fix line-buffered flush omission for odd usage of putc-family functions
commit416d1c7a711807384cc21a18163475cf757bbcb5
authorRich Felker <dalias@aerifal.cx>
Thu, 11 Feb 2016 00:10:34 +0000 (10 19:10 -0500)
committerRich Felker <dalias@aerifal.cx>
Thu, 11 Feb 2016 00:10:34 +0000 (10 19:10 -0500)
tree8a31270eb7640693929a0d4447e42e34f83cb687
parent5a6e8d098abfef67028e6c3edbac39e0bbaf8bd8
fix line-buffered flush omission for odd usage of putc-family functions

as specified, the int argument providing the character to write is
converted to type unsigned char. for the actual write to buffer,
conversion happened implicitly via the assignment operator; however,
the logic to check whether the argument was a newline used the
original int value. thus usage such as putchar('\n'+0x100) failed to
produce a flush.
src/internal/stdio_impl.h