In some code I was working on, I have a for loop that iterates through a map:
for (auto it = map.begin(); it != map.end(); ++it) {
//do stuff here
}
And I wondered if there was some way to concisely write something to the effect of:
for (auto it = map.begin(); it != map.end(); ++it) {
//do stuff here
} else {
//Do something here since it was already equal to map.end()
}
I know I could rewrite as:
auto it = map.begin();
if (it != map.end(){
while ( it != map.end() ){
//do stuff here
++it;
}
} else {
//stuff
}
But is there a better way that doesn't involve wrapping in an if statement?
Obviously...
By the way, since we are talking C++11 here, you can use this syntax: