Question

For example we have two strings:

string s = "cat";
string s1 = "dog";

Is it correct to write the following method?

int a = strcmp(s, s1);

Or what will be correct form?

Answer 1

C++’s std::string can be compared directly, so you could just write e.g.

if (s == s1)
  cout << "the strings are equal" << endl;
else if (s < s1)
  cout << "the first string is smaller" << endl;
else
  ...

But if you really need the integer value, you could use the .compare method.

int a = s.compare(s1);