From: Pawel Dziepak <pdziepak@quarnos.org>
To: musl@lists.openwall.com
Cc: Pawel Dziepak <pdziepak@quarnos.org>
Subject: [PATCH] add definition of max_align_t to stddef.h
Date: Wed, 30 Apr 2014 22:23:01 +0200 [thread overview]
Message-ID: <1398889381-22981-1-git-send-email-pdziepak@quarnos.org> (raw)
max_align_t is an object type with the strictest alignment supported by
the implementation in all contexts. An union is used to "choose" the greater
of the two greatest scalar types: long long and long double.
Signed-off-by: Pawel Dziepak <pdziepak@quarnos.org>
---
include/alltypes.h.in | 2 ++
include/stddef.h | 1 +
2 files changed, 3 insertions(+)
diff --git a/include/alltypes.h.in b/include/alltypes.h.in
index c4ca5d5..ec3873f 100644
--- a/include/alltypes.h.in
+++ b/include/alltypes.h.in
@@ -18,6 +18,8 @@ TYPEDEF unsigned _Int64 uint64_t;
TYPEDEF unsigned _Int64 u_int64_t;
TYPEDEF unsigned _Int64 uintmax_t;
+TYPEDEF union { long double ld; long long ll; } max_align_t;
+
TYPEDEF unsigned mode_t;
TYPEDEF unsigned _Reg nlink_t;
TYPEDEF _Int64 off_t;
diff --git a/include/stddef.h b/include/stddef.h
index 0a32919..cab34d9 100644
--- a/include/stddef.h
+++ b/include/stddef.h
@@ -7,6 +7,7 @@
#define NULL ((void*)0)
#endif
+#define __NEED_max_align_t
#define __NEED_ptrdiff_t
#define __NEED_size_t
#define __NEED_wchar_t
--
1.9.0
next reply other threads:[~2014-04-30 20:23 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-30 20:23 Pawel Dziepak [this message]
2014-04-30 21:42 ` Szabolcs Nagy
2014-04-30 22:43 ` Rich Felker
2014-05-04 2:52 ` Paweł Dziepak
2014-05-04 11:42 ` Paweł Dziepak
2014-05-07 5:02 ` Jens Gustedt
2014-05-04 2:36 ` Paweł Dziepak
2014-05-04 5:02 ` Rich Felker
2014-05-06 10:35 Paweł Dziepak
2014-05-07 3:13 ` Rich Felker
2014-05-07 4:14 ` Luca Barbato
2014-05-07 4:29 ` Rich Felker
2014-05-07 5:12 ` Luca Barbato
2014-05-07 22:48 ` Rich Felker
2014-05-08 12:07 ` Luca Barbato
2014-05-08 14:25 ` Rich Felker
2014-05-07 9:28 ` Paweł Dziepak
2014-05-07 23:07 ` Rich Felker
2014-05-08 10:57 ` Szabolcs Nagy
2014-05-08 14:11 ` Rich Felker
2014-05-08 16:41 ` Paweł Dziepak
2014-05-08 17:41 ` Rich Felker
2014-05-08 18:45 ` Jens Gustedt
2014-05-08 19:11 ` Paweł Dziepak
2014-05-08 19:22 ` Jens Gustedt
2014-05-08 19:45 ` Paweł Dziepak
2014-05-08 20:02 ` Rich Felker
2014-05-08 20:45 ` Paweł Dziepak
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