@c "fn/fappend.texi"
@c extracted from "../../lib/libchpfn/io.cc"
@c by "$(top_srcdir)/scripts/extract_texinfo.awk".

@deffn Function fappend file
Like @command{fopen}, except @var{file} is first opened in append mode, 
to not overwrite existing file.  
Call this before @command{fprint} to append to @var{file}.  
@end deffn

