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add SCM_HEAP_OBJECT_BASE

* libguile/tags.h (SCM_HEAP_OBJECT_BASE): New macro.  Given a SCM,
  returns a pointer to the start of its memory area on the heap.

* libguile/bytevectors.c:
* libguile/fluids.c:
* libguile/foreign.c:
* libguile/gc.h:
* libguile/guardians.c:
* libguile/numbers.h:
* libguile/ports.c:
* libguile/smob.c:
* libguile/struct.c:
* libguile/weak-set.c:
* libguile/weak-table.c:
* libguile/weak-vector.c: Use it.
This commit is contained in:
Andy Wingo 2011-10-24 18:22:35 +02:00
parent 8c5bb72920
commit 47ed8656db
14 changed files with 41 additions and 25 deletions

View file

@ -333,7 +333,7 @@ scm_c_shrink_bytevector (SCM bv, size_t c_new_len)
SCM_BYTEVECTOR_SET_LENGTH (bv, c_new_len);
if (SCM_BYTEVECTOR_CONTIGUOUS_P (bv))
new_bv = PTR2SCM (scm_gc_realloc (SCM2PTR (bv),
new_bv = SCM_PACK_POINTER (scm_gc_realloc (SCM_HEAP_OBJECT_BASE (bv),
c_len + SCM_BYTEVECTOR_HEADER_BYTES,
c_new_len + SCM_BYTEVECTOR_HEADER_BYTES,
SCM_GC_BYTEVECTOR));