Hi all. I'm currently learning C++ from a tutorial C to C++. I have a question on references. More precisely, i'm confused why this code gives the following result.
result:
------------------------------------------------------
C:\Documents and Settings\Sebouh >C:\my_cpp_test s\cpp_test\debu g\cpp_test.exe
John, age 56
John, age 56
John, age 4212483 <----------------- WHY??
-----------------------------------------------------
why not Todd?
Thanks
Code:
#include <iostream>
#include <cstring>
using namespace std;
class person
{
public:
char *name;
int age;
person (char *n = "no name", int a = 0)
{
name = new char[100];
strcpy (name, n);
age = a;
}
person (person &s) // The COPY CONSTRUCTOR
{
name = new char[100];
strcpy (name, s.name);
age = s.age;
}
~person ()
{
delete [] name;
}
};
void foo(person p)
{
cout << p.name << ", age " << p.age << endl << endl;
}
person &bar()
{
return person("Todd", 15);
}
int main ()
{
person k ("John", 56);
cout << k.name << ", age " << k.age << endl << endl;
foo(k);
person m(k);
person n = bar();
foo (n);
return 0;
}
------------------------------------------------------
C:\Documents and Settings\Sebouh >C:\my_cpp_test s\cpp_test\debu g\cpp_test.exe
John, age 56
John, age 56
John, age 4212483 <----------------- WHY??
-----------------------------------------------------
why not Todd?
Thanks
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