re PR c++/58072 ([C++11] Error messages involving user-defined literals are poor (refer to tokens))

gcc/c-family:

2013-08-04  Ed Smith-Rowland  <3dw4rd@verizon.net>

	PR c++/58072
	* c-common.c (c_parse_error): Catch user-defined literal tokens and
	provide useful error strings.


gcc/testsuite:

2013-08-04  Ed Smith-Rowland  <3dw4rd@verizon.net>

	PR c++/58072
	* g++.dg/cpp0x/pr58072.C: New.

From-SVN: r201475

gcc/c-family/ChangeLog

+2013-08-04  Ed Smith-Rowland  <3dw4rd@verizon.net>
+
+	PR c++/58072
+	* c-common.c (c_parse_error): Catch user-defined literal tokens and
+	provide useful error strings.
+
 2013-08-03  Gabriel Dos Reis  <gdr@integrable-solutions.net>
 
 	* c-ada-spec.c (pp_ada_tree_identifier): Use specialized pretty

gcc/c-family/c-common.c

@@ -9352,6 +9352,18 @@ c_parse_error (const char *gmsgid, enum cpp_ttype token_type,
       free (message);
       message = NULL;
     }
+  else if (token_type == CPP_CHAR_USERDEF
+	   || token_type == CPP_WCHAR_USERDEF
+	   || token_type == CPP_CHAR16_USERDEF
+	   || token_type == CPP_CHAR32_USERDEF)
+    message = catenate_messages (gmsgid,
+				 " before user-defined character literal");
+  else if (token_type == CPP_STRING_USERDEF
+	   || token_type == CPP_WSTRING_USERDEF
+	   || token_type == CPP_STRING16_USERDEF
+	   || token_type == CPP_STRING32_USERDEF
+	   || token_type == CPP_UTF8STRING_USERDEF)
+    message = catenate_messages (gmsgid, " before user-defined string literal");
   else if (token_type == CPP_STRING
 	   || token_type == CPP_WSTRING
 	   || token_type == CPP_STRING16

gcc/testsuite/ChangeLog

+2013-08-04  Ed Smith-Rowland  <3dw4rd@verizon.net>
+
+	PR c++/58072
+	* g++.dg/cpp0x/pr58072.C: New.
+
 2013-08-03  Bill Schmidt  <wschmidt@vnet.linux.ibm.com>
 
 	* gcc.dg/torture/pr57993-2.cpp: New.

gcc/testsuite/g++.dg/cpp0x/pr58072.C

+// { dg-do compile }
+// { dg-options "-std=c++11" }
+
+// PR c++/58072
+
+extern 'c'void*blah(void*); // { dg-error "expected unqualified-id before user-defined character literal" }
+extern L'c'void*Lblah(void*); // { dg-error "expected unqualified-id before user-defined character literal" }
+extern u'c'void*ublah(void*); // { dg-error "expected unqualified-id before user-defined character literal" }
+extern U'c'void*Ublah(void*); // { dg-error "expected unqualified-id before user-defined character literal" }
+
+extern "c"void*strblah(void*); // { dg-error "expected unqualified-id before user-defined string literal" }
+extern L"c"void*Lstrblah(void*); // { dg-error "expected unqualified-id before user-defined string literal" }
+extern u"c"void*ustrblah(void*); // { dg-error "expected unqualified-id before user-defined string literal" }
+extern U"c"void*Ustrblah(void*); // { dg-error "expected unqualified-id before user-defined string literal" }
+extern u8"c"void*u8strblah(void*); // { dg-error "expected unqualified-id before user-defined string literal" }
+
+extern 123void*ULLblah(void*); // { dg-error "expected unqualified-id before numeric constant" }
+extern 123.456void*Ldblblah(void*); // { dg-error "expected unqualified-id before numeric constant" }