yggdrasil/libm
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

rustfmt'ed

Browse Source
This commit is contained in:
Rahul Butani
2018-07-23 09:48:47 -05:00
committed by Alex Crichton
parent 2f163d57a9
commit 1372b522e1
1 changed files with 14 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/math/pow.rs
+14 -11
View File
@@ -595,30 +595,33 @@ mod tests {
#[test]
fn special_cases() {
// / 20. (anything) ** 1 is (anything)
// One as the exponent:
// (anything ^ 1 should be anything - i.e. the base)
test_sets(ALL, &|v: f64| pow(v, 1.0), &|v: f64| v);
// / 21. (anything) ** -1 is 1/(anything)
// Negative One as the exponent:
// (anything ^ -1 should be 1/anything)
test_sets(ALL, &|v: f64| pow(v, -1.0), &|v: f64| 1.0 / v);
// / 22. (-anything) ** (integer) is (-1)**(integer)*(+anything**integer)
// Factoring -1 out:
// (negative anything ^ integer should be (-1 ^ integer) * (positive anything ^ integer))
&[POS_ZERO, NEG_ZERO, POS_ONE, NEG_ONE, POS_EVENS, NEG_EVENS].iter().for_each(|int_set| int_set.iter().for_each(|int| {
test_sets(ALL, &|v: f64| pow(-v, *int), &|v: f64| pow(-1.0, *int) * pow(v, *int));
}));
&[POS_ZERO, NEG_ZERO, POS_ONE, NEG_ONE, POS_EVENS, NEG_EVENS]
.iter()
.for_each(|int_set| {
int_set.iter().for_each(|int| {
test_sets(ALL, &|v: f64| pow(-v, *int), &|v: f64| {
pow(-1.0, *int) * pow(v, *int)
});
})
});
// / 23. (-anything except 0 and inf) ** (non-integer) is NAN
// Negative base (imaginary results):
// (-anything except 0 and Infinity ^ non-integer should be NAN)
&NEG[1..(NEG.len()-1)].iter().for_each(|set| set.iter().for_each(|val| {
test_sets(&ALL[3..7], &|v: f64| pow(*val, v), &|_| NAN);
}));
&NEG[1..(NEG.len() - 1)].iter().for_each(|set| {
set.iter().for_each(|val| {
test_sets(&ALL[3..7], &|v: f64| pow(*val, v), &|_| NAN);
})
});
}
#[test]