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std::vec: Remove the function same_length

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The basic construct x.len() == y.len() is just as simple.

This function used to be a precondition (not sure about the
terminology), so it had to be a function. This is not relevant any more.
This commit is contained in:
blake2-ppc 2013-09-10 03:55:34 +02:00
parent 77dff93a4b
commit 5f69a58e0c
2 changed files with 2 additions and 7 deletions
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4
src/librustc/middle/typeck/infer/combine.rs
View file

@ -88,7 +88,7 @@ pub trait Combine {
// future we could allow type parameters to declare a
// variance.
if vec::same_length(as_, bs) {
if as_.len() == bs.len() {
result::fold_(as_.iter().zip(bs.iter())
.map(|(a, b)| eq_tys(self, *a, *b)))
.then(|| Ok(as_.to_owned()))
@ -419,7 +419,7 @@ pub fn super_fn_sigs<C:Combine>(
this: &C, a: &ty::FnSig, b: &ty::FnSig) -> cres<ty::FnSig> {
fn argvecs<C:Combine>(this: &C, a_args: &[ty::t], b_args: &[ty::t]) -> cres<~[ty::t]> {
if vec::same_length(a_args, b_args) {
if a_args.len() == b_args.len() {
result::collect(a_args.iter().zip(b_args.iter())
.map(|(a, b)| this.args(*a, *b)))
} else {

5
src/libstd/vec.rs
View file

@ -123,11 +123,6 @@ use unstable::raw::{Box, Repr, Slice, Vec};
use vec;
use util;
/// Returns true if two vectors have the same length
pub fn same_length<T, U>(xs: &[T], ys: &[U]) -> bool {
xs.len() == ys.len()
}
/**
* Creates and initializes an owned vector.
*