2 @section @code{setvbuf}
5 POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/setvbuf.html}
9 Portability problems fixed by Gnulib:
13 Portability problems not fixed by Gnulib:
16 On Windows platforms (excluding Cygwin), this function does not set @code{errno}
19 On Windows platforms (excluding Cygwin), @code{_IOLBF} (line-buffering)
20 is treated as if it were @code{_IOFBF} (full buffering),
21 possibly with a warning generated.