Standard C++ Library Class Reference

#include <string>
#include <iostream.h>
// Print out a list of strings
ostream& operator<<(ostream& out, const list<string>& l)
{
copy(l.begin(), l.end(), ostream_iterator<string>(cout," "));
return out;
}
int main(void)
{
// create a list of critters
list<string> critters;
int i;
// insert several critters
critters.insert(critters.begin(),"antelope");
critters.insert(critters.begin(),"bear");
critters.insert(critters.begin(),"cat");
// print out the list
cout << critters << endl;
// Change cat to cougar
*find(critters.begin(),critters.end(),"cat") = "cougar";
cout << critters << endl;
// put a zebra at the beginning
// an ocelot ahead of antelope
// and a rat at the end
critters.push_front("zebra");
critters.insert(find(critters.begin(),critters.end(),
"antelope"),"ocelot");
critters.push_back("rat");
cout << critters << endl;
// sort the list (Use list's sort function since the
// generic algorithm requires a random access iterator
// and list only provides bidirectional)
critters.sort();
cout << critters << endl;
// now let's erase half of the critters
int half = critters.size() >> 1;
for(i = 0; i < half; ++i) {
critters.erase(critters.begin());
}
cout << critters << endl;
return 0;
}
Output :
cat bear antelope
cougar bear antelope
zebra cougar bear ocelot antelope rat
antelope bear cougar ocelot rat zebra
ocelot rat zebra