[Bug fortran/47583] [4.6 Regression] Inquire affected by previous read

[jpr at csc dot fi]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47583

--- Comment #7 from jpr at csc dot fi 2011-02-02 12:48:37 UTC ---
(In reply to comment #6)
> (In reply to comment #5)
> Thanks a lot, at least for me this patch seems to solve the problem.

Well, that patch did break the direct_io_1.f90 test case however,
as the ext.dt member setting overwrote the ext.iterator member (when
there was implied do loop in the inquire(iolength=) statement). 

This might be better:

Index: io.c
===================================================================
--- io.c        (revision 169506)
+++ io.c        (working copy)
@@ -3091,7 +3091,8 @@
   cp = gfc_get_code ();
   cp->op = EXEC_TRANSFER;
   cp->expr1 = expr;
-  cp->ext.dt = current_dt;
+  if (k != M_INQUIRE)
+    cp->ext.dt = current_dt;

   *cpp = cp;
   return MATCH_YES;