| commit | d8870dcf385a75ae8df2f8bb5bd5ee59525ed348 | [log] [tgz] |
|---|---|---|
| author | Rich Felker <dalias@aerifal.cx> | Thu Oct 18 13:37:05 2018 -0400 |
| committer | Rich Felker <dalias@aerifal.cx> | Thu Oct 18 13:41:25 2018 -0400 |
| tree | c92f8ccffd491650b6b487156c4ddb5fec2442aa | |
| parent | a21a6092cfc0c7e7cb8c0273e5f94d54c0e0eabd [diff] |
optimize internal putc_unlocked macro used in putc to check whether flush due to line buffering is needed, the int-type character argument must be truncated to unsigned char for comparison. if the original value is subsequently passed to __overflow, it must be preserved, adding to register pressure. since it doesn't matter, truncate all uses so the original value is no longer live.