@node putc @section @code{putc} @findex putc POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/putc.html} Gnulib module: stdio, sigpipe Portability problems fixed by Gnulib: @itemize @item When writing to a pipe with no readers, this function fails, instead of obeying the current @code{SIGPIPE} handler, on some platforms: mingw. @end itemize Portability problems not fixed by Gnulib: @itemize @item On Windows platforms (excluding Cygwin), this function does not set @code{errno} upon failure. @end itemize