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[src/trunk]: src/sys/sys There are some places where C99 allows a restrict mo...
details: https://anonhg.NetBSD.org/src/rev/5df5934a5c0f
branches: trunk
changeset: 777508:5df5934a5c0f
user: martin <martin%NetBSD.org@localhost>
date: Tue Feb 21 10:53:08 2012 +0000
description:
There are some places where C99 allows a restrict modifier (and posix
demands it), but C++ does not allow it. So add a C only version of
__restrict, which expands to nothing if compiling C++.
See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49347 for a discussion.
diffstat:
sys/sys/cdefs.h | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diffs (23 lines):
diff -r 16c8f61a26f0 -r 5df5934a5c0f sys/sys/cdefs.h
--- a/sys/sys/cdefs.h Tue Feb 21 10:43:46 2012 +0000
+++ b/sys/sys/cdefs.h Tue Feb 21 10:53:08 2012 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: cdefs.h,v 1.90 2012/02/17 18:58:51 joerg Exp $ */
+/* $NetBSD: cdefs.h,v 1.91 2012/02/21 10:53:08 martin Exp $ */
/*
* Copyright (c) 1991, 1993
@@ -266,10 +266,13 @@
#define __BEGIN_EXTERN_C extern "C" {
#define __END_EXTERN_C }
#define __static_cast(x,y) static_cast<x>(y)
+/* C++ does not allow a __restrict modifier everywhere C99 does */
+#define __conly_restrict
#else
#define __BEGIN_EXTERN_C
#define __END_EXTERN_C
#define __static_cast(x,y) (x)y
+#define __conly_restrict __restrict
#endif
#if __GNUC_PREREQ__(4, 0)
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