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* gc.h (SCM_MARKEDP, SCM_NMARKEDP): New macros.

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This commit is contained in:
Mikael Djurfeldt 1998-12-23 05:55:01 +00:00
parent 0493cd8974
commit 79e3f9e250
1 changed files with 7 additions and 0 deletions
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7
libguile/gc.h
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@ -50,6 +50,13 @@
#define SCM_FREEP(x) (SCM_CAR(x)==scm_tc_free_cell)
#define SCM_NFREEP(x) (!SCM_FREEP(x))
/* 1. This shouldn't be used on immediates.
2. It thinks that subrs are always unmarked (harmless). */
#define SCM_MARKEDP(x) ((SCM_CAR(x) & 5) == 5 \
? SCM_GC8MARKP(x) \
: SCM_GCMARKP(x))
#define SCM_NMARKEDP(x) (!SCM_MARKEDP(x))
extern struct scm_heap_seg_data *scm_heap_table;
extern int scm_n_heap_segs;
extern int scm_take_stdin;