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| -rw-r--r-- | src/libtime/lib.rs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/libtime/lib.rs b/src/libtime/lib.rs index 34402d01c86..848cd5e17b1 100644 --- a/src/libtime/lib.rs +++ b/src/libtime/lib.rs @@ -103,6 +103,9 @@ impl Add<Duration, Timespec> for Timespec { if nsec >= NSEC_PER_SEC { nsec -= NSEC_PER_SEC; sec += 1; + } else if nsec < 0 { + nsec += NSEC_PER_SEC; + sec -= 1; } Timespec::new(sec, nsec) } @@ -1533,6 +1536,12 @@ mod tests { let w = u + v; assert_eq!(w.sec, 4); assert_eq!(w.nsec, 1); + + let k = Timespec::new(1, 0); + let l = Duration::nanoseconds(-1); + let m = k + l; + assert_eq!(m.sec, 0); + assert_eq!(m.nsec, 999_999_999); } fn test_timespec_sub() { |