diff options
Diffstat (limited to 'src/libstd/sys/windows')
| -rw-r--r-- | src/libstd/sys/windows/fs.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/libstd/sys/windows/fs.rs b/src/libstd/sys/windows/fs.rs index 2683e57256d..4e6cef9a28d 100644 --- a/src/libstd/sys/windows/fs.rs +++ b/src/libstd/sys/windows/fs.rs @@ -324,6 +324,8 @@ impl File { pub fn seek(&self, pos: SeekFrom) -> io::Result<u64> { let (whence, pos) = match pos { + // Casting to `i64` is fine, `SetFilePointerEx` reinterprets this + // integer as `u64`. SeekFrom::Start(n) => (c::FILE_BEGIN, n as i64), SeekFrom::End(n) => (c::FILE_END, n), SeekFrom::Current(n) => (c::FILE_CURRENT, n), |