diff options
Diffstat (limited to 'libc/stdio/_stdio.c')
| -rw-r--r-- | libc/stdio/_stdio.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libc/stdio/_stdio.c b/libc/stdio/_stdio.c index 52e7295cf..3c3ce59c7 100644 --- a/libc/stdio/_stdio.c +++ b/libc/stdio/_stdio.c @@ -253,8 +253,10 @@ void attribute_hidden _stdio_init(void) #ifdef __STDIO_BUFFERS int old_errno = errno; /* stdin and stdout uses line buffering when connected to a tty. */ - _stdio_streams[0].__modeflags ^= (1-isatty(0)) * __FLAG_LBF; - _stdio_streams[1].__modeflags ^= (1-isatty(1)) * __FLAG_LBF; + if (!isatty(0)) + _stdio_streams[0].__modeflags ^= __FLAG_LBF; + if (!isatty(1)) + _stdio_streams[1].__modeflags ^= __FLAG_LBF; __set_errno(old_errno); #endif #ifndef __UCLIBC__ |