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wc: comments

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zhitkoff 2023-12-02 16:52:04 -05:00 committed by Yury Zhytkou
parent b7f708b233
commit a97b574fec
1 changed files with 2 additions and 2 deletions
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4
src/uu/wc/src/count_fast.rs
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@ -128,8 +128,8 @@ pub(crate) fn count_bytes_fast<T: WordCountable>(handle: &mut T) -> (usize, Opti
// Since the input stream from file is treated as continuous across both commands inside ().
// In cases like this, due to `<` redirect, the `stat.st_mode` would report input as a regular file
// and `stat.st_size` would report the size of file on disk
// and NOT the remaining number of bytes in the input stream.
// However, the raw file descriptor in this situation would be equal to `0`
// and NOT the remaining number of bytes in the input stream.
// However, the raw file descriptor in this situation would be equal to `0`
// for STDIN in both invocations.
// Therefore we cannot rely of `st_size` here and should fall back on full read.
if fd > 0 && (stat.st_mode as libc::mode_t & S_IFREG) != 0 && stat.st_size > 0 {