From 88eeff6f5a1347dc09de33c26a68648c4dea7f80 Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Fri, 19 Jun 2009 15:25:16 +0000 Subject: c-decl.c (grokdeclarator): If -Wc++-compat, warn about a global variable with an anonymous type. ./: * c-decl.c (grokdeclarator): If -Wc++-compat, warn about a global variable with an anonymous type. fortran/: * cpp.c (struct gfc_cpp_option_data): Give this struct, used for the global variable gfc_cpp_option, a name. testsuite/: * gcc.dg/Wcxx-compat-16.c: New testcase. From-SVN: r148708 --- gcc/c-decl.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'gcc/c-decl.c') diff --git a/gcc/c-decl.c b/gcc/c-decl.c index 4e48bac..57cbd28 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -5875,6 +5875,19 @@ grokdeclarator (const struct c_declarator *declarator, name of a variable. Thus, if it's known before this, die horribly. */ gcc_assert (!DECL_ASSEMBLER_NAME_SET_P (decl)); + if (warn_cxx_compat + && TREE_CODE (decl) == VAR_DECL + && TREE_PUBLIC (decl) + && TREE_STATIC (decl) + && (TREE_CODE (TREE_TYPE (decl)) == RECORD_TYPE + || TREE_CODE (TREE_TYPE (decl)) == UNION_TYPE + || TREE_CODE (TREE_TYPE (decl)) == ENUMERAL_TYPE) + && TYPE_NAME (TREE_TYPE (decl)) == NULL_TREE) + warning_at (DECL_SOURCE_LOCATION (decl), OPT_Wc___compat, + ("non-local variable %qD with anonymous type is " + "questionable in C++"), + decl); + return decl; } } -- cgit v1.1