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author | Mikael Djurfeldt <djurfeldt@nada.kth.se> | 1996-10-20 03:28:34 +0000 |
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committer | Mikael Djurfeldt <djurfeldt@nada.kth.se> | 1996-10-20 03:28:34 +0000 |
commit | 898a256f9156643b4ceb275776372ee4380b8df1 (patch) | |
tree | fad48588aa635930dd21135883d0db9bcf6fab91 /libguile/throw.c | |
parent | 3f46d9597804cda1f9d92ef239007b3b8b35ddb8 (diff) | |
download | guile-898a256f9156643b4ceb275776372ee4380b8df1.tar.gz |
* pairs.h, eval.c, gc.c, init.c, ioext.c, ports.c, ports.h,
srcprop.h, tags.h, throw.c, unif.c: Added new selectors
SCM_SETAND_CAR, SCM_SETAND_CDR, SCM_SETOR_CAR and SCM_SETOR_CDR.
Motivation: Safer use. Some other macros are defined in terms of
these operations. If these are defined using the SCM_SETCXR
(<e1>, SCM_CXR (<e1>) <op> <e2>) pattern a complex <e1> will lead
to inefficiency and an <e1> with side-effects could potentially
break. Also, these particular operations are heavily utilized in
the garbage collector. In unoptimized code there will be a
measurable speedup.
* alist.c, arbiters.c, continuations.c, debug.c, debug.h, eval.c,
eval.h, feature.c, filesys.c, fports.c, gc.c, gsubr.c, init.c,
ioext.c, kw.c, list.c, load.c, mallocs.c, numbers.c, numbers.h,
pairs.c, pairs.h, ports.c, ports.h, posix.c, procprop.c, procs.c,
procs.h, ramap.c, read.c, root.c, srcprop.c, srcprop.h,
strports.c, symbols.c, tags.h, throw.c, unif.c, variable.c,
vports.c: Cleaned up use of pairs: Don't make any special
assumptions about the internal structure of selectors and
mutators: SCM_CXR (<e1>) = <e2> --> SCM_SETCXR (<e1>, <e2>),
SCM_CXR (<e1>) &= <e2> --> SCM_SETAND_CXR (<e1>, <e2>) etc.
(Among other things, this change makes it easier to build Guile
with certain compilers which have problems with casted lvalues.)
Diffstat (limited to 'libguile/throw.c')
-rw-r--r-- | libguile/throw.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/libguile/throw.c b/libguile/throw.c index 195e3f74a..2b527c16a 100644 --- a/libguile/throw.c +++ b/libguile/throw.c @@ -62,8 +62,8 @@ static int scm_tc16_jmpbuffer; #define SCM_JMPBUFP(O) (SCM_TYP16(O) == scm_tc16_jmpbuffer) #define JBACTIVE(O) (SCM_CAR (O) & (1L << 16L)) -#define ACTIVATEJB(O) (SCM_CAR (O) |= (1L << 16L)) -#define DEACTIVATEJB(O) (SCM_CAR (O) &= ~(1L << 16L)) +#define ACTIVATEJB(O) (SCM_SETOR_CAR (O, (1L << 16L))) +#define DEACTIVATEJB(O) (SCM_SETAND_CAR (O, ~(1L << 16L))) #ifndef DEBUG_EXTENSIONS #define JBJMPBUF(O) ((jmp_buf*)SCM_CDR (O) ) @@ -71,7 +71,7 @@ static int scm_tc16_jmpbuffer; #else #define SCM_JBDFRAME(O) ((scm_debug_frame*)SCM_CAR (SCM_CDR (O)) ) #define JBJMPBUF(O) ((jmp_buf*)SCM_CDR (SCM_CDR (O)) ) -#define SCM_SETJBDFRAME(O,X) SCM_CAR(SCM_CDR (O)) = (SCM)(X) +#define SCM_SETJBDFRAME(O,X) SCM_SETCAR (SCM_CDR (O), (SCM)(X)) #define SETJBJMPBUF(O,X) SCM_SETCDR(SCM_CDR (O), X) static scm_sizet freejb SCM_P ((SCM jbsmob)); @@ -122,7 +122,7 @@ make_jmpbuf () char *mem = scm_must_malloc (sizeof (scm_cell), "jb"); SCM_SETCDR (answer, (SCM) mem); #endif - SCM_CAR(answer) = scm_tc16_jmpbuffer; + SCM_SETCAR (answer, scm_tc16_jmpbuffer); SETJBJMPBUF(answer, (jmp_buf *)0); DEACTIVATEJB(answer); } |