Changeset 97965 in vbox for trunk/include/iprt

Timestamp:

Jan 3, 2023 9:57:14 PM (2 years ago)

Author:

vboxsync

Message:

iprt/assertcompile.h: 2nd attempt at fixing the problem that some gcc & clang versions annoyance at RTASSERTVAR being declared both within and outside RT_C_DECLS_BEGIN/END.

File:

• trunk/include/iprt/assertcompile.h (modified) (1 diff)

trunk/include/iprt/assertcompile.h

@@ -103 +103 @@
  */
 #ifdef __GNUC__
-# ifdef __cplusplus
-#  define AssertCompileNS(expr)  extern "C" int RTASSERTVAR[1] __attribute__((__unused__)), RTASSERTVAR[(expr) ? 1 : 0] __attribute__((__unused__))
+# ifdef __cplusplus /* Hack alert! Some GCC versions and clang gets upset when the macro is used both inside and outside
+                                   extern "C". So, making the variable a bit more unique by appending the line number. */
+#  define AssertCompileNS(expr)  extern int RT_CONCAT(RTASSERTVAR,__LINE__)[1] __attribute__((__unused__)), \
+                                            RT_CONCAT(RTASSERTVAR,__LINE__)[(expr) ? 1 : 0] __attribute__((__unused__))
 # else
 #  define AssertCompileNS(expr)  extern int RTASSERTVAR[1] __attribute__((__unused__)), RTASSERTVAR[(expr) ? 1 : 0] __attribute__((__unused__))