------- Additional Comments From Thomas dot Koenig at online dot de 2004-12-08 16:24 ------- (In reply to comment #1) > Is this a language extension? Seems likely, as the standard has no concept of > stdin and stdout. Could you point to someplace where this extension is > specified?
It's in the comments to io.h (line 76 ff): Even more complex, during the execution of a program containing a namelist READ statement, you can specify a question mark character(?) or a question mark character preceded by an equal sign(=?) to get the information of the namelist group. By '?', the name of variables in the namelist will be displayed, by '=?', the name and value of Also, check out http://h18009.www1.hp.com/fortran/docs/lrm/lrm0372.htm . It's specified in green, which I suppose means that it is an extension. Googling for "namelist fortran question mark" will lead to other examples. Offhand, I can't find a UNIX compiler that doesn't support it. g77 also tries, but the support there is buggy (see PR 18874). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18879
