diagnostic.c (diagnostic_build_prefix): Always print columns.

gcc/
	* diagnostic.c (diagnostic_build_prefix): Always print columns.
	(diagnostic_report_current_module): Print columns.
	* common.opt (flag_show_column): Enable by default.
gcc/testsuite/
	* lib/gcc-dg.exp (dg-bogus): Override dg-bogus.
	(process-message): Expect column numbers.
	* gcc.dg/va-arg-2.c: Use line 0 to indicate no column.
	* gcc.dg/pch/counter-2.c: Same.
	* gcc.dg/pch/valid-2.c: Same.
	* gcc.dg/pch/warn-1.c: Same.
	* gcc.dg/pch/valid-1.c: Same.
	* gcc.dg/cpp/include2a.c: Handle lack of columns.
	* gcc.dg/cpp/syshdr.c: Same.
	* gcc.dg/cpp/19940712-1.c: Same.
	* gcc.dg/cpp/missing-header-1.c: Same.
	* gcc.dg/cpp/unc4.c: Remove -fno-show-column.
	* gcc.dg/cpp/tr-warn3.c: Same.
	* gcc.dg/cpp/pr29612-2.c: Same.
	* gcc.dg/cpp/tr-warn4.c: Same.
	* gcc.dg/cpp/Wtrigraphs.c: Same.
	* gcc.dg/cpp/poison.c: Same.
	* gcc.dg/cpp/arith-3.c: Same.
	* gcc.dg/cpp/sysmac2.c: Same.
	* gcc.dg/cpp/cpp.exp: Same.
	* gcc.dg/cpp/tr-warn5.c: Same.
	* gcc.dg/cpp/include2.c: Same.
	* gcc.dg/cpp/Wmissingdirs.c: Same.
	* gcc.dg/cpp/Wmissingdirs.c: Same.
	* gcc.dg/cpp/tr-warn6.c: Same.
	* gcc.dg/cpp/Wtrigraphs-2.c: Same.
	* gcc.dg/cpp/macspace1.c: Same.
	* gcc.dg/cpp/escape-2.c: Same.
	* gcc.dg/cpp/assert2.c: Same.
	* gcc.dg/cpp/undef2.c: Same.
	* gcc.dg/cpp/macspace2.c: Same.
	* gcc.dg/cpp/tr-warn1.c: Same.
	* gcc.dg/cpp/extratokens2.c: Same.
	* gcc.dg/cpp/strify2.c: Same.
	* gcc.dg/cpp/Wsignprom.c: Same.
	* gcc.dg/cpp/redef2.c: Same.
	* gcc.dg/cpp/trad/trad.exp: Same.
	* gcc.dg/cpp/arith-1.c: Same.
	* gcc.dg/cpp/extratokens.c: Same.
	* gcc.dg/cpp/if-mpar.c: Same.
gcc/cp/
	* error.c (print_instantiation_partial_context): Print column
	numbers.
libcpp/
	* include/line-map.h (LAST_SOURCE_COLUMN): New.

From-SVN: r148052

1 files changed, 17 insertions, 6 deletions

diff --git a/gcc/cp/error.c b/gcc/cp/error.c
index 004543d..7be241d 100644
--- a/gcc/cp/error.c
+++ b/gcc/cp/error.c
@@ -2705,19 +2705,30 @@ print_instantiation_partial_context (diagnostic_context *context,
 				     struct tinst_level *t, location_t loc)
 {
   expanded_location xloc;
+  const char *str;
   for (; ; t = t->next)
     {
       xloc = expand_location (loc);
       if (t == NULL)
 	break;
-      pp_verbatim (context->printer, _("%s:%d:   instantiated from %qs\n"),
-		   xloc.file, xloc.line,
-		   decl_as_string_translate (t->decl,
-					     TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE));
+      str = decl_as_string_translate (t->decl,
+	  			      TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE);
+      if (flag_show_column)
+	pp_verbatim (context->printer,
+		     _("%s:%d:%d:   instantiated from %qs\n"),
+		     xloc.file, xloc.line, xloc.column, str);
+      else
+	pp_verbatim (context->printer,
+		     _("%s:%d:   instantiated from %qs\n"),
+		     xloc.file, xloc.line, str);
       loc = t->locus;
     }
-  pp_verbatim (context->printer, _("%s:%d:   instantiated from here"),
-	       xloc.file, xloc.line);
+  if (flag_show_column)
+    pp_verbatim (context->printer, _("%s:%d:%d:   instantiated from here"),
+		 xloc.file, xloc.line, xloc.column);
+  else
+    pp_verbatim (context->printer, _("%s:%d:   instantiated from here"),
+		 xloc.file, xloc.line);
   pp_base_newline (context->printer);
 }