Foreach
- Use
foreach to iterate over any collection (array, subarray, vector or any customized type implementing the indexing operators)
foreach_r conversely allows iteration from back and forward.- Either iterate over the value:
foreach (v : values) or over index + value: foreach (index, v : values)
- Values can also be retrieved by reference by using
& in front of the variable name: foreach (&v : values), this allows mutation of the element directly.
import std::io;
fn void test(float[] values)
{
io::printn("Forward");
foreach (index, value : values)
{
io::printfn("%d: %f", index, value);
}
io::printn("Back");
foreach_r (index, value : values)
{
io::printfn("%d: %f", index, value);
}
}
fn void main()
{
test({ 3.2, 5.0, 1.5, 7.135});
}
