* c-decl.c (grokdeclarator): Don't warn for 'extern const' when
compiling at the intersection of C and C++.
testsuite/
PR c/21668
* gcc.dg/Wc++-compat.c: New.
* gcc.dg/Wno-c++-compat.c: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@107401
138bc75d-0d04-0410-961f-
82ee72b054a4
&& !funcdef_flag)
{
/* 'extern' with initialization is invalid if not at file scope. */
- if (current_scope == file_scope)
- warning (0, "%qs initialized and declared %<extern%>", name);
+ if (current_scope == file_scope)
+ {
+ /* It is fine to have 'extern const' when compiling at C
+ and C++ intersection. */
+ if (!(warn_cxx_compat && constp))
+ warning (0, "%qs initialized and declared %<extern%>", name);
+ }
else
error ("%qs has both %<extern%> and initializer", name);
}
+2005-11-23 Gabriel Dos Reis <gdr@integrable-solutions.net>
+
+ PR c/21668
+ * gcc.dg/Wc++-compat.c: New.
+ * gcc.dg/Wno-c++-compat.c: New.
+
2005-11-23 Alan Modra <amodra@bigpond.net.au>
* gcc.target/powerpc/altivec-consts.c (vspltisb): Use int val.
--- /dev/null
+/* Copyright (C) 2005 Free Software Foundation.
+
+ by Gabriel Dos Reis <gdr@integrable-solutions.net> */
+
+/* { dg-do compile } */
+/* { dg-options "-Wc++-compat" } */
+
+extern const int foo = 42;
+
--- /dev/null
+/* Copyright (C) 2005 Free Software Foundation.
+
+ by Gabriel Dos Reis <gdr@integrable-solutions.net> */
+
+/* { dg-do compile } */
+/* { dg-options "-Wno-c++-compat" } */
+
+extern const int foo = 42; /* { dg-error "initialized and declared" } */
+