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* pairs.h, eval.c, gc.c, init.c, ioext.c, ports.c, ports.h,

Browse source 
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.)
This commit is contained in:
Mikael Djurfeldt 1996-10-20 03:28:34 +00:00
parent 3f46d95978
commit 898a256f91
8 changed files with 34 additions and 32 deletions
Download patch file Download diff file Expand all files Collapse all files

10
libguile/init.c
View file

@ -145,13 +145,13 @@ scm_start_stack (base, in, out, err)
{
SCM_NEWCELL (scm_def_inp);
pt = scm_add_to_port_table (scm_def_inp);
SCM_CAR (scm_def_inp) = (scm_tc16_fport | SCM_OPN | SCM_RDNG);
SCM_SETCAR (scm_def_inp, (scm_tc16_fport | SCM_OPN | SCM_RDNG));
SCM_SETPTAB_ENTRY (scm_def_inp, pt);
SCM_SETSTREAM (scm_def_inp, (SCM)in);
if (isatty (fileno (in)))
{
scm_setbuf0 (scm_def_inp); /* turn off stdin buffering */
SCM_CAR (scm_def_inp) |= SCM_BUF0;
SCM_SETOR_CAR (scm_def_inp, SCM_BUF0);
}
scm_set_port_revealed_x (scm_def_inp, SCM_MAKINUM (1));
}
@ -164,7 +164,7 @@ scm_start_stack (base, in, out, err)
{
SCM_NEWCELL (scm_def_outp);
pt = scm_add_to_port_table (scm_def_outp);
SCM_CAR (scm_def_outp) = (scm_tc16_fport | SCM_OPN | SCM_WRTNG);
SCM_SETCAR (scm_def_outp, (scm_tc16_fport | SCM_OPN | SCM_WRTNG));
SCM_SETPTAB_ENTRY (scm_def_outp, pt);
SCM_SETSTREAM (scm_def_outp, (SCM)out);
scm_set_port_revealed_x (scm_def_outp, SCM_MAKINUM (1));
@ -178,7 +178,7 @@ scm_start_stack (base, in, out, err)
{
SCM_NEWCELL (scm_def_errp);
pt = scm_add_to_port_table (scm_def_errp);
SCM_CAR (scm_def_errp) = (scm_tc16_fport | SCM_OPN | SCM_WRTNG);
SCM_SETCAR (scm_def_errp, (scm_tc16_fport | SCM_OPN | SCM_WRTNG));
SCM_SETPTAB_ENTRY (scm_def_errp, pt);
SCM_SETSTREAM (scm_def_errp, (SCM)err);
scm_set_port_revealed_x (scm_def_errp, SCM_MAKINUM (1));
@ -199,7 +199,7 @@ scm_start_stack (base, in, out, err)
*/
SCM_NEWCELL (scm_rootcont);
SCM_SETJMPBUF (scm_rootcont, scm_must_malloc ((long) sizeof (scm_contregs), "continuation"));
SCM_CAR (scm_rootcont) = scm_tc7_contin;
SCM_SETCAR (scm_rootcont, scm_tc7_contin);
SCM_SEQ (scm_rootcont) = 0;
/* The root continuation if further initialized by scm_restart_stack. */