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Define libc_max_align_t for internal use

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Florian Weimer 2015-04-02 10:07:04 +02:00
parent b763f6ae85
commit 37d60d970c
2 changed files with 13 additions and 0 deletions
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ChangeLog
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@ -1,3 +1,7 @@
2015-04-02 Florian Weimer <fweimer@redhat.com>
* include/libc-internal.h (libc_max_align_t): Define.
2015-04-02 Andreas Schwab <schwab@suse.de>
[BZ #16850]

9
include/libc-internal.h
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@ -107,4 +107,13 @@ extern void __init_misc (int, char **, char **);
#define DIAG_IGNORE_NEEDS_COMMENT(version, option) \
_Pragma (_DIAG_STR (GCC diagnostic ignored option))
/* This mirrors the C11 max_align_t type provided by GCC, but it is
also available in C99 mode. The aligned attributes are required
because some ABIs have reduced alignment requirements for struct
and union members. */
typedef struct {
long long ll __attribute__ ((__aligned__ (__alignof__ (long long))));
long double ld __attribute__ ((__aligned__ (__alignof__ (long double))));
} libc_max_align_t;
#endif /* _LIBC_INTERNAL */