mikros/rust
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix mod_floor() for uint primitive types

Browse Source
This commit is contained in:
Kevin Ballard 2013-08-18 23:23:29 -07:00
parent 8fff3f40f2
commit ac3bc9cfcc
1 changed files with 15 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/libstd/num/uint_macros.rs
View File

@ -227,9 +227,9 @@ impl Integer for $T {
/// Unsigned integer modulo operation. Returns the same result as `rem` (`%`).
#[inline]
fn mod_floor(&self, other: &$T) -> $T { *self / *other }
fn mod_floor(&self, other: &$T) -> $T { *self % *other }
/// Calculates `div_floor` and `modulo_floor` simultaneously
/// Calculates `div_floor` and `mod_floor` simultaneously
#[inline]
fn div_mod_floor(&self, other: &$T) -> ($T,$T) {
(*self / *other, *self % *other)
@ -458,6 +458,19 @@ mod tests {
assert_eq!((3 as $T).clamp(&(2 as $T), &(4 as $T)), 3 as $T);
}
#[test]
fn test_div_mod_floor() {
assert_eq!((10 as $T).div_floor(&(3 as $T)), 3 as $T);
assert_eq!((10 as $T).mod_floor(&(3 as $T)), 1 as $T);
assert_eq!((10 as $T).div_mod_floor(&(3 as $T)), (3 as $T, 1 as $T));
assert_eq!((5 as $T).div_floor(&(5 as $T)), 1 as $T);
assert_eq!((5 as $T).mod_floor(&(5 as $T)), 0 as $T);
assert_eq!((5 as $T).div_mod_floor(&(5 as $T)), (1 as $T, 0 as $T));
assert_eq!((3 as $T).div_floor(&(7 as $T)), 0 as $T);
assert_eq!((3 as $T).mod_floor(&(7 as $T)), 3 as $T);
assert_eq!((3 as $T).div_mod_floor(&(7 as $T)), (0 as $T, 3 as $T));
}
#[test]
fn test_gcd() {
assert_eq!((10 as $T).gcd(&2), 2 as $T);