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Re: gcc/cp/pt.c: use ngettext() when needed


2010/2/18 Jakub Jelinek <jakub@redhat.com>:
> On Thu, Feb 18, 2010 at 03:33:34PM +0100, Marco Poletti wrote:
>> --- gcc/diagnostic.c ?(revisione 156858)
>> +++ gcc/diagnostic.c ?(copia locale)
>> @@ -519,6 +519,23 @@ inform (location_t location, const char
>> ? ?va_end (ap);
>> ?}
>>
>> +/* An informative note at LOCATION. ?Use this for additional details
>> on an error
>
> Too long line.
>
>> + ? message. The message is already translated. ?*/
>
> The message is not translated, inform_n does the translation.
>
>> +/* A hard error: the code is definitely ill-formed, and an object file
>> + ? will not be produced. The message is already translated. ?*/
>
> Likewise.
>
> ? ? ? ?Jakub
>

@Jakub:
Yes, you're right. Thanks for pointing these out.

Updated patch:

Index: gcc/diagnostic.c
===================================================================
--- gcc/diagnostic.c	(revisione 156858)
+++ gcc/diagnostic.c	(copia locale)
@@ -519,6 +519,23 @@ inform (location_t location, const char
   va_end (ap);
 }

+/* An informative note at LOCATION.  Use this for additional details on an
+   error message.  */
+void
+inform_n (location_t location, int n, const char *singular_gmsgid,
+          const char *plural_gmsgid, ...)
+{
+  diagnostic_info diagnostic;
+  va_list ap;
+
+  va_start (ap, plural_gmsgid);
+  diagnostic_set_info_translated (&diagnostic,
+                                  ngettext (singular_gmsgid, plural_gmsgid, n),
+                                  &ap, location, DK_NOTE);
+  report_diagnostic (&diagnostic);
+  va_end (ap);
+}
+
 /* A warning at INPUT_LOCATION.  Use this for code which is correct according
    to the relevant language specification but is likely to be buggy anyway.
    Returns true if the warning was printed, false if it was inhibited.  */
@@ -613,6 +630,23 @@ error (const char *gmsgid, ...)
   report_diagnostic (&diagnostic);
   va_end (ap);
 }
+
+/* A hard error: the code is definitely ill-formed, and an object file
+   will not be produced.  */
+void
+error_n (location_t location, int n, const char *singular_gmsgid,
+         const char *plural_gmsgid, ...)
+{
+  diagnostic_info diagnostic;
+  va_list ap;
+
+  va_start (ap, plural_gmsgid);
+  diagnostic_set_info_translated (&diagnostic,
+                                  ngettext (singular_gmsgid, plural_gmsgid, n),
+                                  &ap, location, DK_ERROR);
+  report_diagnostic (&diagnostic);
+  va_end (ap);
+}

 /* Same as ebove, but use location LOC instead of input_location.  */
 void
Index: gcc/toplev.h
===================================================================
--- gcc/toplev.h	(revisione 156858)
+++ gcc/toplev.h	(copia locale)
@@ -63,6 +63,8 @@ extern bool warning (int, const char *,
 extern bool warning_at (location_t, int, const char *, ...)
     ATTRIBUTE_GCC_DIAG(3,4);
 extern void error (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2);
+extern void error_n (location_t, int, const char *, const char *, ...)
+    ATTRIBUTE_GCC_DIAG(3,5) ATTRIBUTE_GCC_DIAG(4,5);
 extern void error_at (location_t, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
 extern void fatal_error (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2)
      ATTRIBUTE_NORETURN;
@@ -72,6 +74,8 @@ extern bool pedwarn (location_t, int, co
 extern bool permerror (location_t, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
 extern void sorry (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2);
 extern void inform (location_t, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
+extern void inform_n (location_t, int, const char *, const char *, ...)
+    ATTRIBUTE_GCC_DIAG(3,5) ATTRIBUTE_GCC_DIAG(4,5);
 extern void verbatim (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2);

 extern void rest_of_decl_compilation (tree, int, int);
Index: gcc/cp/pt.c
===================================================================
--- gcc/cp/pt.c	(revisione 156858)
+++ gcc/cp/pt.c	(copia locale)
@@ -4614,10 +4614,14 @@ redeclare_class_template (tree type, tre

   if (TREE_VEC_LENGTH (parms) != TREE_VEC_LENGTH (tmpl_parms))
     {
-      error ("redeclared with %d template parameter(s)",
-             TREE_VEC_LENGTH (parms));
-      inform (input_location, "previous declaration %q+D used %d
template parameter(s)",
-             tmpl, TREE_VEC_LENGTH (tmpl_parms));
+      error_n (input_location, TREE_VEC_LENGTH (parms),
+               "redeclared with %d template parameter",
+               "redeclared with %d template parameters",
+               TREE_VEC_LENGTH (parms));
+      inform_n (input_location, TREE_VEC_LENGTH (tmpl_parms),
+                "previous declaration %q+D used %d template parameter",
+                "previous declaration %q+D used %d template parameters",
+                tmpl, TREE_VEC_LENGTH (tmpl_parms));
       return false;
     }

Index: gcc/po/exgettext
===================================================================
--- gcc/po/exgettext	(revisione 156858)
+++ gcc/po/exgettext	(copia locale)
@@ -112,6 +112,8 @@ function keyword_option(line) {
     else if (args ~ /c$/)
     	format="c-format"

+    if (name ~ /_n$/) n = n "," (n + 1)
+
     if (n == 1) { keyword = "--keyword=" name }
     else { keyword = "--keyword=" name ":" n }
     if (format) {


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