::street, street);
          address::number = number;
      ~address() { delete street; }

      char* street;
      int number;

int main(void)
    address addrs("Main Street", 10);

And when you try to compile you get the following warning:

test1.cc: In function 'int main()':
test1.cc:25: warning: deprecated conversion from string constant to 'char*'

Then it means the compiler warns you that your function is allowed to modify memory, and it should not.

So instead of       address(char* street, int number)     you should have:       address(const char* street, int number)

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