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Merge pull request #1589 (from nbraud:factor/gcd/test_divisor)

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Roy Ivy III 2020-09-03 15:23:14 -05:00
commit 4b76849de7
1 changed files with 5 additions and 2 deletions
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7
src/uu/factor/src/numeric/gcd.rs
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@ -72,11 +72,14 @@ mod tests {
gcd(1, a) == 1 gcd(1, a) == 1
} }
fn zero(a: u64) -> bool {
gcd(0, a) == a
}
fn divisor(a: u64, b: u64) -> bool { fn divisor(a: u64, b: u64) -> bool {
// Test that gcd(a, b) divides a and b // Test that gcd(a, b) divides a and b
let g = gcd(a, b); let g = gcd(a, b);
if g == 0 { return a == 0 && b == 0; } (g != 0 && a % g == 0 && b % g == 0) || (g == 0 && a == 0 && b == 0)
a % g == 0 && b % g == 0
} }
fn commutative(a: u64, b: u64) -> bool { fn commutative(a: u64, b: u64) -> bool {