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you-075a.lha
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you-075a
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vectors.c
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C/C++ Source or Header
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1992-06-18
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7KB
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284 lines
/* ******************************************************************** */
/* vector.c Copyright (C) Codemist and University of Bath 1989 */
/* */
/* Wild thing */
/* ******************************************************************** */
/*
* $Id: vectors.c,v 1.5 1992/06/16 19:31:54 pab Exp $
*
* $Log: vectors.c,v $
* Revision 1.5 1992/06/16 19:31:54 pab
* added primitive operations
*
* Revision 1.4 1992/01/09 22:29:12 pab
* Fixed for low tag ints
*
* Revision 1.3 1991/12/22 15:14:46 pab
* Xmas revision
*
* Revision 1.2 1991/09/11 12:07:52 pab
* 11/9/91 First Alpha release of modified system
*
* Revision 1.1 1991/08/12 16:50:13 pab
* Initial revision
*
* Revision 1.3 1991/02/13 18:27:11 kjp
* Pass.
*
*/
#define KJPDBG(x)
/*
* Change Log:
* Version 1, October 1989
* Hacked everything - not robust ( even slightly ) (24/10/89) KJP
* Properly + GC protect (hopefully)
*
* Garbage checked - OK.
*/
#include <stdio.h>
#include "funcalls.h"
#include "defs.h"
#include "structs.h"
#include "global.h"
#include "error.h"
#include "bootstrap.h"
/* Modulise: allocation */
#include "modboot.h"
#define VECTORS_ENTRIES 11
MODULE Module_vectors;
LispObject Module_vectors_values[VECTORS_ENTRIES];
static LispObject maximum_vector_index;
/* End Modulise: allocation*/
EUFUN_1( Fn_vectorp, obj)
{
return((typeof(obj) == TYPE_VECTOR?lisptrue:nil));
}
EUFUN_CLOSE
EUFUN_2( Fn_make_vector, n, obj)
{
LispObject vector;
int i;
while (!is_fixnum(n))
n = CallError(stacktop,
"Non-integer vector length in 'make-vector'",n,CONTINUABLE);
if (intval(n) < 0)
CallError(stacktop,
"Non-positive vector length in 'make-vector'",n,NONCONTINUABLE);
/*
if (intval(n) == 0) return(nil);
*/
if (intval(n) > intval(maximum_vector_index))
CallError(stacktop,
"Vector length in 'make-vector' too large",n,NONCONTINUABLE);
/* For the moment using object as an initialisation argument */
vector = (LispObject) allocate_vector(stacktop,intval(n));
obj = ARG_1(stackbase);
for (i = 0; i < intval(n); ++i) vrefupdate(vector,i,obj);
return(vector);
}
EUFUN_CLOSE
EUFUN_2( Fn_make_vector_optional, n, args)
{
return(EUCALL_2(Fn_make_vector,n,(args == nil ? nil : CAR(args))));
}
EUFUN_CLOSE
EUFUN_1( Fn_vector_length, vect)
{
LispObject len;
while (!is_vector(vect))
vect = CallError(stacktop,
"Non-vector in 'vector-length'",vect,CONTINUABLE);
len = (LispObject) allocate_integer(stacktop,vect->VECTOR.length);
return(len);
}
EUFUN_CLOSE
EUFUN_2( Fn_vector_ref, vect, n)
{
while (!is_vector(vect))
vect = CallError(stacktop,
"Non-vector in 'vector-ref'", vect, CONTINUABLE);
while (!is_fixnum(n))
vect = CallError(stacktop,
"Non-integer in 'vector-ref'",
ARG_1(stackbase), CONTINUABLE );
n = ARG_1(stackbase);
if (intval(n) < 0 || intval(n) >= vect->VECTOR.length)
CallError(stacktop,"Index out of range in 'vector-ref'",n,NONCONTINUABLE);
return(vref(vect,intval(n)));
}
EUFUN_CLOSE
EUFUN_3( Fn_vector_ref_updator, vect, n, obj)
{
while (!is_vector(vect))
vect = CallError(stacktop,
"Non-vector in 'vector-ref-updator'", vect, CONTINUABLE);
while (!is_fixnum(n))
vect = CallError(stacktop,
"Non-integer in 'vector-ref-updator'",
ARG_1(stackbase), CONTINUABLE );
n = ARG_1(stackbase);
if (intval(n) < 0 || intval(n) >= vect->VECTOR.length)
CallError(stacktop,
"Index out of range in 'vector-ref-updator'",n,NONCONTINUABLE);
vect = ARG_0(stackbase);
obj = ARG_2(stackbase);
vrefupdate(vect,intval(n),obj);
return(obj);
}
EUFUN_CLOSE
EUFUN_1( Fn_vector, forms)
{
LispObject vect;
int i, vlen;
/*
if (forms == nil)
CallError("Can't make zero length vector in 'vector'",nil,NONCONTINUABLE);
*/
EUCALLSET_1(vect, Fn_length, forms);
vlen = intval(vect);
vect = (LispObject) allocate_vector(stacktop,vlen);
forms = ARG_0(stackbase);
for (i = 0; i < vlen; ++i) {
vrefupdate(vect,i,CAR(forms));
forms = CDR( forms );
}
return(vect);
}
EUFUN_CLOSE
/* This should just be a method to 'convert' when it exists */
EUFUN_1( Fn_convert_vector_list, vect )
{
LispObject newlist;
int i;
while (!is_vector(vect)) {
vect = CallError(stacktop,
"Non-vector in vector coercion", vect, CONTINUABLE );
}
newlist = nil;
for ( i = vect->VECTOR.length; i > 0; --i ) {
ARG_0(stackbase) = vect;
EUCALLSET_2(newlist, Fn_cons, vref( vect, i-1 ), newlist );
vect = ARG_0(stackbase);
}
return( newlist );
}
EUFUN_CLOSE
EUFUN_2(Fn_make_primitive_object, class, size)
{
LispObject tmp;
tmp=allocate_vector(stacktop,intval(size));
lval_classof(tmp)=class;
return tmp;
}
EUFUN_CLOSE
EUFUN_2(Fn_primitive_ref, o, n)
{
return vref(o,intval(n));
}
EUFUN_CLOSE
EUFUN_3(Fn_primitive_ref_setter, o, n ,v)
{
vref(o,intval(n))=v;
return v;
}
EUFUN_CLOSE
/* Generic prin... */
EUFUN_2( Md_generic_prin_Vector, vect, str)
{
if (!is_stream(str))
CallError(stacktop,"generic-prin: non-stream argument",str,NONCONTINUABLE);
fprintf(str->STREAM.handle,"#V(something)");
return(vect);
}
EUFUN_CLOSE
void initialise_vectors(LispObject* stacktop)
{
LispObject getter, setter;
/* Modulise: initialisation */
open_module(stacktop,
&Module_vectors,Module_vectors_values,"vectors",VECTORS_ENTRIES);
(void) make_module_function(stacktop,"vectorp",Fn_vectorp,1);
(void) make_module_function(stacktop,
"make-vector",Fn_make_vector_optional,-2);
(void) make_module_function(stacktop,"vector-length",Fn_vector_length,1);
getter = make_module_function(stacktop,"vector-ref",Fn_vector_ref,2);
STACK_TMP(getter);
setter = make_module_function(stacktop,
"vector-ref-updator",Fn_vector_ref_updator,3);
UNSTACK_TMP(getter);
set_anon_associate(stacktop,getter,setter);
(void) make_module_function(stacktop,"make-initialized-vector",Fn_vector,-1);
(void) make_module_function(stacktop,
"convert-vector-list",Fn_convert_vector_list,1);
maximum_vector_index = allocate_integer(stacktop,0xfffff);
add_root(&maximum_vector_index);
(void) make_module_entry(stacktop,"*maximum-vector-index*",maximum_vector_index);
(void) make_module_function(stacktop,"make-primitive-object",Fn_make_primitive_object,3);
(void) make_module_function(stacktop,"primitive-ref",Fn_primitive_ref,2);
(void) make_module_function(stacktop,"set-primitive-ref",Fn_primitive_ref_setter,3);
close_module();
}