Just thought I'd give the mailing list a heads up that ~"string",
besides being ugly, is generally inefficient: it allocates a string on
the heap and frees it when it goes out of scope. There are no
optimizations that eliminate the allocation.
If you need to compare a `~str` against a constant string, use .equiv():
use core::cmp::Equiv;
fn main() {
let x = ~"foo";
if "foo".equiv(&x) {
println("yep");
}
}
This should admittedly be imported by default.
Patrick
_______________________________________________
Rust-dev mailing list
[email protected]
https://mail.mozilla.org/listinfo/rust-dev
