http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48615
--- Comment #12 from Thomas Henlich <thenlich at users dot sourceforge.net> 2011-04-25 08:43:32 UTC --- The patch submitted to the list is different to the one I based my comments on. My mistake. Good work. With the current method of letting printf do the conversion, there seems to be no better way than always converting the full 40 digits, and then throwing away most of them. In Bug 48511 David Gay's dtoa implementation was mentioned. I looked into that and I think it can be modified to be fully Fortran standard compliant. It combines digit generation and rounding in one step and is probably significantly more efficient than our current solution. Will investigate further.
