Mega Code Archive
Store objects in a map
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#include <iostream>
#include <map>
#include <cstring>
using namespace std;
class Name {
char str[40];
public:
Name() {
strcpy(str, "");
}
Name(char *s) {
strcpy(str, s);
}
char *get() {
return str;
}
};
// Must define less than relative to Name objects.
bool operator<(Name a, Name b)
{
return strcmp(a.get(), b.get()) < 0;
}
class Number {
char str[80];
public:
Number() {
strcmp(str, "");
}
Number(char *s) {
strcpy(str, s);
}
char *get() {
return str;
}
};
int main()
{
map<Name, Number> directory;
directory.insert(pair<Name, Number>(Name("T"),Number("555-4444")));
directory.insert(pair<Name, Number>(Name("C"),Number("555-3333")));
directory.insert(pair<Name, Number>(Name("J"),Number("555-2222")));
directory.insert(pair<Name, Number>(Name("R"),Number("555-1111")));
char str[80] = "T";
map<Name, Number>::iterator p;
p = directory.find(Name(str));
if(p != directory.end())
cout << "Phone number: " << p->second.get();
else
cout << "Name not in directory.\n";
return 0;
}
Phone number: 555-4444
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