Remove all files, redirect to GitHub.HEADmaster

1 files changed, 0 insertions, 2080 deletions

diff --git a/tests/examplefiles/example.c b/tests/examplefiles/example.c
deleted file mode 100644
index 7bf70149..00000000
--- a/tests/examplefiles/example.c
+++ /dev/null
@@ -1,2080 +0,0 @@
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include "codegen.h"
-#include "symboltable.h"
-#include "stringbuffer.h"
-
-extern void yyerror(char* msg);
-
-static stringBuffer* staticVariableBuffer;
-static stringBuffer* classInitBuffer;
-static stringBuffer* currentMethodBuffer;
-static stringBuffer* finishedMethodsBuffer;
-static stringBuffer* mainBuffer;
-
-static int currentMethodBufferIndex;
-static int currentMethodStackSize;
-static int currentMethodStackSizeMax;
-static int currentMethodNumberOfLocals;
-
-static int classInitBufferIndex;
-static int classInitStackSize;
-static int classInitStackSizeMax;
-
-static int labelCounter = 0;
-static int global       = 1;
-
-char tempString[MAX_LENGTH_OF_COMMAND];
-
-extern char* className;        /* from minako-syntax.y */
-
-/* forward declarations */
-static void increaseStackby(int stackdiff);
-char convertType(int type);
-
-void codegenInit() {
-	staticVariableBuffer  = newStringBuffer();
-	classInitBuffer       = newStringBuffer();
-	currentMethodBuffer   = 0;
-	finishedMethodsBuffer = newStringBuffer();
-	mainBuffer            = newStringBuffer();
-
-	stringBufferAppend(mainBuffer, "; ------- Header --------------------------------------------"); 
-	sprintf(tempString, ".class  public synchronized %s", className);
-	stringBufferAppend(mainBuffer, tempString);
-	stringBufferAppend(mainBuffer, ".super  java/lang/Object");
-	stringBufferAppend(mainBuffer, "; -----------------------------------------------------------");
-	stringBufferAppend(mainBuffer, "");
-	
-	stringBufferAppend(finishedMethodsBuffer, "; ------- Constructor ---------------------------------------");
-	stringBufferAppend(finishedMethodsBuffer, ".method public <init>()V");
-	stringBufferAppend(finishedMethodsBuffer, "\t.limit stack 1");
-	stringBufferAppend(finishedMethodsBuffer, "\t.limit locals 1");
-	stringBufferAppend(finishedMethodsBuffer, "\taload_0");
-	stringBufferAppend(finishedMethodsBuffer, "\tinvokenonvirtual java/lang/Object/<init>()V");
-	stringBufferAppend(finishedMethodsBuffer, "\treturn");
-	stringBufferAppend(finishedMethodsBuffer, ".end method");
-	stringBufferAppend(finishedMethodsBuffer, "; -----------------------------------------------------------");
-	stringBufferAppend(finishedMethodsBuffer, "");
-
-	stringBufferAppend(staticVariableBuffer, "; ------- Class Variables -----------------------------------");
-
-	stringBufferAppend(classInitBuffer, "; ------- Class Initializer ---------------------------------");
-	stringBufferAppend(classInitBuffer, ".method static <clinit>()V");
-	classInitBufferIndex = classInitBuffer->numberOfNextElement;
-	stringBufferAppend(classInitBuffer, "\t.limit locals 0");
-
-}
-
-void codegenAppendCommand(char* cmd, int stackdiff) {
-	char tempString[MAX_LENGTH_OF_COMMAND];
-	sprintf(tempString, "\t%s", cmd);
-	if (global) stringBufferAppend(classInitBuffer, tempString);
-	else stringBufferAppend(currentMethodBuffer, tempString);
-	increaseStackby(stackdiff);
-}
-
-void codegenInsertCommand(int address, char* cmd, int stackdiff) {
-	char tempString[MAX_LENGTH_OF_COMMAND];
-	sprintf(tempString, "\t%s", cmd);
-	if (global) stringBufferInsert(classInitBuffer, address, tempString);
-	else stringBufferInsert(currentMethodBuffer, address, tempString);
-	increaseStackby(stackdiff);
-}
-
-void codegenAppendLabel(int label) {
-	char tempString[MAX_LENGTH_OF_COMMAND];
-	sprintf(tempString, "Label%d:", label);
-	if (global) stringBufferAppend(classInitBuffer, tempString);
-	else stringBufferAppend(currentMethodBuffer, tempString);
-}
-
-void codegenAddVariable(char* name, int type) {
-	/*fprintf(stderr, "add variable %s(%d) global=%d ", name, convertType(type), global);*/
-	if (global) {
-		if (type == TYPE_INT) sprintf(tempString, ".field static %s %c", name, 'I');
-		else if (type == TYPE_FLOAT) sprintf(tempString, ".field static %s %c", name, 'F');
-		else if (type == TYPE_BOOLEAN) sprintf(tempString, ".field static %s %c", name, 'Z');
-		else yyerror("compiler-intern error in codegenAddGlobalVariable().\n");
-		stringBufferAppend(staticVariableBuffer, tempString);
-	}
-	else {
-		currentMethodNumberOfLocals++;
-	}
-}
-
-int codegenGetNextLabel() {
-	return labelCounter++;
-}
-
-int codegenGetCurrentAddress() {
-	if (global) return classInitBuffer->numberOfNextElement;
-	else return currentMethodBuffer->numberOfNextElement;
-}
-
-void codegenEnterFunction(symtabEntry* entry) {
-	currentMethodBuffer = newStringBuffer();
-	currentMethodStackSize = 0;
-	currentMethodStackSizeMax = 0;
-	labelCounter = 1;
-	global = 0;
-	
-	if (strcmp(entry->name, "main") == 0) {
-		if (entry->idtype != TYPE_VOID) yyerror("main has to be void.\n");
-		currentMethodNumberOfLocals = 1;
-		symtabInsert(strdup("#main-param#"), TYPE_VOID, CLASS_FUNC);
-		stringBufferAppend(currentMethodBuffer, "; ------- Methode ---- void main() --------------------------");
-		stringBufferAppend(currentMethodBuffer, ".method public static main([Ljava/lang/String;)V");
-	}
-	else {
-		int i;
-		currentMethodNumberOfLocals = entry->paramIndex;
-		stringBufferAppend(currentMethodBuffer, "; ------- Methode -------------------------------------------");
-		sprintf(tempString, ".method public static %s(", entry->name);
-		for (i=entry->paramIndex-1; i>=0; i--) {
-			int type = entry->params[i]->idtype;
-			tempString[strlen(tempString)+1] = 0;
-			tempString[strlen(tempString)] = convertType(type);
-		}
-		tempString[strlen(tempString)+2] = 0;
-		tempString[strlen(tempString)+1] = convertType(entry->idtype);
-		tempString[strlen(tempString)]   = ')';
-		stringBufferAppend(currentMethodBuffer, tempString);
-	}
-	currentMethodBufferIndex = currentMethodBuffer->numberOfNextElement;
-}
-
-void codegenLeaveFunction() {
-	global = 1;
-	sprintf(tempString, "\t.limit locals %d", currentMethodNumberOfLocals);
-	stringBufferInsert(currentMethodBuffer, currentMethodBufferIndex, tempString);
-	sprintf(tempString, "\t.limit stack %d", currentMethodStackSizeMax);
-	stringBufferInsert(currentMethodBuffer, currentMethodBufferIndex, tempString);
-	stringBufferAppend(currentMethodBuffer, "\treturn");
-	stringBufferAppend(currentMethodBuffer, ".end method");
-	stringBufferAppend(currentMethodBuffer, "; -----------------------------------------------------------");
-	stringBufferAppend(currentMethodBuffer, "");
-
-	stringBufferConcatenate(finishedMethodsBuffer, currentMethodBuffer);
-}
-
-
-
-void codegenFinishCode() {
-	stringBufferAppend(staticVariableBuffer, "; -----------------------------------------------------------");
-	stringBufferAppend(staticVariableBuffer, "");
-
-	sprintf(tempString, "\t.limit stack %d", classInitStackSizeMax);
-	stringBufferInsert(classInitBuffer, classInitBufferIndex, tempString);
-	stringBufferAppend(classInitBuffer, "\treturn");
-	stringBufferAppend(classInitBuffer, ".end method");
-	stringBufferAppend(classInitBuffer, "; -----------------------------------------------------------");
-	
-	stringBufferConcatenate(mainBuffer, staticVariableBuffer);
-	stringBufferConcatenate(mainBuffer, finishedMethodsBuffer);
-	stringBufferConcatenate(mainBuffer, classInitBuffer);
-
-	stringBufferPrint(mainBuffer);
-}
-
-static void increaseStackby(int stackdiff) {
-	if (global) {
-		classInitStackSize += stackdiff;
-		if (classInitStackSize > classInitStackSizeMax) classInitStackSizeMax = classInitStackSize;
-	}
-	else {
-		currentMethodStackSize += stackdiff;
-		if (currentMethodStackSize > currentMethodStackSizeMax) currentMethodStackSizeMax = currentMethodStackSize;
-	}
-}
-
-char convertType(int type) {
-	switch(type) {
-		case TYPE_VOID:    return 'V';
-		case TYPE_INT:     return 'I';
-		case TYPE_FLOAT:   return 'F';
-		case TYPE_BOOLEAN: return 'Z';
-		default : yyerror("compiler-intern error in convertType().\n");
-	}
-	return 0; /* to avoid compiler-warning */
-}
-
-
-//#include <stdlib.h>
-//#include <stdio.h>
-
-int main() {
-	int a = 12, b = 44;
-	while (a != b) {
-		if (a > b)
-			a -= b;
-		else
-			b -= a;
-	}
-	printf("%d\n%d", a, 0X0);\
-}
-
-
-/**********************************************************************
-
-  array.c -
-
-  $Author: murphy $
-  $Date: 2005-11-05 04:33:55 +0100 (Sa, 05 Nov 2005) $
-  created at: Fri Aug  6 09:46:12 JST 1993
-
-  Copyright (C) 1993-2003 Yukihiro Matsumoto
-  Copyright (C) 2000  Network Applied Communication Laboratory, Inc.
-  Copyright (C) 2000  Information-technology Promotion Agency, Japan
-
-**********************************************************************/
-
-#include "ruby.h"
-#include "util.h"
-#include "st.h"
-#include "node.h"
-
-VALUE rb_cArray, rb_cValues;
-
-static ID id_cmp;
-
-#define ARY_DEFAULT_SIZE 16
-
-
-void
-rb_mem_clear(mem, size)
-    register VALUE *mem;
-    register long size;
-{
-    while (size--) {
-	*mem++ = Qnil;
-    }
-}
-
-static inline void
-memfill(mem, size, val)
-    register VALUE *mem;
-    register long size;
-    register VALUE val;
-{
-    while (size--) {
-	*mem++ = val;
-    }
-}
-
-#define ARY_TMPLOCK  FL_USER1
-
-static inline void
-rb_ary_modify_check(ary)
-    VALUE ary;
-{
-    if (OBJ_FROZEN(ary)) rb_error_frozen("array");
-    if (FL_TEST(ary, ARY_TMPLOCK))
-	rb_raise(rb_eRuntimeError, "can't modify array during iteration");
-    if (!OBJ_TAINTED(ary) && rb_safe_level() >= 4)
-	rb_raise(rb_eSecurityError, "Insecure: can't modify array");
-}
-
-static void
-rb_ary_modify(ary)
-    VALUE ary;
-{
-    VALUE *ptr;
-
-    rb_ary_modify_check(ary);
-    if (FL_TEST(ary, ELTS_SHARED)) {
-	ptr = ALLOC_N(VALUE, RARRAY(ary)->len);
-	FL_UNSET(ary, ELTS_SHARED);
-	RARRAY(ary)->aux.capa = RARRAY(ary)->len;
-	MEMCPY(ptr, RARRAY(ary)->ptr, VALUE, RARRAY(ary)->len);
-	RARRAY(ary)->ptr = ptr;
-    }
-}
-
-VALUE
-rb_ary_freeze(ary)
-    VALUE ary;
-{
-    return rb_obj_freeze(ary);
-}
-
-/*
- *  call-seq:
- *     array.frozen?  -> true or false
- *
- *  Return <code>true</code> if this array is frozen (or temporarily frozen
- *  while being sorted).
- */
-
-static VALUE
-rb_ary_frozen_p(ary)
-    VALUE ary;
-{
-    if (OBJ_FROZEN(ary)) return Qtrue;
-    if (FL_TEST(ary, ARY_TMPLOCK)) return Qtrue;
-    return Qfalse;
-}
-
-static VALUE ary_alloc(VALUE);
-static VALUE
-ary_alloc(klass)
-    VALUE klass;
-{
-    NEWOBJ(ary, struct RArray);
-    OBJSETUP(ary, klass, T_ARRAY);
-
-    ary->len = 0;
-    ary->ptr = 0;
-    ary->aux.capa = 0;
-
-    return (VALUE)ary;
-}
-
-static VALUE
-ary_new(klass, len)
-    VALUE klass;
-    long len;
-{
-    VALUE ary;
-
-    if (len < 0) {
-	rb_raise(rb_eArgError, "negative array size (or size too big)");
-    }
-    if (len > 0 && len * sizeof(VALUE) <= len) {
-	rb_raise(rb_eArgError, "array size too big");
-    }
-    if (len == 0) len++;
-    
-    ary = ary_alloc(klass);
-    RARRAY(ary)->ptr = ALLOC_N(VALUE, len);
-    RARRAY(ary)->aux.capa = len;
-
-    return ary;
-}
-
-VALUE
-rb_ary_new2(len)
-    long len;
-{
-    return ary_new(rb_cArray, len);
-}
-
-
-VALUE
-rb_ary_new()
-{
-    return rb_ary_new2(ARY_DEFAULT_SIZE);
-}
-
-#ifdef HAVE_STDARG_PROTOTYPES
-#include <stdarg.h>
-#define va_init_list(a,b) va_start(a,b)
-#else
-#include <varargs.h>
-#define va_init_list(a,b) va_start(a)
-#endif
-
-VALUE
-#ifdef HAVE_STDARG_PROTOTYPES
-rb_ary_new3(long n, ...)
-#else
-rb_ary_new3(n, va_alist)
-    long n;
-    va_dcl
-#endif
-{
-    va_list ar;
-    VALUE ary;
-    long i;
-
-    ary = rb_ary_new2(n);
-
-    va_init_list(ar, n);
-    for (i=0; i<n; i++) {
-	RARRAY(ary)->ptr[i] = va_arg(ar, VALUE);
-    }
-    va_end(ar);
-
-    RARRAY(ary)->len = n;
-    return ary;
-}
-
-VALUE
-rb_ary_new4(n, elts)
-    long n;
-    const VALUE *elts;
-{
-    VALUE ary;
-
-    ary = rb_ary_new2(n);
-    if (n > 0 && elts) {
-	MEMCPY(RARRAY(ary)->ptr, elts, VALUE, n);
-    }
-    RARRAY(ary)->len = n;
-
-    return ary;
-}
-
-VALUE
-#ifdef HAVE_STDARG_PROTOTYPES
-rb_values_new(long n, ...)
-#else
-rb_values_new(n, va_alist)
-    long n;
-    va_dcl
-#endif
-{
-    va_list ar;
-    VALUE val;
-    long i;
-
-    val = ary_new(rb_cValues, n);
-    va_init_list(ar, n);
-    for (i=0; i<n; i++) {
-	RARRAY(val)->ptr[i] = va_arg(ar, VALUE);
-    }
-    va_end(ar);
-    RARRAY(val)->len = n;
-
-    return val;
-}
-
-VALUE
-rb_values_new2(n, elts)
-    long n;
-    const VALUE *elts;
-{
-    VALUE val;
-
-    val = ary_new(rb_cValues, n);
-    if (n > 0 && elts) {
-	RARRAY(val)->len = n;
-	MEMCPY(RARRAY(val)->ptr, elts, VALUE, n);
-    }
-
-    return val;
-}
-
-static VALUE
-ary_make_shared(ary)
-    VALUE ary;
-{
-    if (!FL_TEST(ary, ELTS_SHARED)) {
-	NEWOBJ(shared, struct RArray);
-	OBJSETUP(shared, rb_cArray, T_ARRAY);
-
-	shared->len = RARRAY(ary)->len;
-	shared->ptr = RARRAY(ary)->ptr;
-	shared->aux.capa = RARRAY(ary)->aux.capa;
-	RARRAY(ary)->aux.shared = (VALUE)shared;
-	FL_SET(ary, ELTS_SHARED);
-	OBJ_FREEZE(shared);
-	return (VALUE)shared;
-    }
-    else {
-	return RARRAY(ary)->aux.shared;
-    }
-}
-
-static VALUE
-ary_shared_array(klass, ary)
-    VALUE klass, ary;
-{
-    VALUE val = ary_alloc(klass);
-
-    ary_make_shared(ary);
-    RARRAY(val)->ptr = RARRAY(ary)->ptr;
-    RARRAY(val)->len = RARRAY(ary)->len;
-    RARRAY(val)->aux.shared = RARRAY(ary)->aux.shared;
-    FL_SET(val, ELTS_SHARED);
-    return val;
-}
-
-VALUE
-rb_values_from_ary(ary)
-    VALUE ary;
-{
-    return ary_shared_array(rb_cValues, ary);
-}
-
-VALUE
-rb_ary_from_values(val)
-    VALUE val;
-{
-    return ary_shared_array(rb_cArray, val);
-}
-
-VALUE
-rb_assoc_new(car, cdr)
-    VALUE car, cdr;
-{
-    return rb_values_new(2, car, cdr);
-}
-
-static VALUE
-to_ary(ary)
-    VALUE ary;
-{
-    return rb_convert_type(ary, T_ARRAY, "Array", "to_ary");
-}
-
-static VALUE
-to_a(ary)
-    VALUE ary;
-{
-    return rb_convert_type(ary, T_ARRAY, "Array", "to_a");
-}
-
-VALUE
-rb_check_array_type(ary)
-    VALUE ary;
-{
-    return rb_check_convert_type(ary, T_ARRAY, "Array", "to_ary");
-}
-
-static VALUE rb_ary_replace _((VALUE, VALUE));
-
-/*
- *  call-seq:
- *     Array.new(size=0, obj=nil)
- *     Array.new(array)
- *     Array.new(size) {|index| block }
- *
- *  Returns a new array. In the first form, the new array is
- *  empty. In the second it is created with _size_ copies of _obj_
- *  (that is, _size_ references to the same
- *  _obj_). The third form creates a copy of the array
- *  passed as a parameter (the array is generated by calling
- *  to_ary  on the parameter). In the last form, an array
- *  of the given size is created. Each element in this array is
- *  calculated by passing the element's index to the given block and
- *  storing the return value.
- *
- *     Array.new
- *     Array.new(2)
- *     Array.new(5, "A")
- * 
- *     # only one copy of the object is created
- *     a = Array.new(2, Hash.new)
- *     a[0]['cat'] = 'feline'
- *     a
- *     a[1]['cat'] = 'Felix'
- *     a
- * 
- *     # here multiple copies are created
- *     a = Array.new(2) { Hash.new }
- *     a[0]['cat'] = 'feline'
- *     a
- * 
- *     squares = Array.new(5) {|i| i*i}
- *     squares
- * 
- *     copy = Array.new(squares)
- */
-
-static VALUE
-rb_ary_initialize(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    long len;
-    VALUE size, val;
-
-    if (rb_scan_args(argc, argv, "02", &size, &val) == 0) {
-	RARRAY(ary)->len = 0;
-	if (rb_block_given_p()) {
-	    rb_warning("given block not used");
-	}
-	return ary;
-    }
-
-    if (argc == 1 && !FIXNUM_P(size)) {
-	val = rb_check_array_type(size);
-	if (!NIL_P(val)) {
-	    rb_ary_replace(ary, val);
-	    return ary;
-	}
-    }
-
-    len = NUM2LONG(size);
-    if (len < 0) {
-	rb_raise(rb_eArgError, "negative array size");
-    }
-    if (len > 0 && len * (long)sizeof(VALUE) <= len) {
-	rb_raise(rb_eArgError, "array size too big");
-    }
-    rb_ary_modify(ary);
-    if (len > RARRAY(ary)->aux.capa) {
-	REALLOC_N(RARRAY(ary)->ptr, VALUE, len);
-	RARRAY(ary)->aux.capa = len;
-    }
-    if (rb_block_given_p()) {
-	long i;
-
-	if (argc == 2) {
-	    rb_warn("block supersedes default value argument");
-	}
-	for (i=0; i<len; i++) {
-	    rb_ary_store(ary, i, rb_yield(LONG2NUM(i)));
-	    RARRAY(ary)->len = i + 1;
-	}
-    }
-    else {
-	memfill(RARRAY(ary)->ptr, len, val);
-	RARRAY(ary)->len = len;
-    }
-
-    return ary;
-}
-
-
-/* 
-* Returns a new array populated with the given objects. 
-*
-*   Array.[]( 1, 'a', /^A/ )
-*   Array[ 1, 'a', /^A/ ]
-*   [ 1, 'a', /^A/ ]
-*/
-
-static VALUE
-rb_ary_s_create(argc, argv, klass)
-    int argc;
-    VALUE *argv;
-    VALUE klass;
-{
-    VALUE ary = ary_alloc(klass);
-
-    if (argc > 0) {
-	RARRAY(ary)->ptr = ALLOC_N(VALUE, argc);
-	MEMCPY(RARRAY(ary)->ptr, argv, VALUE, argc);
-    }
-    RARRAY(ary)->len = RARRAY(ary)->aux.capa = argc;
-
-    return ary;
-}
-
-void
-rb_ary_store(ary, idx, val)
-    VALUE ary;
-    long idx;
-    VALUE val;
-{
-    if (idx < 0) {
-	idx += RARRAY(ary)->len;
-	if (idx < 0) {
-	    rb_raise(rb_eIndexError, "index %ld out of array",
-		    idx - RARRAY(ary)->len);
-	}
-    }
-
-    rb_ary_modify(ary);
-    if (idx >= RARRAY(ary)->aux.capa) {
-	long new_capa = RARRAY(ary)->aux.capa / 2;
-
-	if (new_capa < ARY_DEFAULT_SIZE) {
-	    new_capa = ARY_DEFAULT_SIZE;
-	}
-	new_capa += idx;
-	if (new_capa * (long)sizeof(VALUE) <= new_capa) {
-	    rb_raise(rb_eArgError, "index too big");
-	}
-	REALLOC_N(RARRAY(ary)->ptr, VALUE, new_capa);
-	RARRAY(ary)->aux.capa = new_capa;
-    }
-    if (idx > RARRAY(ary)->len) {
-	rb_mem_clear(RARRAY(ary)->ptr + RARRAY(ary)->len,
-		     idx-RARRAY(ary)->len + 1);
-    }
-
-    if (idx >= RARRAY(ary)->len) {
-	RARRAY(ary)->len = idx + 1;
-    }
-    RARRAY(ary)->ptr[idx] = val;
-}
-
-static VALUE
-ary_shared_first(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    VALUE nv, result;
-    long n;
-
-    rb_scan_args(argc, argv, "1", &nv);
-    n = NUM2LONG(nv);
-    if (n > RARRAY(ary)->len) {
-	n = RARRAY(ary)->len;
-    }
-    else if (n < 0) {
-	rb_raise(rb_eArgError, "negative array size");
-    }
-    result = ary_shared_array(rb_cArray, ary);
-    RARRAY(result)->len = n;
-    return result;
-}
-
-static VALUE
-ary_shared_last(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    VALUE result = ary_shared_first(argc, argv, ary);
-
-    RARRAY(result)->ptr += RARRAY(ary)->len - RARRAY(result)->len;
-    return result;
-}
-
-/*
- *  call-seq:
- *     array << obj            -> array
- *  
- *  Append---Pushes the given object on to the end of this array. This
- *  expression returns the array itself, so several appends
- *  may be chained together.
- *
- *     [ 1, 2 ] << "c" << "d" << [ 3, 4 ]
- *             #=>  [ 1, 2, "c", "d", [ 3, 4 ] ]
- *
- */
-
-VALUE
-rb_ary_push(ary, item)
-    VALUE ary;
-    VALUE item;
-{
-    rb_ary_store(ary, RARRAY(ary)->len, item);
-    return ary;
-}
-
-/* 
- *  call-seq:
- *     array.push(obj, ... )   -> array
- *  
- *  Append---Pushes the given object(s) on to the end of this array. This
- *  expression returns the array itself, so several appends
- *  may be chained together.
- *
- *     a = [ "a", "b", "c" ]
- *     a.push("d", "e", "f")  
- *             #=> ["a", "b", "c", "d", "e", "f"]
- */
-
-static VALUE
-rb_ary_push_m(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    while (argc--) {
-	rb_ary_push(ary, *argv++);
-    }
-    return ary;
-}
-
-VALUE
-rb_ary_pop(ary)
-    VALUE ary;
-{
-    rb_ary_modify_check(ary);
-    if (RARRAY(ary)->len == 0) return Qnil;
-    if (!FL_TEST(ary, ELTS_SHARED) &&
-	    RARRAY(ary)->len * 2 < RARRAY(ary)->aux.capa &&
-	    RARRAY(ary)->aux.capa > ARY_DEFAULT_SIZE) {
-	RARRAY(ary)->aux.capa = RARRAY(ary)->len * 2;
-	REALLOC_N(RARRAY(ary)->ptr, VALUE, RARRAY(ary)->aux.capa);
-    }
-    return RARRAY(ary)->ptr[--RARRAY(ary)->len];
-}
-
-/*
- *  call-seq:
- *     array.pop  -> obj or nil
- *  
- *  Removes the last element from <i>self</i> and returns it, or
- *  <code>nil</code> if the array is empty.
- *     
- *     a = [ "a", "b", "c", "d" ]
- *     a.pop     #=> "d"
- *     a.pop(2)  #=> ["b", "c"]
- *     a         #=> ["a"]
- */
-
-static VALUE
-rb_ary_pop_m(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    VALUE result;
-
-    if (argc == 0) {
-	return rb_ary_pop(ary);
-    }
-
-    rb_ary_modify_check(ary);
-
-    result = ary_shared_last(argc, argv, ary);
-    RARRAY(ary)->len -= RARRAY(result)->len;
-    return result;
-}
-
-VALUE
-rb_ary_shift(ary)
-    VALUE ary;
-{
-    VALUE top;
-
-    rb_ary_modify_check(ary);
-    if (RARRAY(ary)->len == 0) return Qnil;
-    top = RARRAY(ary)->ptr[0];
-    ary_make_shared(ary);
-    RARRAY(ary)->ptr++;		/* shift ptr */
-    RARRAY(ary)->len--;
-
-    return top;
-}
-
-/*
- *  call-seq:
- *     array.shift   ->   obj or nil
- *  
- *  Returns the first element of <i>self</i> and removes it (shifting all
- *  other elements down by one). Returns <code>nil</code> if the array
- *  is empty.
- *     
- *     args = [ "-m", "-q", "filename" ]
- *     args.shift     #=> "-m"
- *     args           #=> ["-q", "filename"]
- *
- *     args = [ "-m", "-q", "filename" ]
- *     args.shift(2)  #=> ["-m", "-q"]
- *     args           #=> ["filename"]
- */
-
-static VALUE
-rb_ary_shift_m(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    VALUE result;
-    long n;
-
-    if (argc == 0) {
-	return rb_ary_shift(ary);
-    }
-
-    rb_ary_modify_check(ary);
-
-    result = ary_shared_first(argc, argv, ary);
-    n = RARRAY(result)->len;
-    RARRAY(ary)->ptr += n;
-    RARRAY(ary)->len -= n;
-
-    return result;
-}
-
-VALUE
-rb_ary_unshift(ary, item)
-    VALUE ary, item;
-{
-    rb_ary_modify(ary);
-    if (RARRAY(ary)->len == RARRAY(ary)->aux.capa) {
-	long capa_inc = RARRAY(ary)->aux.capa / 2;
-	if (capa_inc < ARY_DEFAULT_SIZE) {
-	    capa_inc = ARY_DEFAULT_SIZE;
-	}
-	RARRAY(ary)->aux.capa += capa_inc;
-	REALLOC_N(RARRAY(ary)->ptr, VALUE, RARRAY(ary)->aux.capa);
-    }
-
-    /* sliding items */
-    MEMMOVE(RARRAY(ary)->ptr + 1, RARRAY(ary)->ptr, VALUE, RARRAY(ary)->len);
-
-    RARRAY(ary)->len++;
-    RARRAY(ary)->ptr[0] = item;
-
-    return ary;
-}
-
-/*
- *  call-seq:
- *     array.unshift(obj, ...)  -> array
- *  
- *  Prepends objects to the front of <i>array</i>.
- *  other elements up one.
- *     
- *     a = [ "b", "c", "d" ]
- *     a.unshift("a")   #=> ["a", "b", "c", "d"]
- *     a.unshift(1, 2)  #=> [ 1, 2, "a", "b", "c", "d"]
- */
-
-static VALUE
-rb_ary_unshift_m(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    long len = RARRAY(ary)->len;
-
-    if (argc == 0) return ary;
-
-    /* make rooms by setting the last item */
-    rb_ary_store(ary, len + argc - 1, Qnil);
-
-    /* sliding items */
-    MEMMOVE(RARRAY(ary)->ptr + argc, RARRAY(ary)->ptr, VALUE, len);
-    MEMCPY(RARRAY(ary)->ptr, argv, VALUE, argc);
-    
-    return ary;
-}
-
-/* faster version - use this if you don't need to treat negative offset */
-static inline VALUE
-rb_ary_elt(ary, offset)
-    VALUE ary;
-    long offset;
-{
-    if (RARRAY(ary)->len == 0) return Qnil;
-    if (offset < 0 || RARRAY(ary)->len <= offset) {
-	return Qnil;
-    }
-    return RARRAY(ary)->ptr[offset];
-}
-
-VALUE
-rb_ary_entry(ary, offset)
-    VALUE ary;
-    long offset;
-{
-    if (offset < 0) {
-	offset += RARRAY(ary)->len;
-    }
-    return rb_ary_elt(ary, offset);
-}
-
-static VALUE
-rb_ary_subseq(ary, beg, len)
-    VALUE ary;
-    long beg, len;
-{
-    VALUE klass, ary2, shared;
-    VALUE *ptr;
-
-    if (beg > RARRAY(ary)->len) return Qnil;
-    if (beg < 0 || len < 0) return Qnil;
-
-    if (beg + len > RARRAY(ary)->len) {
-	len = RARRAY(ary)->len - beg;
-	if (len < 0)
-	    len = 0;
-    }
-    klass = rb_obj_class(ary);
-    if (len == 0) return ary_new(klass, 0);
-
-    shared = ary_make_shared(ary);
-    ptr = RARRAY(ary)->ptr;
-    ary2 = ary_alloc(klass);
-    RARRAY(ary2)->ptr = ptr + beg;
-    RARRAY(ary2)->len = len;
-    RARRAY(ary2)->aux.shared = shared;
-    FL_SET(ary2, ELTS_SHARED);
-
-    return ary2;
-}
-
-/* 
- *  call-seq:
- *     array[index]                -> obj      or nil
- *     array[start, length]        -> an_array or nil
- *     array[range]                -> an_array or nil
- *     array.slice(index)          -> obj      or nil
- *     array.slice(start, length)  -> an_array or nil
- *     array.slice(range)          -> an_array or nil
- *
- *  Element Reference---Returns the element at _index_,
- *  or returns a subarray starting at _start_ and
- *  continuing for _length_ elements, or returns a subarray
- *  specified by _range_.
- *  Negative indices count backward from the end of the
- *  array (-1 is the last element). Returns nil if the index
- *  (or starting index) are out of range.
- *
- *     a = [ "a", "b", "c", "d", "e" ]
- *     a[2] +  a[0] + a[1]    #=> "cab"
- *     a[6]                   #=> nil
- *     a[1, 2]                #=> [ "b", "c" ]
- *     a[1..3]                #=> [ "b", "c", "d" ]
- *     a[4..7]                #=> [ "e" ]
- *     a[6..10]               #=> nil
- *     a[-3, 3]               #=> [ "c", "d", "e" ]
- *     # special cases
- *     a[5]                   #=> nil
- *     a[5, 1]                #=> []
- *     a[5..10]               #=> []
- *
- */
-
-VALUE
-rb_ary_aref(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    VALUE arg;
-    long beg, len;
-
-    if (argc == 2) {
-	beg = NUM2LONG(argv[0]);
-	len = NUM2LONG(argv[1]);
-	if (beg < 0) {
-	    beg += RARRAY(ary)->len;
-	}
-	return rb_ary_subseq(ary, beg, len);
-    }
-    if (argc != 1) {
-	rb_scan_args(argc, argv, "11", 0, 0);
-    }
-    arg = argv[0];
-    /* special case - speeding up */
-    if (FIXNUM_P(arg)) {
-	return rb_ary_entry(ary, FIX2LONG(arg));
-    }
-    /* check if idx is Range */
-    switch (rb_range_beg_len(arg, &beg, &len, RARRAY(ary)->len, 0)) {
-      case Qfalse:
-	break;
-      case Qnil:
-	return Qnil;
-      default:
-	return rb_ary_subseq(ary, beg, len);
-    }
-    return rb_ary_entry(ary, NUM2LONG(arg));
-}
-
-/* 
- *  call-seq:
- *     array.at(index)   ->   obj  or nil
- *
- *  Returns the element at _index_. A
- *  negative index counts from the end of _self_.  Returns +nil+
- *  if the index is out of range. See also <code>Array#[]</code>.
- *  (<code>Array#at</code> is slightly faster than <code>Array#[]</code>,
- *  as it does not accept ranges and so on.)
- *
- *     a = [ "a", "b", "c", "d", "e" ]
- *     a.at(0)     #=> "a"
- *     a.at(-1)    #=> "e"
- */
-
-static VALUE
-rb_ary_at(ary, pos)
-    VALUE ary, pos;
-{
-    return rb_ary_entry(ary, NUM2LONG(pos));
-}
-
-/*
- *  call-seq:
- *     array.first     ->   obj or nil
- *     array.first(n)  ->   an_array
- *  
- *  Returns the first element of the array. If the array is empty,
- *  returns <code>nil</code>.
- *     
- *     a = [ "q", "r", "s", "t" ]
- *     a.first     #=> "q"
- *     a.first(2)  #=> ["q", "r"]
- */
-
-static VALUE
-rb_ary_first(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    if (argc == 0) {
-	if (RARRAY(ary)->len == 0) return Qnil;
-	return RARRAY(ary)->ptr[0];
-    }
-    else {
-	return ary_shared_first(argc, argv, ary);
-    }
-}
-
-/*
- *  call-seq:
- *     array.last     ->  obj or nil
- *     array.last(n)  ->  an_array
- *  
- *  Returns the last element(s) of <i>self</i>. If the array is empty,
- *  the first form returns <code>nil</code>.
- *     
- *     a = [ "w", "x", "y", "z" ]
- *     a.last     #=> "z"
- *     a.last(2)  #=> ["y", "z"]
- */
-
-static VALUE
-rb_ary_last(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    if (argc == 0) {
-	if (RARRAY(ary)->len == 0) return Qnil;
-	return RARRAY(ary)->ptr[RARRAY(ary)->len-1];
-    }
-    else {
-	return ary_shared_last(argc, argv, ary);
-    }
-}
-
-/*
- *  call-seq:
- *     array.fetch(index)                    -> obj
- *     array.fetch(index, default )          -> obj
- *     array.fetch(index) {|index| block }   -> obj
- *  
- *  Tries to return the element at position <i>index</i>. If the index
- *  lies outside the array, the first form throws an
- *  <code>IndexError</code> exception, the second form returns
- *  <i>default</i>, and the third form returns the value of invoking
- *  the block, passing in the index. Negative values of <i>index</i>
- *  count from the end of the array.
- *     
- *     a = [ 11, 22, 33, 44 ]
- *     a.fetch(1)               #=> 22
- *     a.fetch(-1)              #=> 44
- *     a.fetch(4, 'cat')        #=> "cat"
- *     a.fetch(4) { |i| i*i }   #=> 16
- */
-
-static VALUE
-rb_ary_fetch(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    VALUE pos, ifnone;
-    long block_given;
-    long idx;
-
-    rb_scan_args(argc, argv, "11", &pos, &ifnone);
-    block_given = rb_block_given_p();
-    if (block_given && argc == 2) {
-	rb_warn("block supersedes default value argument");
-    }
-    idx = NUM2LONG(pos);
-
-    if (idx < 0) {
-	idx +=  RARRAY(ary)->len;
-    }
-    if (idx < 0 || RARRAY(ary)->len <= idx) {
-	if (block_given) return rb_yield(pos);
-	if (argc == 1) {
-	    rb_raise(rb_eIndexError, "index %ld out of array", idx);
-	}
-	return ifnone;
-    }
-    return RARRAY(ary)->ptr[idx];
-}
-
-/*
- *  call-seq:
- *     array.index(obj)           ->  int or nil
- *     array.index {|item| block} ->  int or nil
- *  
- *  Returns the index of the first object in <i>self</i> such that is
- *  <code>==</code> to <i>obj</i>. If a block is given instead of an
- *  argument, returns first object for which <em>block</em> is true.
- *  Returns <code>nil</code> if no match is found.
- *     
- *     a = [ "a", "b", "c" ]
- *     a.index("b")        #=> 1
- *     a.index("z")        #=> nil
- *     a.index{|x|x=="b"}  #=> 1
- */
-
-static VALUE
-rb_ary_index(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    VALUE val;
-    long i;
-
-    if (rb_scan_args(argc, argv, "01", &val) == 0) {
-	for (i=0; i<RARRAY(ary)->len; i++) {
-	    if (RTEST(rb_yield(RARRAY(ary)->ptr[i]))) {
-		return LONG2NUM(i);
-	    }
-	}
-    }
-    else {
-	for (i=0; i<RARRAY(ary)->len; i++) {
-	    if (rb_equal(RARRAY(ary)->ptr[i], val))
-		return LONG2NUM(i);
-	}
-    }
-    return Qnil;
-}
-
-/*
- *  call-seq:
- *     array.rindex(obj)    ->  int or nil
- *  
- *  Returns the index of the last object in <i>array</i>
- *  <code>==</code> to <i>obj</i>. If a block is given instead of an
- *  argument, returns first object for which <em>block</em> is
- *  true. Returns <code>nil</code> if no match is found.
- *     
- *     a = [ "a", "b", "b", "b", "c" ]
- *     a.rindex("b")        #=> 3
- *     a.rindex("z")        #=> nil
- *     a.rindex{|x|x=="b"}  #=> 3
- */
-
-static VALUE
-rb_ary_rindex(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    VALUE val;
-    long i = RARRAY(ary)->len;
-
-    if (rb_scan_args(argc, argv, "01", &val) == 0) {
-	while (i--) {
-	    if (RTEST(rb_yield(RARRAY(ary)->ptr[i])))
-		return LONG2NUM(i);
-	    if (i > RARRAY(ary)->len) {
-		i = RARRAY(ary)->len;
-	    }
-	}
-    }
-    else {
-	while (i--) {
-	    if (rb_equal(RARRAY(ary)->ptr[i], val))
-		return LONG2NUM(i);
-	    if (i > RARRAY(ary)->len) {
-		i = RARRAY(ary)->len;
-	    }
-	}
-    }
-    return Qnil;
-}
-
-VALUE
-rb_ary_to_ary(obj)
-    VALUE obj;
-{
-    if (TYPE(obj) == T_ARRAY) {
-	return obj;
-    }
-    if (rb_respond_to(obj, rb_intern("to_ary"))) {
-	return to_ary(obj);
-    }
-    return rb_ary_new3(1, obj);
-}
-
-static void
-rb_ary_splice(ary, beg, len, rpl)
-    VALUE ary;
-    long beg, len;
-    VALUE rpl;
-{
-    long rlen;
-
-    if (len < 0) rb_raise(rb_eIndexError, "negative length (%ld)", len);
-    if (beg < 0) {
-	beg += RARRAY(ary)->len;
-	if (beg < 0) {
-	    beg -= RARRAY(ary)->len;
-	    rb_raise(rb_eIndexError, "index %ld out of array", beg);
-	}
-    }
-    if (beg + len > RARRAY(ary)->len) {
-	len = RARRAY(ary)->len - beg;
-    }
-
-    if (rpl == Qundef) {
-	rlen = 0;
-    }
-    else {
-	rpl = rb_ary_to_ary(rpl);
-	rlen = RARRAY(rpl)->len;
-    }
-    rb_ary_modify(ary);
-
-    if (beg >= RARRAY(ary)->len) {
-	len = beg + rlen;
-	if (len >= RARRAY(ary)->aux.capa) {
-	    REALLOC_N(RARRAY(ary)->ptr, VALUE, len);
-	    RARRAY(ary)->aux.capa = len;
-	}
-	rb_mem_clear(RARRAY(ary)->ptr + RARRAY(ary)->len, beg - RARRAY(ary)->len);
-	if (rlen > 0) {
-	    MEMCPY(RARRAY(ary)->ptr + beg, RARRAY(rpl)->ptr, VALUE, rlen);
-	}
-	RARRAY(ary)->len = len;
-    }
-    else {
-	long alen;
-
-	if (beg + len > RARRAY(ary)->len) {
-	    len = RARRAY(ary)->len - beg;
-	}
-
-	alen = RARRAY(ary)->len + rlen - len;
-	if (alen >= RARRAY(ary)->aux.capa) {
-	    REALLOC_N(RARRAY(ary)->ptr, VALUE, alen);
-	    RARRAY(ary)->aux.capa = alen;
-	}
-
-	if (len != rlen) {
-	    MEMMOVE(RARRAY(ary)->ptr + beg + rlen, RARRAY(ary)->ptr + beg + len,
-		    VALUE, RARRAY(ary)->len - (beg + len));
-	    RARRAY(ary)->len = alen;
-	}
-	if (rlen > 0) {
-	    MEMMOVE(RARRAY(ary)->ptr + beg, RARRAY(rpl)->ptr, VALUE, rlen);
-	}
-    }
-}
-
-/* 
- *  call-seq:
- *     array[index]         = obj                     ->  obj
- *     array[start, length] = obj or an_array or nil  ->  obj or an_array or nil
- *     array[range]         = obj or an_array or nil  ->  obj or an_array or nil
- *
- *  Element Assignment---Sets the element at _index_,
- *  or replaces a subarray starting at _start_ and
- *  continuing for _length_ elements, or replaces a subarray
- *  specified by _range_.  If indices are greater than
- *  the current capacity of the array, the array grows
- *  automatically. A negative indices will count backward
- *  from the end of the array. Inserts elements if _length_ is
- *  zero. An +IndexError+ is raised if a negative index points
- *  past the beginning of the array. See also
- *  <code>Array#push</code>, and <code>Array#unshift</code>.
- * 
- *     a = Array.new
- *     a[4] = "4";                 #=> [nil, nil, nil, nil, "4"]
- *     a[0, 3] = [ 'a', 'b', 'c' ] #=> ["a", "b", "c", nil, "4"]
- *     a[1..2] = [ 1, 2 ]          #=> ["a", 1, 2, nil, "4"]
- *     a[0, 2] = "?"               #=> ["?", 2, nil, "4"]
- *     a[0..2] = "A"               #=> ["A", "4"]
- *     a[-1]   = "Z"               #=> ["A", "Z"]
- *     a[1..-1] = nil              #=> ["A", nil]
- *     a[1..-1] = []              #=> ["A"]
- */
-
-static VALUE
-rb_ary_aset(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    long offset, beg, len;
-
-    if (argc == 3) {
-	rb_ary_splice(ary, NUM2LONG(argv[0]), NUM2LONG(argv[1]), argv[2]);
-	return argv[2];
-    }
-    if (argc != 2) {
-	rb_raise(rb_eArgError, "wrong number of arguments (%d for 2)", argc);
-    }
-    if (FIXNUM_P(argv[0])) {
-	offset = FIX2LONG(argv[0]);
-	goto fixnum;
-    }
-    if (rb_range_beg_len(argv[0], &beg, &len, RARRAY(ary)->len, 1)) {
-	/* check if idx is Range */
-	rb_ary_splice(ary, beg, len, argv[1]);
-	return argv[1];
-    }
-
-    offset = NUM2LONG(argv[0]);
-fixnum:
-    rb_ary_store(ary, offset, argv[1]);
-    return argv[1];
-}
-
-/*
- *  call-seq:
- *     array.insert(index, obj...)  -> array
- *  
- *  Inserts the given values before the element with the given index
- *  (which may be negative).
- *     
- *     a = %w{ a b c d }
- *     a.insert(2, 99)         #=> ["a", "b", 99, "c", "d"]
- *     a.insert(-2, 1, 2, 3)   #=> ["a", "b", 99, "c", 1, 2, 3, "d"]
- */
-
-static VALUE
-rb_ary_insert(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    long pos;
-
-    if (argc < 1) {
-	rb_raise(rb_eArgError, "wrong number of arguments (at least 1)");
-    }
-    pos = NUM2LONG(argv[0]);
-    if (pos == -1) {
-	pos = RARRAY(ary)->len;
-    }
-    else if (pos < 0) {
-	pos++;
-    }
-
-    if (argc == 1) return ary;
-    rb_ary_splice(ary, pos, 0, rb_ary_new4(argc - 1, argv + 1));
-    return ary;
-}
-
-/*
- *  call-seq:
- *     array.each {|item| block }   ->   array
- *  
- *  Calls <i>block</i> once for each element in <i>self</i>, passing that
- *  element as a parameter.
- *     
- *     a = [ "a", "b", "c" ]
- *     a.each {|x| print x, " -- " }
- *     
- *  produces:
- *     
- *     a -- b -- c --
- */
-
-VALUE
-rb_ary_each(ary)
-    VALUE ary;
-{
-    long i;
-
-    for (i=0; i<RARRAY(ary)->len; i++) {
-	rb_yield(RARRAY(ary)->ptr[i]);
-    }
-    return ary;
-}
-
-/*
- *  call-seq:
- *     array.each_index {|index| block }  ->  array
- *  
- *  Same as <code>Array#each</code>, but passes the index of the element
- *  instead of the element itself.
- *     
- *     a = [ "a", "b", "c" ]
- *     a.each_index {|x| print x, " -- " }
- *     
- *  produces:
- *     
- *     0 -- 1 -- 2 --
- */
-
-static VALUE
-rb_ary_each_index(ary)
-    VALUE ary;
-{
-    long i;
-
-    for (i=0; i<RARRAY(ary)->len; i++) {
-	rb_yield(LONG2NUM(i));
-    }
-    return ary;
-}
-
-/*
- *  call-seq:
- *     array.reverse_each {|item| block } 
- *  
- *  Same as <code>Array#each</code>, but traverses <i>self</i> in reverse
- *  order.
- *     
- *     a = [ "a", "b", "c" ]
- *     a.reverse_each {|x| print x, " " }
- *     
- *  produces:
- *     
- *     c b a
- */
-
-static VALUE
-rb_ary_reverse_each(ary)
-    VALUE ary;
-{
-    long len = RARRAY(ary)->len;
-
-    while (len--) {
-	rb_yield(RARRAY(ary)->ptr[len]);
-	if (RARRAY(ary)->len < len) {
-	    len = RARRAY(ary)->len;
-	}
-    }
-    return ary;
-}
-
-/*
- *  call-seq:
- *     array.length -> int
- *  
- *  Returns the number of elements in <i>self</i>. May be zero.
- *     
- *     [ 1, 2, 3, 4, 5 ].length   #=> 5
- */
-
-static VALUE
-rb_ary_length(ary)
-    VALUE ary;
-{
-    return LONG2NUM(RARRAY(ary)->len);
-}
-
-/*
- *  call-seq:
- *     array.empty?   -> true or false
- *  
- *  Returns <code>true</code> if <i>self</i> array contains no elements.
- *     
- *     [].empty?   #=> true
- */
-
-static VALUE
-rb_ary_empty_p(ary)
-    VALUE ary;
-{
-    if (RARRAY(ary)->len == 0)
-	return Qtrue;
-    return Qfalse;
-}
-
-VALUE
-rb_ary_dup(ary)
-    VALUE ary;
-{
-    VALUE dup = rb_ary_new2(RARRAY(ary)->len);
-
-    DUPSETUP(dup, ary);
-    MEMCPY(RARRAY(dup)->ptr, RARRAY(ary)->ptr, VALUE, RARRAY(ary)->len);
-    RARRAY(dup)->len = RARRAY(ary)->len;
-    return dup;
-}
-
-extern VALUE rb_output_fs;
-
-static VALUE
-recursive_join(ary, arg, recur)
-    VALUE ary;
-    VALUE *arg;
-    int recur;
-{
-    if (recur) {
-	return rb_str_new2("[...]");
-    }
-    return rb_ary_join(arg[0], arg[1]);
-}
-
-VALUE
-rb_ary_join(ary, sep)
-    VALUE ary, sep;
-{
-    long len = 1, i;
-    int taint = Qfalse;
-    VALUE result, tmp;
-
-    if (RARRAY(ary)->len == 0) return rb_str_new(0, 0);
-    if (OBJ_TAINTED(ary) || OBJ_TAINTED(sep)) taint = Qtrue;
-
-    for (i=0; i<RARRAY(ary)->len; i++) {
-	tmp = rb_check_string_type(RARRAY(ary)->ptr[i]);
-	len += NIL_P(tmp) ? 10 : RSTRING(tmp)->len;
-    }
-    if (!NIL_P(sep)) {
-	StringValue(sep);
-	len += RSTRING(sep)->len * (RARRAY(ary)->len - 1);
-    }
-    result = rb_str_buf_new(len);
-    for (i=0; i<RARRAY(ary)->len; i++) {
-	tmp = RARRAY(ary)->ptr[i];
-	switch (TYPE(tmp)) {
-	  case T_STRING:
-	    break;
-	  case T_ARRAY:
-	    {
-		VALUE args[2];
-
-		args[0] = tmp;
-		args[1] = sep;
-		tmp = rb_exec_recursive(recursive_join, ary, (VALUE)args);
-	    }
-	    break;
-	  default:
-	    tmp = rb_obj_as_string(tmp);
-	}
-	if (i > 0 && !NIL_P(sep))
-	    rb_str_buf_append(result, sep);
-	rb_str_buf_append(result, tmp);
-	if (OBJ_TAINTED(tmp)) taint = Qtrue;
-    }
-
-    if (taint) OBJ_TAINT(result);
-    return result;
-}
-
-/*
- *  call-seq:
- *     array.join(sep=$,)    -> str
- *  
- *  Returns a string created by converting each element of the array to
- *  a string, separated by <i>sep</i>.
- *     
- *     [ "a", "b", "c" ].join        #=> "abc"
- *     [ "a", "b", "c" ].join("-")   #=> "a-b-c"
- */
-
-static VALUE
-rb_ary_join_m(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    VALUE sep;
-
-    rb_scan_args(argc, argv, "01", &sep);
-    if (NIL_P(sep)) sep = rb_output_fs;
-    
-    return rb_ary_join(ary, sep);
-}
-
-/*
- *  call-seq:
- *     array.to_s -> string
- *  
- *  Returns _self_<code>.join</code>.
- *     
- *     [ "a", "e", "i", "o" ].to_s   #=> "aeio"
- *
- */
-
-VALUE
-rb_ary_to_s(ary)
-    VALUE ary;
-{
-    if (RARRAY(ary)->len == 0) return rb_str_new(0, 0);
-    
-    return rb_ary_join(ary, rb_output_fs);
-}
-
-static VALUE
-inspect_ary(ary, dummy, recur)
-    VALUE ary;
-    VALUE dummy;
-    int recur;
-{
-    int tainted = OBJ_TAINTED(ary);
-    long i;
-    VALUE s, str;
-
-    if (recur) return rb_tainted_str_new2("[...]");
-    str = rb_str_buf_new2("[");
-    for (i=0; i<RARRAY(ary)->len; i++) {
-	s = rb_inspect(RARRAY(ary)->ptr[i]);
-	if (OBJ_TAINTED(s)) tainted = Qtrue;
-	if (i > 0) rb_str_buf_cat2(str, ", ");
-	rb_str_buf_append(str, s);
-    }
-    rb_str_buf_cat2(str, "]");
-    if (tainted) OBJ_TAINT(str);
-    return str;
-}
-
-/*
- *  call-seq:
- *     array.inspect  -> string
- *
- *  Create a printable version of <i>array</i>.
- */
-
-static VALUE
-rb_ary_inspect(ary)
-    VALUE ary;
-{
-    if (RARRAY(ary)->len == 0) return rb_str_new2("[]");
-    return rb_exec_recursive(inspect_ary, ary, 0);
-}
-
-/*
- *  call-seq:
- *     array.to_a     -> array
- *  
- *  Returns _self_. If called on a subclass of Array, converts
- *  the receiver to an Array object.
- */
-
-static VALUE
-rb_ary_to_a(ary)
-    VALUE ary;
-{
-    if (rb_obj_class(ary) != rb_cArray) {
-	VALUE dup = rb_ary_new2(RARRAY(ary)->len);
-	rb_ary_replace(dup, ary);
-	return dup;
-    }
-    return ary;
-}
-
-/*
- *  call-seq:
- *     array.to_ary -> array
- *  
- *  Returns _self_.
- */
-
-static VALUE
-rb_ary_to_ary_m(ary)
-    VALUE ary;
-{
-    return ary;
-}
-
-VALUE
-rb_ary_reverse(ary)
-    VALUE ary;
-{
-    VALUE *p1, *p2;
-    VALUE tmp;
-
-    rb_ary_modify(ary);
-    if (RARRAY(ary)->len > 1) {
-	p1 = RARRAY(ary)->ptr;
-	p2 = p1 + RARRAY(ary)->len - 1;	/* points last item */
-
-	while (p1 < p2) {
-	    tmp = *p1;
-	    *p1++ = *p2;
-	    *p2-- = tmp;
-	}
-    }
-    return ary;
-}
-
-/*
- *  call-seq:
- *     array.reverse!   -> array 
- *  
- *  Reverses _self_ in place.
- *     
- *     a = [ "a", "b", "c" ]
- *     a.reverse!       #=> ["c", "b", "a"]
- *     a                #=> ["c", "b", "a"]
- */
-
-static VALUE
-rb_ary_reverse_bang(ary)
-    VALUE ary;
-{
-    return rb_ary_reverse(ary);
-}
-
-/*
- *  call-seq:
- *     array.reverse -> an_array
- *  
- *  Returns a new array containing <i>self</i>'s elements in reverse order.
- *     
- *     [ "a", "b", "c" ].reverse   #=> ["c", "b", "a"]
- *     [ 1 ].reverse               #=> [1]
- */
-
-static VALUE
-rb_ary_reverse_m(ary)
-    VALUE ary;
-{
-    return rb_ary_reverse(rb_ary_dup(ary));
-}
-
-struct ary_sort_data {
-    VALUE ary;
-    VALUE *ptr;
-    long len;
-};
-
-static void
-ary_sort_check(data)
-    struct ary_sort_data *data;
-{
-    if (RARRAY(data->ary)->ptr != data->ptr || RARRAY(data->ary)->len != data->len) {
-	rb_raise(rb_eRuntimeError, "array modified during sort");
-    }
-}
-
-static int
-sort_1(a, b, data)
-    VALUE *a, *b;
-    struct ary_sort_data *data;
-{
-    VALUE retval = rb_yield_values(2, *a, *b);
-    int n;
-
-    n = rb_cmpint(retval, *a, *b);
-    ary_sort_check(data);
-    return n;
-}
-
-static int
-sort_2(ap, bp, data)
-    VALUE *ap, *bp;
-    struct ary_sort_data *data;
-{
-    VALUE retval;
-    VALUE a = *ap, b = *bp;
-    int n;
-
-    if (FIXNUM_P(a) && FIXNUM_P(b)) {
-	if ((long)a > (long)b) return 1;
-	if ((long)a < (long)b) return -1;
-	return 0;
-    }
-    if (TYPE(a) == T_STRING && TYPE(b) == T_STRING) {
-	return rb_str_cmp(a, b);
-    }
-
-    retval = rb_funcall(a, id_cmp, 1, b);
-    n = rb_cmpint(retval, a, b);
-    ary_sort_check(data);
-
-    return n;
-}
-
-static VALUE
-sort_internal(ary)
-    VALUE ary;
-{
-    struct ary_sort_data data;
-
-    data.ary = ary;
-    data.ptr = RARRAY(ary)->ptr; data.len = RARRAY(ary)->len;
-    qsort(RARRAY(ary)->ptr, RARRAY(ary)->len, sizeof(VALUE),
-	  rb_block_given_p()?sort_1:sort_2, &data);
-    return ary;
-}
-
-static VALUE
-sort_unlock(ary)
-    VALUE ary;
-{
-    FL_UNSET(ary, ARY_TMPLOCK);
-    return ary;
-}
-
-/*
- *  call-seq:
- *     array.sort!                   -> array
- *     array.sort! {| a,b | block }  -> array 
- *  
- *  Sorts _self_. Comparisons for
- *  the sort will be done using the <code><=></code> operator or using
- *  an optional code block. The block implements a comparison between
- *  <i>a</i> and <i>b</i>, returning -1, 0, or +1. See also
- *  <code>Enumerable#sort_by</code>.
- *     
- *     a = [ "d", "a", "e", "c", "b" ]
- *     a.sort                    #=> ["a", "b", "c", "d", "e"]
- *     a.sort {|x,y| y <=> x }   #=> ["e", "d", "c", "b", "a"]
- */
-
-VALUE
-rb_ary_sort_bang(ary)
-    VALUE ary;
-{
-    rb_ary_modify(ary);
-    if (RARRAY(ary)->len > 1) {
-	FL_SET(ary, ARY_TMPLOCK);	/* prohibit modification during sort */
-	rb_ensure(sort_internal, ary, sort_unlock, ary);
-    }
-    return ary;
-}
-
-/*
- *  call-seq:
- *     array.sort                   -> an_array 
- *     array.sort {| a,b | block }  -> an_array 
- *  
- *  Returns a new array created by sorting <i>self</i>. Comparisons for
- *  the sort will be done using the <code><=></code> operator or using
- *  an optional code block. The block implements a comparison between
- *  <i>a</i> and <i>b</i>, returning -1, 0, or +1. See also
- *  <code>Enumerable#sort_by</code>.
- *     
- *     a = [ "d", "a", "e", "c", "b" ]
- *     a.sort                    #=> ["a", "b", "c", "d", "e"]
- *     a.sort {|x,y| y <=> x }   #=> ["e", "d", "c", "b", "a"]
- */
-
-VALUE
-rb_ary_sort(ary)
-    VALUE ary;
-{
-    ary = rb_ary_dup(ary);
-    rb_ary_sort_bang(ary);
-    return ary;
-}
-
-/*
- *  call-seq:
- *     array.collect {|item| block }  -> an_array
- *     array.map     {|item| block }  -> an_array
- *  
- *  Invokes <i>block</i> once for each element of <i>self</i>. Creates a 
- *  new array containing the values returned by the block.
- *  See also <code>Enumerable#collect</code>.
- *     
- *     a = [ "a", "b", "c", "d" ]
- *     a.collect {|x| x + "!" }   #=> ["a!", "b!", "c!", "d!"]
- *     a                          #=> ["a", "b", "c", "d"]
- */
-
-static VALUE
-rb_ary_collect(ary)
-    VALUE ary;
-{
-    long i;
-    VALUE collect;
-
-    if (!rb_block_given_p()) {
-	return rb_ary_new4(RARRAY(ary)->len, RARRAY(ary)->ptr);
-    }
-
-    collect = rb_ary_new2(RARRAY(ary)->len);
-    for (i = 0; i < RARRAY(ary)->len; i++) {
-	rb_ary_push(collect, rb_yield(RARRAY(ary)->ptr[i]));
-    }
-    return collect;
-}
-
-/* 
- *  call-seq:
- *     array.collect! {|item| block }   ->   array
- *     array.map!     {|item| block }   ->   array
- *
- *  Invokes the block once for each element of _self_, replacing the
- *  element with the value returned by _block_.
- *  See also <code>Enumerable#collect</code>.
- *   
- *     a = [ "a", "b", "c", "d" ]
- *     a.collect! {|x| x + "!" }
- *     a             #=>  [ "a!", "b!", "c!", "d!" ]
- */
-
-static VALUE
-rb_ary_collect_bang(ary)
-    VALUE ary;
-{
-    long i;
-
-    rb_ary_modify(ary);
-    for (i = 0; i < RARRAY(ary)->len; i++) {
-	rb_ary_store(ary, i, rb_yield(RARRAY(ary)->ptr[i]));
-    }
-    return ary;
-}
-
-VALUE
-rb_get_values_at(obj, olen, argc, argv, func)
-    VALUE obj;
-    long olen;
-    int argc;
-    VALUE *argv;
-    VALUE (*func) _((VALUE,long));
-{
-    VALUE result = rb_ary_new2(argc);
-    long beg, len, i, j;
-
-    for (i=0; i<argc; i++) {
-	if (FIXNUM_P(argv[i])) {
-	    rb_ary_push(result, (*func)(obj, FIX2LONG(argv[i])));
-	    continue;
-	}
-	/* check if idx is Range */
-	switch (rb_range_beg_len(argv[i], &beg, &len, olen, 0)) {
-	  case Qfalse:
-	    break;
-	  case Qnil:
-	    continue;
-	  default:
-	    for (j=0; j<len; j++) {
-		rb_ary_push(result, (*func)(obj, j+beg));
-	    }
-	    continue;
-	}
-	rb_ary_push(result, (*func)(obj, NUM2LONG(argv[i])));
-    }
-    return result;
-}
-
-/* 
- *  call-seq:
- *     array.values_at(selector,... )  -> an_array
- *
- *  Returns an array containing the elements in
- *  _self_ corresponding to the given selector(s). The selectors
- *  may be either integer indices or ranges. 
- *  See also <code>Array#select</code>.
- * 
- *     a = %w{ a b c d e f }
- *     a.values_at(1, 3, 5)
- *     a.values_at(1, 3, 5, 7)
- *     a.values_at(-1, -3, -5, -7)
- *     a.values_at(1..3, 2...5)
- */
-
-static VALUE
-rb_ary_values_at(argc, argv, ary)
-    int argc;
-    VALUE *argv;
-    VALUE ary;
-{
-    return rb_get_values_at(ary, RARRAY(ary)->len, argc, argv, rb_ary_entry);
-}
-
-/*
- *  call-seq:
- *     array.select {|item| block } -> an_array
- *  
- *  Invokes the block passing in successive elements from <i>array</i>,
- *  returning an array containing those elements for which the block
- *  returns a true value (equivalent to <code>Enumerable#select</code>).
- *     
- *     a = %w{ a b c d e f }
- *     a.select {|v| v =~ /[aeiou]/}   #=> ["a", "e"]
- */
-
-static VALUE
-rb_ary_select(ary)
-    VALUE ary;
-{
-    VALUE result;
-    long i;
-
-    result = rb_ary_new2(RARRAY(ary)->len);
-    for (i = 0; i < RARRAY(ary)->len; i++) {
-	if (RTEST(rb_yield(RARRAY(ary)->ptr[i]))) {
-	    rb_ary_push(result, rb_ary_elt(ary, i));
-	}
-    }
-    return result;
-}
-