std: Changing the meaning of the count to splitn
This commit is an implementation of [RFC 979][rfc] which changes the meaning of
the count parameter to the `splitn` function on strings and slices. The
parameter now means the number of items that are returned from the iterator, not
the number of splits that are made.
[rfc]: https://github.com/rust-lang/rfcs/pull/979
Closes #23911
[breaking-change]
diff --git a/src/librustc/session/config.rs b/src/librustc/session/config.rs
index c67819a..5a59892 100644
--- a/src/librustc/session/config.rs
+++ b/src/librustc/session/config.rs
@@ -304,7 +304,7 @@
{
let mut op = $defaultfn();
for option in matches.opt_strs($prefix) {
- let mut iter = option.splitn(1, '=');
+ let mut iter = option.splitn(2, '=');
let key = iter.next().unwrap();
let value = iter.next();
let option_to_lookup = key.replace("-", "_");
@@ -958,7 +958,7 @@
}
let libs = matches.opt_strs("l").into_iter().map(|s| {
- let mut parts = s.splitn(1, '=');
+ let mut parts = s.splitn(2, '=');
let kind = parts.next().unwrap();
let (name, kind) = match (parts.next(), kind) {
(None, name) |
@@ -1010,7 +1010,7 @@
let mut externs = HashMap::new();
for arg in &matches.opt_strs("extern") {
- let mut parts = arg.splitn(1, '=');
+ let mut parts = arg.splitn(2, '=');
let name = match parts.next() {
Some(s) => s,
None => early_error("--extern value must not be empty"),
