My proposal is for a slight addition to for and foreach
statements by allowing different blocks of code to be executed
whether the loop is exited from the condition failing or a break
statement. These would of course be independently optional.
For example:
for(int num = 0; num < 10; num++)
{
if(<condition>)
break;
}
then
{
//num successfully counted up to 10
//do stuff...
}
else
{
//loop was broken prematurely
//do other stuff...
}
One instance where this would be useful is in situations when
code should be executed if an item is not found while searching.
For example:
Current solution:
int[] nums = [1, 2, 3, 4, 5];
int i = 6;
bool intFound = false;
foreach(n; nums)
{
if(n == i)
{
intFound = true;
break;
}
}
if(!intFound)
{
//i was not found, do stuff
}
Using for/then/else:
int[] nums = [1, 2, 3, 4, 5];
int i = 6;
foreach(n; nums)
{
if(n == i)
break;
}
then
{
//i was not found, do stuff
}
Not only would this be more compact and easier to read, but it
should also be more efficient (less checking and less memory
usage).
