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rustc: Make shape-based compare glue never called for comparison operators.

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Only called for string patterns.
This commit is contained in:
Patrick Walton 2012-09-07 18:53:14 -07:00
parent 9a15c50f6c
commit 22b8757705
22 changed files with 322 additions and 82 deletions
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17
src/libcore/str.rs
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@ -769,28 +769,17 @@ pure fn lt(a: &str, b: &str) -> bool {
/// Bytewise less than or equal
pure fn le(a: &str, b: &str) -> bool {
let (a_len, b_len) = (a.len(), b.len());
let mut end = uint::min(a_len, b_len);
let mut i = 0;
while i < end {
let (c_a, c_b) = (a[i], b[i]);
if c_a < c_b { return true; }
if c_a > c_b { return false; }
i += 1;
}
return a_len <= b_len;
!lt(b, a)
}
/// Bytewise greater than or equal
pure fn ge(a: &str, b: &str) -> bool {
!lt(b, a)
!lt(a, b)
}
/// Bytewise greater than
pure fn gt(a: &str, b: &str) -> bool {
!le(b, a)
!le(a, b)
}
impl &str: Eq {