[src/trunk]: src/sys/sys Provide __CONCATn macros that take from 3 to 8 argum...

[skrll <skrll%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/043e46c6f77b
branches:  trunk
changeset: 1020718:043e46c6f77b
user:      skrll <skrll%NetBSD.org@localhost>
date:      Fri Apr 23 05:56:43 2021 +0000

description:
Provide __CONCATn macros that take from 3 to 8 arguments and concatenate
them.

I didn't provide the non-STDC versions

diffstat:

 sys/sys/cdefs.h |  10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diffs (24 lines):

diff -r c3e1572e1994 -r 043e46c6f77b sys/sys/cdefs.h
--- a/sys/sys/cdefs.h   Fri Apr 23 03:44:05 2021 +0000
+++ b/sys/sys/cdefs.h   Fri Apr 23 05:56:43 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: cdefs.h,v 1.156 2021/01/16 23:51:51 chs Exp $  */
+/*     $NetBSD: cdefs.h,v 1.157 2021/04/23 05:56:43 skrll Exp $        */
 
 /* * Copyright (c) 1991, 1993
  *     The Regents of the University of California.  All rights reserved.
@@ -114,6 +114,14 @@
 #define        __const         const           /* define reserved names to standard */
 #define        __signed        signed
 #define        __volatile      volatile
+
+#define        __CONCAT3(a,b,c)                a ## b ## c
+#define        __CONCAT4(a,b,c,d)              a ## b ## c ## d
+#define        __CONCAT5(a,b,c,d,e)            a ## b ## c ## d ## e
+#define        __CONCAT6(a,b,c,d,e,f)          a ## b ## c ## d ## e ## f
+#define        __CONCAT7(a,b,c,d,e,f,g)        a ## b ## c ## d ## e ## f ## g
+#define        __CONCAT8(a,b,c,d,e,f,g,h)      a ## b ## c ## d ## e ## f ## g ## h
+
 #if defined(__cplusplus) || defined(__PCC__)
 #define        __inline        inline          /* convert to C++/C99 keyword */
 #else