Mega Code Archive
A copy constructor to allow StringClass objects to be passed to functions
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#include <iostream>
#include <cstring>
#include <cstdlib>
using namespace std;
class StringClass {
char *p;
public:
StringClass(char *s); // constructor
StringClass(const StringClass &o); // copy constructor
~StringClass() { // destructor
delete [] p;
}
char *get() {
return p;
}
};
StringClass::StringClass(char *s) // "Normal" constructor
{
int l;
l = strlen(s)+1;
p = new char [l];
if(!p) {
cout << "Allocation error\n";
exit(1);
}
strcpy(p, s);
}
StringClass::StringClass(const StringClass &o) // Copy constructor
{
int l;
l = strlen(o.p)+1;
p = new char [l]; // allocate memory for new copy
if(!p) {
cout << "Allocation error\n";
exit(1);
}
strcpy(p, o.p); // copy string into copy
}
void show(StringClass x)
{
char *s;
s = x.get();
cout << s << endl;
}
int main()
{
StringClass a("www.rntsoft.com"), b("www.rntsoft.com");
show(a);
show(b);
return 0;
}
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