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/*
STD0.C
Define various standard Yorick built-in functions declared in std.i
See std.i for documentation on the functions defined here.
$Id: std0.c,v 1.1 1993/08/27 18:32:09 munro Exp $
*/
/* Copyright (c) 1994. The Regents of the University of California.
All rights reserved. */
#include "bcast.h"
#include "yio.h"
#include "defmem.h"
#include "pstdlib.h"
#include "play.h"
#include <string.h>
#include <stdio.h>
#include <errno.h>
extern char *yVersion;
#ifndef Y_VERSION
#include "yversion.h"
#endif
char *yVersion= Y_VERSION;
#ifndef PATH_SEP
#define PATH_SEP ":"
#endif
extern BuiltIn Y_yorick_init, Y_set_path, Y_reshape, Y_array, Y_structof,
Y_dimsof, Y_orgsof, Y_sizeof, Y_numberof, Y_typeof, Y_nameof, Y_is_array,
Y_is_func, Y_is_void, Y_is_range, Y_is_struct, Y_is_stream, Y_am_subroutine,
Y_sin, Y_cos, Y_tan, Y_asin, Y_acos, Y_atan, Y_sinh, Y_cosh, Y_tanh,
Y_exp, Y_log, Y_log10, Y_sqrt, Y_ceil, Y_floor, Y_abs, Y_sign, Y_conj,
Y_min, Y_max, Y_sum, Y_avg, Y_allof, Y_anyof, Y_noneof, Y_nallof, Y_where,
Y_get_cwd, Y_get_home, Y_cd, Y_get_env, Y_get_argv, Y_use_origins;
extern BuiltIn Y_set_site, Y_timer;
/*--------------------------------------------------------------------------*/
extern void InitStructDefs(void); /* opsv.c */
extern Operand *FormOperandDB(Symbol *owner, Operand *op);
extern DataBlock *ForceToDB(Symbol *s);
extern void BuildDimList(Symbol *stack, int nArgs); /* ops3.c */
extern int ym_argc; /* set in main.c */
extern char **ym_argv;
/*--------------------------------------------------------------------------*/
static void YInit(BuiltIn **builtin, void **global,
char **name, char **include);
extern int YGetLaunchDir(char *argv0); /* sysdep.c */
extern char *yLaunchDir;
char *yLaunchDir= 0;
/* Codger-generated arrays from ycode.c used in call to YorickInit */
extern BuiltIn *yBuiltIns[];
extern void *yGlobals[];
extern char *yLinkNames[];
extern char *initialIncludes[];
extern int y_on_idle(void);
extern void y_on_stdin(char *input_line);
extern void y_on_exception(int signal, char *errmsg);
extern int y_on_quit(void);
extern void (*g_on_keyline)(char *);
extern int yBatchMode; /* may be set with -batch, see std0.c */
static void *y_mmfail(unsigned long n);
int
on_launch(int argc, char *argv[])
{
ym_argc= argc;
ym_argv= argv;
p_mmfail = y_mmfail;
YInit(yBuiltIns, yGlobals, yLinkNames, initialIncludes);
if (!yBatchMode) {
p_stdinit(y_on_stdin);
g_on_keyline = y_on_stdin;
}
p_idler(y_on_idle);
p_handler(y_on_exception);
p_quitter(y_on_quit);
return 0;
}
static void *
y_mmfail(unsigned long n)
{
if (p_signalling) p_abort();
if (!n) YError("***SEVERE*** memory manager failed during free");
sprintf(p_wkspc.c, "memory manager failed to allocate %ld bytes", n);
YError(p_wkspc.c);
return 0;
}
void Y_yorick_init(int nArgs)
{
Drop(nArgs);
YInit(yBuiltIns, yGlobals, yLinkNames, initialIncludes);
}
static char *defaultPath;
extern char *yUserPath; /* defined in ycode.c */
static void YInit(BuiltIn **builtin, void **global,
char **name, char **include)
{
long index;
DataBlock *oldDB;
/* initialize Yorick timer */
Y_timer(-1);
/* initialize basic data types */
InitStructDefs(); /* opsv.c */
/* initialize built-in functions */
while (*builtin) {
index= Globalize(*name++, 0L);
oldDB= globTab[index].ops==&dataBlockSym? globTab[index].value.db : 0;
if (!oldDB || oldDB->ops!=&builtinOps ||
((BIFunction *)oldDB)->function!=*builtin) {
globTab[index].value.db= (DataBlock *)NewBIFunction(*builtin, index);
globTab[index].ops= &dataBlockSym;
Unref(oldDB);
}
builtin++;
}
/* initialize compiled variables */
while (*global) {
index= Globalize(*name++, 0L);
oldDB= globTab[index].ops==&dataBlockSym? globTab[index].value.db : 0;
globTab[index].value.db=
(DataBlock *)NewLValueM((Array *)0, *global++,
&charStruct, (Dimension *)0);
/* note: everything starts out as a scalar char at the correct address
-- the reshape operation when the associated package include
file is read (below) will set the correct data type and
dimension list */
globTab[index].ops= &dataBlockSym;
Unref(oldDB);
}
/* set up to read user customizations
If the first two arguments are -batch alternate.i, use alternate.i
-- useful for scripts which must NOT risk user customization. */
if (ym_argc<2 || strcmp(ym_argv[1],"-batch")) {
YpPush("custom.i");
} else {
yBatchMode= 1; /* data loaded to zero in task.c */
if (ym_argc==2) {
ym_argc= 1;
} else {
int i= 3;
YpPush(ym_argv[2]);
while (i<ym_argc) { ym_argv[i-2]= ym_argv[i]; i++; }
ym_argc-= 2;
}
}
/* set up to read std.i and package include files */
while (*include) YpPush(*include++);
/* first file read is always paths.i, which may override ySiteDir */
YpPush("paths.i");
/* set startup include file search path:
yLaunchDir:ySiteDir/i0:ySiteDir/contrib
the switch to the normal include file search path is done in
stdx.i, which is included just before custom.i
-- create the default path here:
.:~/yorick:~/Yorick:ySiteDir/i:ySiteDir/contrib */
yLaunchDir = p_strcpy(ym_argc>0? ym_argv[0] : 0);
if (yLaunchDir) {
int i;
for (i=0 ; yLaunchDir[i] ; i++);
while (i>0 && yLaunchDir[i]!='/') i--;
if (yLaunchDir[i]=='/') yLaunchDir[i+1] = '\0';
}
ySiteDir = ySiteDir? p_strcpy(ySiteDir) : p_strcpy("/");
YNameToHead(&ySiteDir);
Y_set_site(0);
/* SetSignals(signalFlags); */
}
void Y_set_path(int nArgs)
{
char *path;
if (nArgs<1) path= defaultPath;
else if (nArgs==1) path= YGetString(sp);
else { YError("set_path takes at most one argument"); path= 0; }
YpSetPaths(path);
}
void Y_set_site(int nArgs)
{
/* This function should ONLY be called from paths.i, or by YInit */
char *path, *pathtmp, *site;
Array *dirName;
DataBlock *oldDB;
long index;
if (nArgs>2) YError("expecting zero, one, or two arguments");
/* record Y_LAUNCH in global variable */
index= Globalize("Y_LAUNCH", 0L);
oldDB= globTab[index].ops==&dataBlockSym? globTab[index].value.db : 0;
dirName= NewArray(&stringStruct, (Dimension *)0);
globTab[index].value.db= (DataBlock *)dirName;
globTab[index].ops= &dataBlockSym;
Unref(oldDB);
dirName->value.q[0]= p_strcpy(yLaunchDir);
if (nArgs>=1) {
path= YGetString(sp-nArgs+1);
if (nArgs==2) yHomeDir= YGetString(sp);
} else {
#ifndef NO_FALLBACK_TEST
p_file *test = 0;
if (ySiteDir && ySiteDir[0]) {
path= p_strncat(ySiteDir, "i0/std.i", 0);
test= p_fopen(path, "r");
p_free(path);
}
if (test) {
p_fclose(test);
} else if (yLaunchDir) {
/* ySiteDir is not correct, make last ditch effort to find it */
long i = strlen(yLaunchDir);
if (i > 1) {
for (i-=2 ; i>0 ; i-=2)
if (yLaunchDir[i-1]!='/' || yLaunchDir[i]!='.') break;
for (; i>0 ; i--) if (yLaunchDir[i]=='/') break;
path = p_malloc(i+9);
strncpy(path, yLaunchDir, i+1);
strcpy(path+i+1, "i0/std.i");
test= p_fopen(path, "r");
if (test) {
p_fclose(test);
path[i+1] = '\0';
ySiteDir= path;
/* if ySiteDir was bad, so is yHomeDir, guess the same */
yHomeDir = p_strcpy(ySiteDir);
} else {
p_free(path);
}
}
}
#endif
path= ySiteDir;
}
/* record Y_VERSION in global variable */
index= Globalize("Y_VERSION", 0L);
oldDB= globTab[index].ops==&dataBlockSym? globTab[index].value.db : 0;
dirName= NewArray(&stringStruct, (Dimension *)0);
globTab[index].value.db= (DataBlock *)dirName;
globTab[index].ops= &dataBlockSym;
Unref(oldDB);
dirName->value.q[0]= p_strcpy(yVersion);
/* record Y_HOME in global variable */
index= Globalize("Y_HOME", 0L);
oldDB= globTab[index].ops==&dataBlockSym? globTab[index].value.db : 0;
dirName= NewArray(&stringStruct, (Dimension *)0);
globTab[index].value.db= (DataBlock *)dirName;
globTab[index].ops= &dataBlockSym;
Unref(oldDB);
dirName->value.q[0]= p_strcpy(yHomeDir);
YNameToHead(dirName->value.q);
/* record Y_SITE in global variable */
index= Globalize("Y_SITE", 0L);
oldDB= globTab[index].ops==&dataBlockSym? globTab[index].value.db : 0;
dirName= NewArray(&stringStruct, (Dimension *)0);
globTab[index].value.db= (DataBlock *)dirName;
globTab[index].ops= &dataBlockSym;
Unref(oldDB);
dirName->value.q[0]= p_strcpy(path);
YNameToHead(dirName->value.q);
site= dirName->value.q[0];
/* construct startup include file search path:
yLaunchDir:ySiteDir/i0:ySiteDir/contrib */
if (yLaunchDir && strlen(yLaunchDir) &&
strcmp(yLaunchDir, site)) pathtmp= p_strncat(yLaunchDir, PATH_SEP, 0);
else pathtmp= 0;
path= p_strncat(pathtmp, site, 0);
p_free(pathtmp);
pathtmp= p_strncat(path, "i0", 0);
p_free(path);
path= p_strncat(pathtmp, PATH_SEP, 0);
p_free(pathtmp);
pathtmp= p_strncat(path, site, 0);
p_free(path);
path= p_strncat(pathtmp, "contrib", 0);
p_free(pathtmp);
/* set the initial include path */
YpSetPaths(path);
p_free(path);
/* the switch to the normal include file search path is done in
stdx.i, which is included just before custom.i
-- create the default path here:
.:~/yorick:~/Yorick:ySiteDir/i:ySiteDir/contrib */
if (yUserPath)
path= p_strncat(yUserPath, PATH_SEP, 0);
else
path= 0;
/* if (yLaunchDir && yLaunchDir[0] &&
* strcmp(yLaunchDir, site)) {
* pathtmp= p_strncat(path, yLaunchDir, 0);
* p_free(path);
* path= p_strncat(pathtmp, "i" PATH_SEP, 0);
* p_free(pathtmp);
* }
*/
pathtmp= p_strncat(path, site, 0);
p_free(path);
path= p_strncat(pathtmp, "i" PATH_SEP, 0);
p_free(pathtmp);
pathtmp= p_strncat(path, site, 0);
p_free(path);
path= p_strncat(pathtmp, "contrib", 0);
p_free(pathtmp);
defaultPath= path;
}
/*--------------------------------------------------------------------------*/
void Y_reshape(int nArgs)
{
Symbol *arg= sp-nArgs+1;
long index;
DataBlock *db;
if (nArgs<1 || arg->ops!=&referenceSym)
YError("first argument to reshape must be variable reference");
index= arg->index;
arg++;
nArgs--;
db= globTab[index].value.db; /* might not be meaningful... */
if (!nArgs) {
/* reshape, var
same as var=[], but works for LValues as well */
globTab[index].value.db= Ref(&nilDB);
if (globTab[index].ops==&dataBlockSym) { Unref(db); }
else globTab[index].ops= &dataBlockSym;
Drop(1);
} else {
StructDef *base= 0;
void *address= 0;
Array *owner= 0;
LValue *result;
DataBlock *adb= 0;
if (arg->ops==&referenceSym) ReplaceRef(arg);
if (arg->ops==&dataBlockSym) {
adb= arg->value.db;
if (adb->ops==&structDefOps) {
/* reshape, var, ->type, dimlist
uses address of the current value of var */
base= (StructDef *)adb;
db= ForceToDB(&globTab[index]);
if (db->ops==&lvalueOps) {
LValue *lvalue= (LValue *)db;
if (lvalue->type.base->file)
YError("cannot reshape a disk-resident variable");
address= lvalue->address.m;
owner= lvalue->owner;
} else if (db->ops->isArray) {
Array *array= (Array *)db;
address= array->value.c;
owner= array;
} else {
YError("cannot reshape non-array object");
}
} else if ((adb->ops==&pointerOps ||
adb->ops==&intOps || adb->ops==&longOps) &&
!((Array *)adb)->type.dims) {
/* reshape, var, ->address, type, dimlist */
Array *array= (Array *)adb;
if (adb->ops==&pointerOps) {
address= array->value.p[0];
owner= Pointee(address);
} else if (adb->ops==&intOps) {
address= (char *)0 + array->value.i[0];
owner= 0;
} else {
address= (char *)0 + array->value.l[0];
owner= 0;
}
} else {
badd:
YError("reshape address must be scalar pointer, int, or long");
}
} else if (arg->ops==&intScalar) {
/* reshape, var, ->address, type, dimlist */
address= (char *)0 + arg->value.i;
owner= 0;
} else if (arg->ops==&longScalar) {
/* reshape, var, ->address, type, dimlist */
address= (char *)0 + arg->value.l;
owner= 0;
} else {
goto badd;
}
arg++;
nArgs--;
if (!base) {
if (!nArgs) YError("no data type specified for reshape");
/* reshape, var, address, ->type, dimlist */
if (arg->ops==&referenceSym) ReplaceRef(arg);
if (arg->ops==&dataBlockSym && arg->value.db->ops==&structDefOps)
base= (StructDef *)arg->value.db;
else
YError("bad data type specified for reshape");
arg++;
nArgs--;
}
BuildDimList(arg, nArgs);
result= PushDataBlock(NewLValueM(owner, address, base, tmpDims));
if (owner) {
char *end= owner->value.c +
owner->type.number*owner->type.base->size;
char *last= result->address.m +
result->type.number*result->type.base->size;
if (last>end) {
Drop(1);
YError("reshape beyond bounds of array owner");
}
}
PopTo(&globTab[index]);
}
}
/*--------------------------------------------------------------------------*/
void Y_array(int nArgs)
{
Symbol *stack= sp-nArgs+1;
StructDef *base;
Operand op;
Dimension *dims;
void *value;
Array *result;
if (nArgs < 1) YError("too few arguments to array() function");
/* get type or value argument */
if (!stack->ops) goto barf;
stack->ops->FormOperand(stack, &op);
if (op.ops==&structDefOps) {
dims= 0;
base= op.value;
value= 0;
} else if (op.ops->isArray) {
dims= op.type.dims;
base= op.type.base;
value= op.value;
} else {
barf:
YError("first argument to array() must be either type or value");
dims= 0;
base= 0;
value= 0;
}
BuildDimList(stack+1, nArgs-1);
if (dims) {
if (tmpDims) {
Dimension *d= tmpDims;
while (d->next) d= d->next;
d->next= Ref(dims);
} else {
tmpDims= Ref(dims);
}
}
/* push result Array, then fill it with either value or 0 */
result= PushDataBlock(NewArray(base, tmpDims));
if (value) {
Broadcast(result->value.c, tmpDims, value, dims, base);
} else if (base->Copy==&CopyX) {
memset(result->value.c, 0, result->type.number*result->type.base->size);
}
}
/*--------------------------------------------------------------------------*/
static Member type;
/* sets static type variable and returns 0, or sets type.base==0 and
returns DataBlock* to non-Array object */
static DataBlock *GetInfo(Symbol *s);
static DataBlock *GetInfo(Symbol *s)
{
DataBlock *db= 0;
for (;;) {
if (s->ops==&doubleScalar) {
type.base= &doubleStruct;
type.dims= 0;
type.number= 1;
break;
} else if (s->ops==&longScalar) {
type.base= &longStruct;
type.dims= 0;
type.number= 1;
break;
} else if (s->ops==&intScalar) {
type.base= &intStruct;
type.dims= 0;
type.number= 1;
break;
} else if (s->ops==&dataBlockSym) {
db= s->value.db;
if (db->ops==&lvalueOps) {
LValue *lvalue= (LValue *)db;
type.base= lvalue->type.base;
type.dims= lvalue->type.dims;
type.number= lvalue->type.number;
} else if (db->ops->isArray) {
Array *array= (Array *)db;
type.base= array->type.base;
type.dims= array->type.dims;
type.number= array->type.number;
} else {
type.base= 0;
type.dims= 0;
type.number= 0;
}
break;
} else if (s->ops==&referenceSym) {
s= &globTab[s->index];
} else {
YError("unexpected keyword argument");
}
}
return type.base? 0 : db;
}
void Y_structof(int nArgs)
{
DataBlock *db;
if (nArgs != 1) YError("structof takes exactly one argument");
db= GetInfo(sp);
if (!db) PushDataBlock(Ref(type.base));
else PushDataBlock(Ref(&nilDB));
}
Dimension *dimsofDims= 0;
void Y_dimsof(int nArgs)
{
DataBlock *db;
Symbol *stack= sp-nArgs+1;
Dimension *tmp= dimsofDims;
dimsofDims= 0;
FreeDimension(tmp);
if (nArgs < 1) YError("dimsof requires at least one argument");
db= GetInfo(stack++);
nArgs--;
dimsofDims= Ref(type.dims);
while (nArgs--) {
db= GetInfo(stack++);
if (db) break;
if (Conform(dimsofDims, type.dims) & 4) {
db= (DataBlock *)&charStruct; /* anything non-0 */
break;
}
tmp= dimsofDims;
dimsofDims= 0;
FreeDimension(tmp);
dimsofDims= Ref(tmpDims);
}
if (!db) {
int nDims= CountDims(dimsofDims);
long *l;
Array *result;
tmp= tmpDims;
tmpDims= 0;
FreeDimension(tmp);
tmpDims= NewDimension((long)(nDims+1), 1L, (Dimension *)0);
result= PushDataBlock(NewArray(&longStruct, tmpDims));
l= result->value.l;
*l= nDims;
l+= nDims;
tmp= dimsofDims;
while (tmp) {
*l--= tmp->number;
tmp= tmp->next;
}
} else {
PushDataBlock(Ref(&nilDB));
}
}
void Y_orgsof(int nArgs)
{
DataBlock *db;
if (nArgs != 1) YError("orgsof takes exactly one argument");
db= GetInfo(sp);
if (!db) {
int nDims= CountDims(type.dims);
long *l;
Array *result;
Dimension *tmp= tmpDims;
tmpDims= 0;
FreeDimension(tmp);
tmpDims= NewDimension((long)(nDims+1), 1L, (Dimension *)0);
result= PushDataBlock(NewArray(&longStruct, tmpDims));
l= result->value.l;
*l= nDims;
l+= nDims;
while (type.dims) {
*l--= yForceOrigin? 1L : type.dims->origin;
type.dims= type.dims->next;
}
} else {
PushDataBlock(Ref(&nilDB));
}
}
void Y_sizeof(int nArgs)
{
DataBlock *db;
long size;
if (nArgs != 1) YError("sizeof takes exactly one argument");
db= GetInfo(sp);
if (!db) {
size= type.number*type.base->size;
} else if (db->ops==&structDefOps) {
size= ((StructDef *)db)->size;
} else if (db->ops==&streamOps) {
/* return length of file in bytes */
IOStream *file= (IOStream *)db;
IOOperations *ioOps= file->ioOps;
long address;
if (file->history) file= file->history->child;
ioOps= file->ioOps;
address= ioOps->Tell(file, 0L);
ioOps->SeekEnd(file, 0L);
size= ioOps->Tell(file, 0L);
ioOps->Seek(file, address);
} else {
size= 0;
}
Drop(2);
PushLongValue(size);
}
void Y_numberof(int nArgs)
{
DataBlock *db;
long number;
if (nArgs != 1) YError("numberof takes exactly one argument");
db= GetInfo(sp);
if (!db) number= type.number;
else number= 0;
Drop(2);
PushLongValue(number);
}
void Y_typeof(int nArgs)
{
DataBlock *db;
char *typeName;
Array *result;
if (nArgs != 1) YError("typeof takes exactly one argument");
db= GetInfo(sp);
if (!db) typeName= type.base->dataOps->typeName;
else typeName= db->ops->typeName;
Drop(2);
result= PushDataBlock(NewArray(&stringStruct, (Dimension *)0));
result->value.q[0]= p_strcpy(typeName);
}
void Y_nameof(int nArgs)
{
DataBlock *db;
char *name= 0;
if (nArgs != 1) YError("nameof takes exactly one argument");
db= GetInfo(sp);
if (!db) name= 0;
else if (db->ops==&structDefOps) {
name= StructName((StructDef *)db);
} else {
long index;
if (db->ops==&functionOps) index= ((Function *)db)->code[0].index;
else if (db->ops==&builtinOps) index= ((BIFunction *)db)->index;
else index= -1;
if (index>=0) name= globalTable.names[index];
else name= 0;
}
Drop(2);
if (!name) {
PushDataBlock(Ref(&nilDB));
} else {
Array *result= PushDataBlock(NewArray(&stringStruct, (Dimension *)0));
result->value.q[0]= p_strcpy(name);
}
}
/*--------------------------------------------------------------------------*/
void Y_is_array(int nArgs)
{
Symbol *s= sp;
int isArray;
if (nArgs != 1) YError("is_array takes exactly one argument");
for (;;) {
if (s->ops==&dataBlockSym) {
Operations *ops= s->value.db->ops;
isArray= (ops==&lvalueOps || ops->isArray);
break;
} else if (s->ops!=&referenceSym) {
isArray= 1;
break;
}
s= &globTab[s->index];
}
PushIntValue(isArray);
}
void Y_is_func(int nArgs)
{
Symbol *s= sp;
int isFunc;
if (nArgs != 1) YError("is_func takes exactly one argument");
for (;;) {
if (s->ops==&dataBlockSym) {
Operations *ops= s->value.db->ops;
if (ops==&functionOps) isFunc= 1;
else if (ops==&builtinOps) isFunc= 2;
else isFunc= 0;
break;
} else if (s->ops!=&referenceSym) {
isFunc= 0;
break;
}
s= &globTab[s->index];
}
PushIntValue(isFunc);
}
void Y_is_void(int nArgs)
{
Symbol *s= sp;
int isVoid;
if (nArgs != 1) YError("is_void takes exactly one argument");
for (;;) {
if (s->ops==&dataBlockSym) {
Operations *ops= s->value.db->ops;
isVoid= (ops==&voidOps);
break;
} else if (s->ops!=&referenceSym) {
isVoid= 0;
break;
}
s= &globTab[s->index];
}
PushIntValue(isVoid);
}
void Y_is_range(int nArgs)
{
Symbol *s= sp;
int isRange;
if (nArgs != 1) YError("is_range takes exactly one argument");
for (;;) {
if (s->ops==&dataBlockSym) {
Operations *ops= s->value.db->ops;
isRange= (ops==&rangeOps);
break;
} else if (s->ops!=&referenceSym) {
isRange= 0;
break;
}
s= &globTab[s->index];
}
PushIntValue(isRange);
}
void Y_is_struct(int nArgs)
{
Symbol *s= sp;
int isStruct;
if (nArgs != 1) YError("is_struct takes exactly one argument");
for (;;) {
if (s->ops==&dataBlockSym) {
Operations *ops= s->value.db->ops;
isStruct= (ops==&structDefOps);
break;
} else if (s->ops!=&referenceSym) {
isStruct= 0;
break;
}
s= &globTab[s->index];
}
PushIntValue(isStruct);
}
void Y_is_stream(int nArgs)
{
Symbol *s= sp;
int isStream;
if (nArgs != 1) YError("is_stream takes exactly one argument");
for (;;) {
if (s->ops==&dataBlockSym) {
Operations *ops= s->value.db->ops;
isStream= (ops==&streamOps);
break;
} else if (s->ops!=&referenceSym) {
isStream= 0;
break;
}
s= &globTab[s->index];
}
PushIntValue(isStream);
}
/*--------------------------------------------------------------------------*/
extern VMaction DropTop;
void Y_am_subroutine(int nArgs)
{
Symbol *stack= sp;
Instruction *pcRet= 0;
while (stack>spBottom) {
if (stack->ops==&returnSym) {
pcRet= stack->value.pc;
break;
}
stack--;
}
if (!pcRet) YError("am_subroutine lost return pc -- corrupt stack?");
PushIntValue(pcRet->Action==&DropTop);
}
/*--------------------------------------------------------------------------*/
extern void *BuildResultU(Operand *op, StructDef *base);
extern void *BuildResult2(Operand *l, Operand *r);
extern void PopToI(Symbol *s);
extern void PopToL(Symbol *s);
extern void PopToD(Symbol *s);
static void PopToX(Symbol *s, int typeID);
static void PopToX(Symbol *s, int typeID)
{
if (typeID==T_INT) PopToI(s);
else if (typeID==T_LONG) PopToL(s);
else if (typeID==T_DOUBLE) PopToD(s);
else PopTo(s);
}
static Array *Force1D(Operand *op);
typedef void Looper(double *dst, double *src, long n);
static void UnaryTemplate(int nArgs, Looper *DLooper, Looper *ZLooper);
static void UnaryTemplate(int nArgs, Looper *DLooper, Looper *ZLooper)
{
Operand op;
int promoteID;
if (nArgs != 1) YError("expecting exactly one argument");
sp->ops->FormOperand(sp, &op);
promoteID= op.ops->promoteID;
errno = 0;
if (promoteID<=T_DOUBLE) {
if (promoteID<T_DOUBLE) op.ops->ToDouble(&op);
DLooper(BuildResultU(&op, &doubleStruct), op.value, op.type.number);
PopToD(sp-2);
} else {
if (promoteID>T_COMPLEX) YError("expecting numeric argument");
ZLooper(BuildResultU(&op, &complexStruct), op.value, 2*op.type.number);
PopTo(sp-2);
}
if (errno) YError("mathlib function signals error");
Drop(1);
}
/* ANSI standard math.h functions */
extern double sin(double);
extern double cos(double);
extern double tan(double);
extern double asin(double);
extern double acos(double);
extern double atan(double);
extern double atan2(double, double);
extern double sinh(double);
extern double cosh(double);
extern double tanh(double);
extern double exp(double);
extern double log(double);
extern double log10(double);
extern double sqrt(double);
extern double ceil(double);
extern double floor(double);
/* function either present in math library or implemented in nonc.c */
extern double hypot(double, double);
/* complex equivalents are defined in nonc.c */
extern void sinZ(double z[2], double x[2]);
extern void cosZ(double z[2], double x[2]);
extern void tanZ(double z[2], double x[2]);
extern void asinZ(double z[2], double x[2]);
extern void acosZ(double z[2], double x[2]);
extern void atanZ(double z[2], double x[2]);
extern void sinhZ(double z[2], double x[2]);
extern void coshZ(double z[2], double x[2]);
extern void tanhZ(double z[2], double x[2]);
extern void expZ(double z[2], double x[2]);
extern void logZ(double z[2], double x[2]);
extern void sqrtZ(double z[2], double x[2]);
extern void signZ(double z[2], double x[2]);
/* ----- pi ----- */
double y_pi; /* value filled in by interpreter */
/* ----- sin ----- */
static Looper sinLoop, sinZLoop;
static void sinLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n ; i++) dst[i]= sin(src[i]); }
static void sinZLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i+=2) sinZ(&dst[i], &src[i]); }
void Y_sin(int nArgs) { UnaryTemplate(nArgs, &sinLoop, &sinZLoop); }
/* ----- cos ----- */
static Looper cosLoop, cosZLoop;
static void cosLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n ; i++) dst[i]= cos(src[i]); }
static void cosZLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i+=2) cosZ(&dst[i], &src[i]); }
void Y_cos(int nArgs) { UnaryTemplate(nArgs, &cosLoop, &cosZLoop); }
/* ----- tan ----- */
static Looper tanLoop, tanZLoop;
static void tanLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n ; i++) dst[i]= tan(src[i]); }
static void tanZLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i+=2) tanZ(&dst[i], &src[i]); }
void Y_tan(int nArgs) { UnaryTemplate(nArgs, &tanLoop, &tanZLoop); }
/* ----- asin ----- */
static Looper asinLoop, asinZLoop;
static void asinLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i++) dst[i]= asin(src[i]); }
static void asinZLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i+=2) asinZ(&dst[i], &src[i]); }
void Y_asin(int nArgs) { UnaryTemplate(nArgs, &asinLoop, &asinZLoop); }
/* ----- acos ----- */
static Looper acosLoop, acosZLoop;
static void acosLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i++) dst[i]= acos(src[i]); }
static void acosZLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i+=2) acosZ(&dst[i], &src[i]); }
void Y_acos(int nArgs) { UnaryTemplate(nArgs, &acosLoop, &acosZLoop); }
/* ----- atan ----- */
static Looper atanLoop, atanZLoop;
static void atanLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n ; i++) dst[i]= atan(src[i]); }
static void atanZLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i+=2) atanZ(&dst[i], &src[i]); }
void Y_atan(int nArgs)
{
if (nArgs<2) UnaryTemplate(nArgs, &atanLoop, &atanZLoop);
else if (nArgs>2) YError("atan takes one or two arguments");
else {
Operand opy, opx;
double *y, *x, *dst;
Operations *ops;
long i;
sp->ops->FormOperand(sp, &opx);
if (opx.ops->promoteID<T_DOUBLE) opx.ops->ToDouble(&opx);
(sp-1)->ops->FormOperand(sp-1, &opy);
ops= opy.ops->Promote[opx.ops->promoteID](&opy, &opx);
if (!ops ||
ops->promoteID>T_DOUBLE) YError("illegal data type to atan(y, x)");
dst= BuildResult2(&opy, &opx);
if (!dst) YError("operands not conformable in binary atan");
y= opy.value;
x= opx.value;
errno = 0;
for (i=0 ; i<opy.type.number && !errno ; i++) dst[i]= atan2(y[i], x[i]);
if (errno) YError("mathlib atan2() function signals error");
PopToD(sp-3);
Drop(2);
}
}
/* ----- sinh ----- */
static Looper sinhLoop, sinhZLoop;
static void sinhLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i++) dst[i]= sinh(src[i]); }
static void sinhZLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i+=2) sinhZ(&dst[i], &src[i]); }
void Y_sinh(int nArgs) { UnaryTemplate(nArgs, &sinhLoop, &sinhZLoop); }
/* ----- cosh ----- */
static Looper coshLoop, coshZLoop;
static void coshLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i++) dst[i]= cosh(src[i]); }
static void coshZLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i+=2) coshZ(&dst[i], &src[i]); }
void Y_cosh(int nArgs) { UnaryTemplate(nArgs, &coshLoop, &coshZLoop); }
/* ----- tanh ----- */
static Looper tanhLoop, tanhZLoop;
static void tanhLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n ; i++) dst[i]= tanh(src[i]); }
static void tanhZLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i+=2) tanhZ(&dst[i], &src[i]); }
void Y_tanh(int nArgs) { UnaryTemplate(nArgs, &tanhLoop, &tanhZLoop); }
/* ----- exp ----- */
static Looper expLoop, expZLoop;
static void expLoop(double *dst, double *src, long n)
{
long i;
for (i=0 ; i<n ; i++) {
dst[i]= exp(src[i]);
if (errno) { if (errno==ERANGE && !dst[i]) errno=0; else break; }
}
}
static void expZLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i+=2) expZ(&dst[i], &src[i]); }
void Y_exp(int nArgs) { UnaryTemplate(nArgs, &expLoop, &expZLoop); }
/* ----- log ----- */
static Looper logLoop, logZLoop;
static void logLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i++) dst[i]= log(src[i]); }
static void logZLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i+=2) logZ(&dst[i], &src[i]); }
void Y_log(int nArgs) { UnaryTemplate(nArgs, &logLoop, &logZLoop); }
/* ----- log10 ----- */
static Looper log10Loop, log10ZLoop;
static void log10Loop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i++) dst[i]= log10(src[i]); }
static void log10ZLoop(double *dst, double *src, long n)
{ YError("log10(complex) not implemented, use log"); }
void Y_log10(int nArgs) { UnaryTemplate(nArgs, &log10Loop, &log10ZLoop); }
/* ----- sqrt ----- */
static Looper sqrtLoop, sqrtZLoop;
static void sqrtLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n && !errno ; i++) dst[i]= sqrt(src[i]); }
static void sqrtZLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n ; i+=2) sqrtZ(&dst[i], &src[i]); }
void Y_sqrt(int nArgs) { UnaryTemplate(nArgs, &sqrtLoop, &sqrtZLoop); }
/* ----- ceil ----- */
static Looper ceilLoop, ceilZLoop;
static void ceilLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n ; i++) dst[i]= ceil(src[i]); }
static void ceilZLoop(double *dst, double *src, long n)
{ YError("ceil(complex) not defined"); }
void Y_ceil(int nArgs) { UnaryTemplate(nArgs, &ceilLoop, &ceilZLoop); }
/* ----- floor ----- */
static Looper floorLoop, floorZLoop;
static void floorLoop(double *dst, double *src, long n)
{ long i; for (i=0 ; i<n ; i++) dst[i]= floor(src[i]); }
static void floorZLoop(double *dst, double *src, long n)
{ YError("floor(complex) not defined"); }
void Y_floor(int nArgs) { UnaryTemplate(nArgs, &floorLoop, &floorZLoop); }
/* ----- abs ----- */
typedef void AbsLooper(void *, void *, long);
static AbsLooper absCLoop, absSLoop, absILoop, absLLoop,
absFLoop, absDLoop, absZLoop;
static void absCLoop(void *d, void *s, long n)
{ long i; char *dst= d; char *src= s;
for (i=0 ; i<n ; i++) dst[i]= src[i]<0? -src[i] : src[i]; }
static void absSLoop(void *d, void *s, long n)
{ long i; short *dst= d; short *src= s;
for (i=0 ; i<n ; i++) dst[i]= src[i]<0? -src[i] : src[i]; }
static void absILoop(void *d, void *s, long n)
{ long i; int *dst= d; int *src= s;
for (i=0 ; i<n ; i++) dst[i]= src[i]<0? -src[i] : src[i]; }
static void absLLoop(void *d, void *s, long n)
{ long i; long *dst= d; long *src= s;
for (i=0 ; i<n ; i++) dst[i]= src[i]<0? -src[i] : src[i]; }
static void absFLoop(void *d, void *s, long n)
{ long i; float *dst= d; float *src= s;
for (i=0 ; i<n ; i++) dst[i]= src[i]<0? -src[i] : src[i]; }
static void absDLoop(void *d, void *s, long n)
{ long i; double *dst= d; double *src= s;
for (i=0 ; i<n ; i++) dst[i]= src[i]<0? -src[i] : src[i]; }
static void absZLoop(void *d, void *s, long n)
{ long i; double *dst= d; double *src= s;
for (i=0 ; i<n ; i++) dst[i]= hypot(src[2*i], src[2*i+1]); }
static AbsLooper *absLoop[]= { &absCLoop, &absSLoop, &absILoop, &absLLoop,
&absFLoop, &absDLoop };
void Y_abs(int nArgs)
{
if (nArgs<2) {
Operand op;
int promoteID;
long n;
if (nArgs != 1) YError("abs requires at least one argument");
sp->ops->FormOperand(sp, &op);
promoteID= op.ops->promoteID;
n= op.type.number;
if (promoteID>T_COMPLEX) YError("abs requires numeric argument");
if (promoteID<T_COMPLEX) {
absLoop[promoteID](BuildResultU(&op, op.type.base), op.value, n);
PopToX(sp-2, promoteID);
} else {
absZLoop(BuildResultU(&op, &doubleStruct), op.value, n);
PopToD(sp-2);
}
Drop(1);
} else {
Operand opy, opx;
double *y, *x, *dst;
Operations *ops;
long i;
while (--nArgs) {
sp->ops->FormOperand(sp, &opx);
if (opx.ops->promoteID<T_DOUBLE) opx.ops->ToDouble(&opx);
(sp-1)->ops->FormOperand(sp-1, &opy);
ops= opy.ops->Promote[opx.ops->promoteID](&opy, &opx);
if (!ops || ops->promoteID>T_DOUBLE) {
if (!ops ||
ops->promoteID>T_COMPLEX) YError("illegal data type to abs(x,y)");
else YError("no abs(complex,complex), take abs of argument(s)");
}
dst= BuildResult2(&opy, &opx);
if (!dst) YError("operands not conformable in binary abs");
y= opy.value;
x= opx.value;
for (i=0 ; i<opy.type.number ; i++) dst[i]= hypot(y[i], x[i]);
PopToD(opy.owner);
Drop(1);
}
PopToD(sp-1);
}
}
/* ----- sign ----- */
static AbsLooper signCLoop, signSLoop, signILoop, signLLoop,
signFLoop, signDLoop, signZLoop;
static void signCLoop(void *d, void *s, long n)
{ long i; char *dst= d; char *src= s;
for (i=0 ; i<n ; i++) dst[i]= src[i]<0? -1 : 1; }
static void signSLoop(void *d, void *s, long n)
{ long i; short *dst= d; short *src= s;
for (i=0 ; i<n ; i++) dst[i]= src[i]<0? -1 : 1; }
static void signILoop(void *d, void *s, long n)
{ long i; int *dst= d; int *src= s;
for (i=0 ; i<n ; i++) dst[i]= src[i]<0? -1 : 1; }
static void signLLoop(void *d, void *s, long n)
{ long i; long *dst= d; long *src= s;
for (i=0 ; i<n ; i++) dst[i]= src[i]<0? -1 : 1; }
static void signFLoop(void *d, void *s, long n)
{ long i; float *dst= d; float *src= s;
for (i=0 ; i<n ; i++) dst[i]= src[i]<0? -1.f : 1.f; }
static void signDLoop(void *d, void *s, long n)
{ long i; double *dst= d; double *src= s;
for (i=0 ; i<n ; i++) dst[i]= src[i]<0? -1 : 1; }
static void signZLoop(void *d, void *s, long n)
{ long i; double *dst= d; double *src= s;
if (dst!=src) for (i=0 ; i<n ; i++) dst[i]= src[i];
for (i=0 ; i<n ; i+=2) signZ(&dst[i], &src[i]); }
static AbsLooper *signLoop[]= { &signCLoop, &signSLoop, &signILoop,
&signLLoop, &signFLoop, &signDLoop,
&signZLoop };
void Y_sign(int nArgs)
{
Operand op;
int promoteID;
long n;
if (nArgs != 1) YError("sign function requires exactly one argument");
sp->ops->FormOperand(sp, &op);
promoteID= op.ops->promoteID;
n= op.type.number;
if (promoteID>T_COMPLEX) YError("sign requires numeric argument");
if (promoteID==T_COMPLEX) n*= 2;
signLoop[promoteID](BuildResultU(&op, op.type.base), op.value, n);
PopToX(sp-2, promoteID);
Drop(1);
}
/* ----- conj ----- */
void Y_conj(int nArgs)
{
Operand op;
int promoteID;
long i, n;
double *dst, *src;
if (nArgs != 1) YError("conj requires exactly one argument");
sp->ops->FormOperand(sp, &op);
promoteID= op.ops->promoteID;
if (promoteID>T_COMPLEX) YError("conj requires numeric argument");
if (promoteID<T_COMPLEX) {
PopTo(sp-1);
return;
}
n= 2*op.type.number;
src= op.value;
dst= BuildResultU(&op, &complexStruct);
for (i=0 ; i<n ; i+=2) {
dst[i]= src[i];
dst[i+1]= -src[i+1];
}
PopTo(sp-2);
Drop(1);
}
/*--------------------------------------------------------------------------*/
extern RangeFunc RFmin, RFmax, RFsum, RFavg;
static Array *Force1D(Operand *op)
{
Array *array;
if (!op->type.dims) return 0;
if (op->owner->value.db->ops==&lvalueOps)
array= FetchLValue(op->owner->value.db, op->owner);
else
array= (Array *)op->owner->value.db;
if (op->type.dims->next) {
/* need to copy the array to a single dimensional version */
Dimension *dim= tmpDims;
tmpDims= 0;
FreeDimension(dim);
tmpDims= NewDimension(op->type.number, 1L, (Dimension *)0);
if (op->references) {
array= PushDataBlock(NewArray(op->type.base, tmpDims));
op->type.base->Copy(op->type.base, array->value.c, op->value,
op->type.number);
PopTo(op->owner);
op->value= array->value.c;
} else {
array->type.dims= Ref(tmpDims);
FreeDimension(op->type.dims);
}
op->type.dims= tmpDims;
}
return array;
}
/* ----- min ----- */
extern BinaryOp MinC, MinS, MinI, MinL, MinF, MinD;
static void MinError(void);
static void MinError(void)
{ YError("operands not conformable in binary min"); }
#undef OPERATION
#define OPERATION(opname, typd, Popper) \
void opname(Operand *l, Operand *r) \
{ typd *dst= BuildResult2(l, r); \
if (dst) { \
long i, n= l->type.number; \
typd *lv= l->value, *rv= r->value; \
for (i=0 ; i<n ; i++) dst[i]= lv[i]<=rv[i]? lv[i] : rv[i]; \
Popper(l->owner); \
} else MinError(); }
OPERATION(MinC, char, PopTo)
OPERATION(MinS, short, PopTo)
OPERATION(MinI, int, PopToI)
OPERATION(MinL, long, PopToL)
OPERATION(MinF, float, PopTo)
OPERATION(MinD, double, PopToD)
static BinaryOp *MinOps[]= { &MinC, &MinS, &MinI, &MinL, &MinF, &MinD };
void Y_min(int nArgs)
{
if (nArgs<2) {
Operand op;
Array *array;
int promoteID;
if (nArgs != 1) YError("min requires at least one argument");
sp->ops->FormOperand(sp, &op);
promoteID= op.ops->promoteID;
if (promoteID>=T_COMPLEX) YError("min requires numeric argument");
array= Force1D(&op);
if (!array) { /* scalars are trivial */
PopTo(sp-1);
return;
}
RFmin(array, 0);
PopToX(sp-2, promoteID); /* min does not change data type */
Drop(1);
} else {
Operand opy, opx;
Operations *ops;
int promoteID= -1;
while (--nArgs) {
sp->ops->FormOperand(sp, &opx);
(sp-1)->ops->FormOperand(sp-1, &opy);
ops= opy.ops->Promote[opx.ops->promoteID](&opy, &opx);
promoteID= ops? ops->promoteID : T_COMPLEX;
if (promoteID>T_DOUBLE) YError("illegal data type to min(x,y)");
MinOps[promoteID](&opy, &opx);
Drop(1);
}
PopToX(sp-1, promoteID);
}
}
/* ----- max ----- */
extern BinaryOp MaxC, MaxS, MaxI, MaxL, MaxF, MaxD;
static void MaxError(void);
static void MaxError(void)
{ YError("operands not conformable in binary max"); }
#undef OPERATION
#define OPERATION(opname, typd, Popper) \
void opname(Operand *l, Operand *r) \
{ typd *dst= BuildResult2(l, r); \
if (dst) { \
long i, n= l->type.number; \
typd *lv= l->value, *rv= r->value; \
for (i=0 ; i<n ; i++) dst[i]= lv[i]>=rv[i]? lv[i] : rv[i]; \
Popper(l->owner); \
} else MaxError(); }
OPERATION(MaxC, char, PopTo)
OPERATION(MaxS, short, PopTo)
OPERATION(MaxI, int, PopToI)
OPERATION(MaxL, long, PopToL)
OPERATION(MaxF, float, PopTo)
OPERATION(MaxD, double, PopToD)
static BinaryOp *MaxOps[]= { &MaxC, &MaxS, &MaxI, &MaxL, &MaxF, &MaxD };
void Y_max(int nArgs)
{
if (nArgs<2) {
Operand op;
Array *array;
int promoteID;
if (nArgs != 1) YError("max requires at least one argument");
sp->ops->FormOperand(sp, &op);
promoteID= op.ops->promoteID;
if (promoteID>=T_COMPLEX) YError("max requires numeric argument");
array= Force1D(&op);
if (!array) { /* scalars are trivial */
PopTo(sp-1);
return;
}
RFmax(array, 0);
PopToX(sp-2, promoteID); /* max does not change data type */
Drop(1);
} else {
Operand opy, opx;
Operations *ops;
int promoteID= -1;
while (--nArgs) {
sp->ops->FormOperand(sp, &opx);
(sp-1)->ops->FormOperand(sp-1, &opy);
ops= opy.ops->Promote[opx.ops->promoteID](&opy, &opx);
promoteID= ops? ops->promoteID : T_COMPLEX;
if (promoteID>T_DOUBLE) YError("illegal data type to max(x,y)");
MaxOps[promoteID](&opy, &opx);
Drop(1);
}
PopToX(sp-1, promoteID);
}
}
/* ----- sum ----- */
void Y_sum(int nArgs)
{
Operand op;
Array *array;
int promoteID;
if (nArgs != 1) YError("sum requires exactly one argument");
sp->ops->FormOperand(sp, &op);
promoteID= op.ops->promoteID;
if (promoteID>T_COMPLEX) YError("sum requires numeric argument");
array= Force1D(&op);
if (!array) { /* scalars are trivial */
PopTo(sp-1);
return;
}
RFsum(array, 0);
/* sum range function may change data type */
PopToX(sp-2, sp->value.db->ops->promoteID);
Drop(1);
}
/* ----- avg ----- */
void Y_avg(int nArgs)
{
Operand op;
Array *array;
int promoteID;
if (nArgs != 1) YError("avg requires exactly one argument");
sp->ops->FormOperand(sp, &op);
promoteID= op.ops->promoteID;
if (promoteID>T_COMPLEX) YError("avg requires numeric argument");
array= Force1D(&op);
if (!array) { /* scalars are trivial */
PopTo(sp-1);
return;
}
RFavg(array, 0);
/* avg range function may change data type */
PopToX(sp-2, sp->value.db->ops->promoteID);
Drop(1);
}
/*--------------------------------------------------------------------------*/
extern VMaction True, Not;
static void AllofWorker(VMaction *TrueOrNot, int trueIfFinishes)
{
Operand op;
int *src;
long i;
if (sp->ops==&referenceSym) ReplaceRef(sp);
TrueOrNot(); /* converts top of stack to 0-or-1 int array */
sp->ops->FormOperand(sp, &op);
src= op.value;
for (i=0 ; i<op.type.number ; i++) if (src[i]) break;
Drop(2);
PushIntValue(trueIfFinishes? i>=op.type.number : i<op.type.number);
}
/* ----- allof ----- */
void Y_allof(int nArgs)
{
if (nArgs != 1) YError("allof requires exactly one argument");
AllofWorker(&Not, 1);
}
/* ----- anyof ----- */
void Y_anyof(int nArgs)
{
if (nArgs != 1) YError("anyof requires exactly one argument");
AllofWorker(&True, 0);
}
/* ----- noneof ----- */
void Y_noneof(int nArgs)
{
if (nArgs != 1) YError("noneof requires exactly one argument");
AllofWorker(&True, 1);
}
/* ----- nallof ----- */
void Y_nallof(int nArgs)
{
if (nArgs != 1) YError("nallof requires exactly one argument");
AllofWorker(&Not, 0);
}
/* ----- where ----- */
void Y_where(int nArgs)
{
Operand op;
int *src;
long i, n;
if (nArgs!=1) YError("where takes exactly one argument");
if (sp->ops==&referenceSym) ReplaceRef(sp);
True(); /* converts top of stack to 0-or-1 int array */
sp->ops->FormOperand(sp, &op);
src= op.value;
/* first pass counts number of non-zero points */
n= 0;
for (i=0 ; i<op.type.number ; i++) if (src[i]) n++;
if (n && op.type.dims) {
long j;
Array *array;
long origin= 1L;
Dimension *dims= tmpDims;
tmpDims= 0;
FreeDimension(dims);
tmpDims= NewDimension(n, 1L, (Dimension *)0);
array= PushDataBlock(NewArray(&longStruct, tmpDims));
dims= op.type.dims;
if (dims) {
while (dims->next) dims= dims->next;
origin= yForceOrigin? 1L : dims->origin;
} else {
origin= 1L;
}
j= 0;
for (i=0 ; i<op.type.number ; i++)
if (src[i]) array->value.l[j++]= i+origin;
} else if (n) {
/* Return scalar index for scalar input. This provides maximum
performance when used in conjunction with merge (std1.c). */
PushLongValue(1L);
} else {
/* Return R_NULLER index range. This prevents bogus results if
the caller should use the result of where to extract a subset
of an array without checking whether anything was returned. */
PushDataBlock(NewRange(0L, 0L, 1L, R_NULLER));
}
PopTo(sp-2);
Drop(1);
}
/*--------------------------------------------------------------------------*/
/* ARGSUSED */
void Y_get_cwd(int nArgs)
{
Array *result= PushDataBlock(NewArray(&stringStruct, (Dimension *)0));
result->value.q[0]= p_strcpy(yCWD);
}
/* ARGSUSED */
void Y_get_home(int nArgs)
{
Array *result= PushDataBlock(NewArray(&stringStruct, (Dimension *)0));
result->value.q[0]= p_strcpy(yHOME);
}
void Y_cd(int nArgs)
{
char *q;
char *name;
int notOK;
int amSubroutine= CalledAsSubroutine();
if (nArgs!=1) YError("cd function takes exactly one argument");
q= YGetString(sp);
if (!q) YError("argument to cd must be a non-nil scalar string");
name= YExpandName(q);
notOK= YSetCWD(name);
p_free(name);
if (notOK) {
if (amSubroutine) YError("cd failed -- no such directory");
PushDataBlock(Ref(&nilDB));
} else if (!amSubroutine) {
Y_get_cwd(nArgs);
}
}
/* Use p_free to get rid of return value from Ygetenv (wraps getenv). */
char *Ygetenv(const char *name)
{
return p_strcpy(p_getenv(name));
}
void Y_get_env(int nArgs)
{
Array *result;
char *q;
if (nArgs!=1) YError("getenv function takes exactly one argument");
q= YGetString(sp);
result= PushDataBlock(NewArray(&stringStruct, (Dimension *)0));
if (q) result->value.q[0]= Ygetenv(q);
}
int ym_argc= 0;
char **ym_argv= 0;
/* ARGSUSED */
void Y_get_argv(int nArgs)
{
Array *result;
Dimension *dims= tmpDims;
tmpDims= 0;
FreeDimension(dims);
if (ym_argc>0) tmpDims= NewDimension((long)ym_argc, 1L, (Dimension *)0);
result= PushDataBlock(NewArray(&stringStruct, tmpDims));
if (ym_argc>0) {
int i;
for (i=0 ; i<ym_argc ; i++) result->value.q[i]= p_strcpy(ym_argv[i]);
}
}
/*--------------------------------------------------------------------------*/
/* The OriginStatus stores yForceOrigin -- when it is destroyed, this is
automatically copied back to the yForceOrigin global variable. */
typedef struct OriginStatus OriginStatus;
struct OriginStatus {
int references; /* reference counter */
Operations *ops; /* virtual function table */
int force;
};
extern OriginStatus *NewOrg(int force);
extern void FreeOrg(void *ob); /* ******* Use Unref(bm) ******* */
extern PromoteOp PromXX;
extern UnaryOp ToAnyX, NegateX, ComplementX, NotX, TrueX;
extern BinaryOp AddX, SubtractX, MultiplyX, DivideX, ModuloX, PowerX;
extern BinaryOp EqualX, NotEqualX, GreaterX, GreaterEQX;
extern BinaryOp ShiftLX, ShiftRX, OrX, AndX, XorX;
extern BinaryOp AssignX, MatMultX;
extern UnaryOp EvalX, SetupX, PrintX;
extern MemberOp GetMemberX;
static UnaryOp PrintOB;
Operations orgsOps = {
&FreeOrg, T_OPAQUE, 0, T_STRING, "origin_status",
{&PromXX, &PromXX, &PromXX, &PromXX, &PromXX, &PromXX, &PromXX, &PromXX},
&ToAnyX, &ToAnyX, &ToAnyX, &ToAnyX, &ToAnyX, &ToAnyX, &ToAnyX,
&NegateX, &ComplementX, &NotX, &TrueX,
&AddX, &SubtractX, &MultiplyX, &DivideX, &ModuloX, &PowerX,
&EqualX, &NotEqualX, &GreaterX, &GreaterEQX,
&ShiftLX, &ShiftRX, &OrX, &AndX, &XorX,
&AssignX, &EvalX, &SetupX, &GetMemberX, &MatMultX, &PrintOB
};
static MemryBlock orgBlock= {0, 0, sizeof(OriginStatus),
16*sizeof(OriginStatus)};
void Y_use_origins(int nArgs)
{
int nf;
if (nArgs!=1) YError("use_origins takes exactly one argument");
nf= (int)YGetInteger(sp);
PushDataBlock(NewOrg(yForceOrigin));
yForceOrigin= !nf;
}
OriginStatus *NewOrg(int force)
{
OriginStatus *ob= NextUnit(&orgBlock);
ob->references= 0;
ob->ops= &orgsOps;
ob->force= force;
return ob;
}
void FreeOrg(void *ob)
{
OriginStatus *oblk= ob;
yForceOrigin= oblk->force;
FreeUnit(&orgBlock, ob);
}
static void PrintOB(Operand *op)
{
OriginStatus *ob= op->value;
char line[80];
sprintf(line, "origin_status: index origins %s",
ob->force? "force" : "default");
ForceNewline();
PrintFunc(line);
ForceNewline();
}
/*--------------------------------------------------------------------------*/
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