2 @section @code{putchar_unlocked}
3 @findex putchar_unlocked
5 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/putchar_unlocked.html}
9 Portability problems fixed by Gnulib:
13 Portability problems not fixed by Gnulib:
16 This function is missing on some platforms:
19 On some platforms, this function does not set @code{errno} or the
20 stream error indicator on attempts to write to a read-only stream: