Commit Message
Joseph Myers wrote:
> I think extern "C" belongs around specific declarations in headers, not
> around whole source files. I'd suggest disabling the internal
> declarations if __cplusplus instead (just as they are disabled for
> _ISOMAC).
Yes that's a good idea. I've updated the patch to change the header instead:
The internal header include/string.h does not work in C++: it causes link errors
in several C++ debug tests when any of the functions it declares are called.
The best option would be to not use internal headers for tests (unless explicitly
needed). Add guards so that it is safe to use include/string.h from C++.
ChangeLog:
2017-02-14 Wilco Dijkstra <wdijkstr@arm.com>
* include/string.h: Add __cplusplus check.
--
Comments
On Tue, 14 Feb 2017, Wilco Dijkstra wrote:
> Joseph Myers wrote:
> > I think extern "C" belongs around specific declarations in headers, not
> > around whole source files. I'd suggest disabling the internal
> > declarations if __cplusplus instead (just as they are disabled for
> > _ISOMAC).
>
> Yes that's a good idea. I've updated the patch to change the header instead:
>
> The internal header include/string.h does not work in C++: it causes link errors
> in several C++ debug tests when any of the functions it declares are called.
> The best option would be to not use internal headers for tests (unless explicitly
> needed). Add guards so that it is safe to use include/string.h from C++.
>
> ChangeLog:
> 2017-02-14 Wilco Dijkstra <wdijkstr@arm.com>
>
> * include/string.h: Add __cplusplus check.
OK.
@@ -1,6 +1,6 @@
#ifndef _STRING_H
-#ifndef _ISOMAC
+#if !defined _ISOMAC && !defined __cplusplus
#include <sys/types.h>
extern void *__memccpy (void *__dest, const void *__src,
@@ -53,7 +53,7 @@ extern char *__strerror_r (int __errnum, char *__buf, size_t __buflen);
above are defined as macros in the headers. */
#include <string/string.h>
-#ifndef _ISOMAC
+#if !defined _ISOMAC && !defined __cplusplus
extern __typeof (strcoll_l) __strcoll_l;
extern __typeof (strxfrm_l) __strxfrm_l;
extern __typeof (strcasecmp_l) __strcasecmp_l;