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* objalloc.h (OBJALLOC_ALIGN): Define using offsetof.

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Alan Modra 2001-09-18 09:59:28 +00:00
parent dc810e3900
commit ae81c75ec3
2 changed files with 9 additions and 6 deletions
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4
include/ChangeLog
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@ -1,3 +1,7 @@
2001-09-18 Alan Modra <amodra@bigpond.net.au>
* objalloc.h (OBJALLOC_ALIGN): Define using offsetof.
2001-09-17 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> 2001-09-17 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* libiberty.h (concat_length, concat_copy, concat_copy2, * libiberty.h (concat_length, concat_copy, concat_copy2,

11
include/objalloc.h
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@ -1,5 +1,5 @@
/* objalloc.h -- routines to allocate memory for objects /* objalloc.h -- routines to allocate memory for objects
Copyright 1997 Free Software Foundation, Inc. Copyright 1997, 2001 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Cygnus Solutions. Written by Ian Lance Taylor, Cygnus Solutions.
This program is free software; you can redistribute it and/or modify it This program is free software; you can redistribute it and/or modify it
@ -56,12 +56,11 @@ struct objalloc_align { char x; double d; };
#ifndef offsetof #ifndef offsetof
#include <stddef.h> #include <stddef.h>
#endif #endif
#define OBJALLOC_ALIGN \
((ptrdiff_t) ((char *) &((struct objalloc_align *) 0)->d - (char *) 0))
#else
#define OBJALLOC_ALIGN \
((long) ((char *) &((struct objalloc_align *) 0)->d - (char *) 0))
#endif #endif
#ifndef offsetof
#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
#endif
#define OBJALLOC_ALIGN offsetof (struct objalloc_align, d)
/* Create an objalloc structure. Returns NULL if malloc fails. */ /* Create an objalloc structure. Returns NULL if malloc fails. */