[patch, fortran] [5/6 Regression] Line continuation followed by comment character in string fails to compile

[Jerry DeLisle]

On 05/16/2015 10:45 AM, Jerry DeLisle wrote:
--- snip ---

> Thanks Steve,
> 
> Committed revision 223248.
> 
> 

I had some time to play with this a little more this afternoon.

I am going to commit the following little patchlet that gives us the nice
warning we should have. (After full regression testing of course)

gfc -Wall continuation_13.f90
continuation_13.f90:22:4: Warning: Missing ‘&’ in continued character constant
at (1) [-Wampersand]
continuation_13.f90:24:4: Warning: Missing ‘&’ in continued character constant
at (1) [-Wampersand]


Index: scanner.c
===================================================================
--- scanner.c	(revision 223250)
+++ scanner.c	(working copy)
@@ -1383,7 +1383,12 @@
 			     "constant at %C");
 	    }
 	  else if (!in_string && (c == '\'' || c == '"'))
+	    {
+	      gfc_warning (OPT_Wampersand,
+			     "Missing %<&%> in continued character "
+			     "constant at %C");
 	      goto done;
+	    }
 	  /* Both !$omp and !$ -fopenmp continuation lines have & on the
 	     continuation line only optionally.  */
 	  else if (openmp_flag || openacc_flag || openmp_cond_flag)