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authorRich Felker <dalias@aerifal.cx>2018-10-18 13:37:05 -0400
committerRich Felker <dalias@aerifal.cx>2018-10-18 13:41:25 -0400
commitd8870dcf385a75ae8df2f8bb5bd5ee59525ed348 (patch)
treec92f8ccffd491650b6b487156c4ddb5fec2442aa /src/internal/locale_impl.h
parenta21a6092cfc0c7e7cb8c0273e5f94d54c0e0eabd (diff)
downloadmusl-d8870dcf385a75ae8df2f8bb5bd5ee59525ed348.tar.gz
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.
Diffstat (limited to 'src/internal/locale_impl.h')
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