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Update from Gnulib by running admin/merge-gnulib

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This commit is contained in:
Paul Eggert 2023-06-07 12:00:15 -07:00
parent f68d962ede
commit a902156068
14 changed files with 221 additions and 113 deletions
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13
lib/flexmember.h
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@ -43,7 +43,7 @@
followed by N bytes of other data. The result is suitable as an
argument to malloc. For example:
struct s { int n; char d[FLEXIBLE_ARRAY_MEMBER]; };
struct s { int a; char d[FLEXIBLE_ARRAY_MEMBER]; };
struct s *p = malloc (FLEXSIZEOF (struct s, d, n * sizeof (char)));
FLEXSIZEOF (TYPE, MEMBER, N) is not simply (sizeof (TYPE) + N),
@ -63,3 +63,14 @@
#define FLEXSIZEOF(type, member, n) \
((offsetof (type, member) + FLEXALIGNOF (type) - 1 + (n)) \
& ~ (FLEXALIGNOF (type) - 1))
/* Yield a properly aligned upper bound on the size of a struct of
type TYPE with a flexible array member named MEMBER that has N
elements. The result is suitable as an argument to malloc.
For example:
struct s { int a; double d[FLEXIBLE_ARRAY_MEMBER]; };
struct s *p = malloc (FLEXNSIZEOF (struct s, d, n));
*/
#define FLEXNSIZEOF(type, member, n) \
FLEXSIZEOF (type, member, (n) * sizeof (((type *) 0)->member[0]))