自学教程：C++ ID2SYM函数代码示例

VALUE rb_RPRuby_Sender_Kernel_internal_backtraceHashForControlFrame(	rb_control_frame_t**		c_current_frame )	{	const char*		c_method_name		=	NULL;	int				c_sourcefile_line	=	0;		//	create new hash for this frame	VALUE	rb_frame_hash			=	rb_hash_new();			VALUE	rb_sourcefile_name		=	Qnil;	VALUE	rb_sourcefile_line		=	Qnil;	VALUE	rb_method_name			=	Qnil;	VALUE	rb_object_for_frame		=	Qnil;		if ( ( *c_current_frame )->iseq != 0 ) {				if ( ( *c_current_frame )->pc != 0 ) {						rb_iseq_t *iseq			= ( *c_current_frame )->iseq;						//	get sourcefile name and set in hash			rb_sourcefile_name		=	iseq->filename;						//	get sourcefile line and set in hash			c_sourcefile_line		=	rb_vm_get_sourceline( *c_current_frame );			rb_sourcefile_line		=	INT2FIX( c_sourcefile_line );						//	get name of instruction sequence			rb_method_name			=	ID2SYM( rb_intern( StringValuePtr( iseq->name ) ) );							rb_object_for_frame	=	( *c_current_frame )->self;		}	}	else if ( RUBYVM_CFUNC_FRAME_P( *c_current_frame ) ) {				//	get name of method		#if RUBY_PATCHLEVEL >= -1		//	For 1.9.2:		const rb_method_entry_t*	c_method_for_frame	=	( *c_current_frame )->me;		c_method_name				=	rb_id2name( c_method_for_frame->called_id );		#else		//	For 1.9.1:		c_method_name				=	rb_id2name( ( *c_current_frame )->method_id );		#endif				rb_method_name				=	( c_method_name == NULL ? Qnil : ID2SYM( rb_intern( c_method_name ) ) );		rb_object_for_frame	=	( *c_current_frame )->self;			}	//	we have to test this case - it works for blocks but there may be other cases too	else if (	( *c_current_frame )->block_iseq != 0			 &&	( *c_current_frame )->pc == 0)	{			//	If we got here we have a fiber		//	There doesn't seem to be much that we can tell about a fiber's context					VALUE			rb_current_fiber	=	rb_fiber_current();		rb_fiber_t*		c_current_fiber		=	NULL;		GetFiberPtr(	rb_current_fiber, 						c_current_fiber);								rb_context_t*	c_context			=	& c_current_fiber->cont;		//		rb_block_t*	c_blockptr = RUBY_VM_GET_BLOCK_PTR_IN_CFP( *c_current_frame );		 		rb_object_for_frame	=	( *c_current_frame )->self;				//	get sourcefile name and set in hash		rb_sourcefile_name		=	Qnil;		//	get sourcefile line and set in hash		rb_sourcefile_line		=	Qnil;				//	get name of instruction sequence		rb_method_name			=	rb_str_new2( "<Fiber>" );						//	if we have a fiber we also include its ruby reference since we have so little other context		rb_hash_aset(	rb_frame_hash,						ID2SYM( rb_intern( "fiber" ) ),						c_context->self );				//	The one time that we know a fiber is in use in the Ruby base is with Enumerators		//	For now we will handle that with a special case				VALUE	rb_enumerator_class	=	rb_const_get(	rb_cObject,														rb_intern( "Enumerator" ) );				VALUE	rb_object_for_frame_klass	=	( ( TYPE( rb_object_for_frame ) == T_CLASS ) ? rb_object_for_frame : rb_funcall( rb_object_for_frame, rb_intern( "class" ), 0 ) );		VALUE	rb_ancestors	=	rb_funcall(	rb_object_for_frame_klass,												rb_intern( "ancestors" ),												0 );				if ( rb_ary_includes(	rb_ancestors,								rb_enumerator_class ) )	{						struct enumerator* c_enumerator		=	enumerator_ptr( rb_object_for_frame );						rb_object_for_frame	=	c_enumerator->obj;			rb_method_name		=	ID2SYM( c_enumerator->meth );					}//.........这里部分代码省略.........

void init_mysql2_result() {  cBigDecimal = rb_const_get(rb_cObject, rb_intern("BigDecimal"));  cDate = rb_const_get(rb_cObject, rb_intern("Date"));  cDateTime = rb_const_get(rb_cObject, rb_intern("DateTime"));  cMysql2Result = rb_define_class_under(mMysql2, "Result", rb_cObject);  rb_define_method(cMysql2Result, "each", rb_mysql_result_each, -1);  rb_define_method(cMysql2Result, "fields", rb_mysql_result_fetch_fields, 0);  rb_define_method(cMysql2Result, "count", rb_mysql_result_count, 0);  rb_define_alias(cMysql2Result, "size", "count");  intern_encoding_from_charset = rb_intern("encoding_from_charset");  intern_encoding_from_charset_code = rb_intern("encoding_from_charset_code");  intern_new          = rb_intern("new");  intern_utc          = rb_intern("utc");  intern_local        = rb_intern("local");  intern_merge        = rb_intern("merge");  intern_localtime    = rb_intern("localtime");  intern_local_offset = rb_intern("local_offset");  intern_civil        = rb_intern("civil");  intern_new_offset   = rb_intern("new_offset");  sym_symbolize_keys  = ID2SYM(rb_intern("symbolize_keys"));  sym_as              = ID2SYM(rb_intern("as"));  sym_array           = ID2SYM(rb_intern("array"));  sym_local           = ID2SYM(rb_intern("local"));  sym_utc             = ID2SYM(rb_intern("utc"));  sym_cast_booleans   = ID2SYM(rb_intern("cast_booleans"));  sym_database_timezone     = ID2SYM(rb_intern("database_timezone"));  sym_application_timezone  = ID2SYM(rb_intern("application_timezone"));  sym_cache_rows     = ID2SYM(rb_intern("cache_rows"));  sym_cast           = ID2SYM(rb_intern("cast"));  sym_stream         = ID2SYM(rb_intern("stream"));  opt_decimal_zero = rb_str_new2("0.0");  rb_global_variable(&opt_decimal_zero); //never GC  opt_float_zero = rb_float_new((double)0);  rb_global_variable(&opt_float_zero);  opt_time_year = INT2NUM(2000);  opt_time_month = INT2NUM(1);  opt_utc_offset = INT2NUM(0);#ifdef HAVE_RUBY_ENCODING_H  binaryEncoding = rb_enc_find("binary");#endif}

/* * The transaction_id of the offended message. * * @return [Number] the value of attribute transaction_id. */static VALUEopenflow_error_transaction_id( VALUE self ) {  return rb_hash_aref( rb_iv_get( self, "@attribute" ), ID2SYM( rb_intern( "transaction_id" ) ) );}

static inline VALUEvm_call_method(rb_thread_t *th, rb_control_frame_t *cfp,	       int num, const rb_block_t *blockptr, VALUE flag,	       ID id, const rb_method_entry_t *me, VALUE recv){    VALUE val;  start_method_dispatch:    if (me != 0) {	if ((me->flag == 0)) {	  normal_method_dispatch:	    switch (me->def->type) {	      case VM_METHOD_TYPE_ISEQ:{		vm_setup_method(th, cfp, recv, num, blockptr, flag, me);		return Qundef;	      }	      case VM_METHOD_TYPE_NOTIMPLEMENTED:	      case VM_METHOD_TYPE_CFUNC:{		val = vm_call_cfunc(th, cfp, num, recv, blockptr, me);		break;	      }	      case VM_METHOD_TYPE_ATTRSET:{		if (num != 1) {		    rb_raise(rb_eArgError, "wrong number of arguments (%d for 1)", num);		}		val = rb_ivar_set(recv, me->def->body.attr.id, *(cfp->sp - 1));		cfp->sp -= 2;		break;	      }	      case VM_METHOD_TYPE_IVAR:{		if (num != 0) {		    rb_raise(rb_eArgError, "wrong number of arguments (%d for 0)", num);		}		val = rb_attr_get(recv, me->def->body.attr.id);		cfp->sp -= 1;		break;	      }	      case VM_METHOD_TYPE_MISSING:{		VALUE *argv = ALLOCA_N(VALUE, num+1);		argv[0] = ID2SYM(me->def->original_id);		MEMCPY(argv+1, cfp->sp - num, VALUE, num);		cfp->sp += - num - 1;		val = rb_funcall2(recv, rb_intern("method_missing"), num+1, argv);		break;	      }	      case VM_METHOD_TYPE_BMETHOD:{		VALUE *argv = ALLOCA_N(VALUE, num);		MEMCPY(argv, cfp->sp - num, VALUE, num);		cfp->sp += - num - 1;		val = vm_call_bmethod(th, recv, num, argv, blockptr, me);		break;	      }	      case VM_METHOD_TYPE_ZSUPER:{		VALUE klass = RCLASS_SUPER(me->klass);		me = rb_method_entry(klass, id);		if (me != 0) {		    goto normal_method_dispatch;		}		else {		    goto start_method_dispatch;		}	      }	      case VM_METHOD_TYPE_OPTIMIZED:{		switch (me->def->body.optimize_type) {		  case OPTIMIZED_METHOD_TYPE_SEND: {		    rb_control_frame_t *reg_cfp = cfp;		    rb_num_t i = num - 1;		    VALUE sym;		    if (num == 0) {			rb_raise(rb_eArgError, "no method name given");		    }		    sym = TOPN(i);		    id = SYMBOL_P(sym) ? SYM2ID(sym) : rb_to_id(sym);		    /* shift arguments */		    if (i > 0) {			MEMMOVE(&TOPN(i), &TOPN(i-1), VALUE, i);		    }		    me = rb_method_entry(CLASS_OF(recv), id);		    num -= 1;		    DEC_SP(1);		    flag |= VM_CALL_FCALL_BIT | VM_CALL_OPT_SEND_BIT;		    goto start_method_dispatch;		  }		  case OPTIMIZED_METHOD_TYPE_CALL: {		    rb_proc_t *proc;		    int argc = num;		    VALUE *argv = ALLOCA_N(VALUE, num);		    GetProcPtr(recv, proc);		    MEMCPY(argv, cfp->sp - num, VALUE, num);		    cfp->sp -= num + 1;		    val = rb_vm_invoke_proc(th, proc, proc->block.self, argc, argv, blockptr);		    break;		  }		  default://.........这里部分代码省略.........

/* * call-seq: to_h * * Returns the configuration instance variables as a hash, that can be * passed to the configure method. */static VALUE cState_to_h(VALUE self){    VALUE result = rb_hash_new();    GET_STATE(self);    set_state_ivars(result, self);    rb_hash_aset(result, ID2SYM(i_indent), rb_str_new(state->indent, state->indent_len));    rb_hash_aset(result, ID2SYM(i_space), rb_str_new(state->space, state->space_len));    rb_hash_aset(result, ID2SYM(i_space_before), rb_str_new(state->space_before, state->space_before_len));    rb_hash_aset(result, ID2SYM(i_object_nl), rb_str_new(state->object_nl, state->object_nl_len));    rb_hash_aset(result, ID2SYM(i_array_nl), rb_str_new(state->array_nl, state->array_nl_len));    rb_hash_aset(result, ID2SYM(i_allow_nan), state->allow_nan ? Qtrue : Qfalse);    rb_hash_aset(result, ID2SYM(i_ascii_only), state->ascii_only ? Qtrue : Qfalse);    rb_hash_aset(result, ID2SYM(i_quirks_mode), state->quirks_mode ? Qtrue : Qfalse);    rb_hash_aset(result, ID2SYM(i_max_nesting), LONG2FIX(state->max_nesting));    rb_hash_aset(result, ID2SYM(i_depth), LONG2FIX(state->depth));    rb_hash_aset(result, ID2SYM(i_buffer_initial_length), LONG2FIX(state->buffer_initial_length));    return result;}

voidinit_ruby_class(){#if 0  // For documentation using YARD  VALUE opencv = rb_define_module("OpenCV");#endif  if (rb_klass)    return;  VALUE opencv = rb_module_opencv();    rb_klass = rb_define_class_under(opencv, "CvCapture", rb_cData);    VALUE video_interface = rb_hash_new();  /*   * :any, :mil, :vfw, :v4l, :v4l2, :fireware, :ieee1394, :dc1394, :cmu1394,   * :stereo, :tyzx, :tyzx_left, :tyzx_right, :tyzx_color, :tyzx_z, :qt, :qtuicktime   */  rb_define_const(rb_klass, "INTERFACE", video_interface);  rb_hash_aset(video_interface, ID2SYM(rb_intern("any")), INT2FIX(CV_CAP_ANY));  rb_hash_aset(video_interface, ID2SYM(rb_intern("mil")), INT2FIX(CV_CAP_MIL));  rb_hash_aset(video_interface, ID2SYM(rb_intern("vfw")), INT2FIX(CV_CAP_VFW));  rb_hash_aset(video_interface, ID2SYM(rb_intern("v4l")), INT2FIX(CV_CAP_V4L));  rb_hash_aset(video_interface, ID2SYM(rb_intern("v4l2")), INT2FIX(CV_CAP_V4L2));  rb_hash_aset(video_interface, ID2SYM(rb_intern("fireware")), INT2FIX(CV_CAP_FIREWARE));  rb_hash_aset(video_interface, ID2SYM(rb_intern("ieee1394")), INT2FIX(CV_CAP_IEEE1394));  rb_hash_aset(video_interface, ID2SYM(rb_intern("dc1394")), INT2FIX(CV_CAP_DC1394));  rb_hash_aset(video_interface, ID2SYM(rb_intern("cmu1394")), INT2FIX(CV_CAP_CMU1394));  rb_hash_aset(video_interface, ID2SYM(rb_intern("stereo")), INT2FIX(CV_CAP_STEREO));  rb_hash_aset(video_interface, ID2SYM(rb_intern("tyzx")), INT2FIX(CV_CAP_TYZX));  rb_hash_aset(video_interface, ID2SYM(rb_intern("tyzx_left")), INT2FIX(CV_TYZX_LEFT));  rb_hash_aset(video_interface, ID2SYM(rb_intern("tyzx_right")), INT2FIX(CV_TYZX_RIGHT));  rb_hash_aset(video_interface, ID2SYM(rb_intern("tyzx_color")), INT2FIX(CV_TYZX_COLOR));  rb_hash_aset(video_interface, ID2SYM(rb_intern("tyzx_z")), INT2FIX(CV_TYZX_Z));  rb_hash_aset(video_interface, ID2SYM(rb_intern("qt")), INT2FIX(CV_CAP_QT));  rb_hash_aset(video_interface, ID2SYM(rb_intern("quicktime")), INT2FIX(CV_CAP_QT));    rb_define_singleton_method(rb_klass, "open", RUBY_METHOD_FUNC(rb_open), -1);  rb_define_method(rb_klass, "close", RUBY_METHOD_FUNC(rb_close), 0);    rb_define_method(rb_klass, "grab", RUBY_METHOD_FUNC(rb_grab), 0);  rb_define_method(rb_klass, "retrieve", RUBY_METHOD_FUNC(rb_retrieve), 0);  rb_define_method(rb_klass, "query", RUBY_METHOD_FUNC(rb_query), 0);  rb_define_method(rb_klass, "millisecond", RUBY_METHOD_FUNC(rb_get_millisecond), 0);  rb_define_method(rb_klass, "millisecond=", RUBY_METHOD_FUNC(rb_set_millisecond), 1);  rb_define_method(rb_klass, "frames", RUBY_METHOD_FUNC(rb_get_frames), 0);  rb_define_method(rb_klass, "frames=", RUBY_METHOD_FUNC(rb_set_frames), 1);  rb_define_method(rb_klass, "avi_ratio", RUBY_METHOD_FUNC(rb_get_avi_ratio), 0);  rb_define_method(rb_klass, "avi_ratio=", RUBY_METHOD_FUNC(rb_set_avi_ratio), 1);  rb_define_method(rb_klass, "size", RUBY_METHOD_FUNC(rb_get_size), 0);  rb_define_method(rb_klass, "size=", RUBY_METHOD_FUNC(rb_set_size), 1);  rb_define_method(rb_klass, "width", RUBY_METHOD_FUNC(rb_get_width), 0);  rb_define_method(rb_klass, "width=", RUBY_METHOD_FUNC(rb_set_width), 1);  rb_define_method(rb_klass, "height", RUBY_METHOD_FUNC(rb_get_height), 0);  rb_define_method(rb_klass, "height=", RUBY_METHOD_FUNC(rb_set_height), 1);  rb_define_method(rb_klass, "fps", RUBY_METHOD_FUNC(rb_get_fps), 0);  rb_define_method(rb_klass, "fps=", RUBY_METHOD_FUNC(rb_set_fps), 1);  rb_define_method(rb_klass, "fourcc", RUBY_METHOD_FUNC(rb_get_fourcc), 0);  rb_define_method(rb_klass, "frame_count", RUBY_METHOD_FUNC(rb_get_frame_count), 0);  rb_define_method(rb_klass, "format", RUBY_METHOD_FUNC(rb_get_format), 0);  rb_define_method(rb_klass, "mode", RUBY_METHOD_FUNC(rb_get_mode), 0);  rb_define_method(rb_klass, "brightness", RUBY_METHOD_FUNC(rb_get_brightness), 0);  rb_define_method(rb_klass, "contrast", RUBY_METHOD_FUNC(rb_get_contrast), 0);  rb_define_method(rb_klass, "saturation", RUBY_METHOD_FUNC(rb_get_saturation), 0);  rb_define_method(rb_klass, "hue", RUBY_METHOD_FUNC(rb_get_hue), 0);  rb_define_method(rb_klass, "gain", RUBY_METHOD_FUNC(rb_get_gain), 0);  rb_define_method(rb_klass, "exposure", RUBY_METHOD_FUNC(rb_get_exposure), 0);  rb_define_method(rb_klass, "convert_rgb", RUBY_METHOD_FUNC(rb_get_convert_rgb), 0);  rb_define_method(rb_klass, "rectification", RUBY_METHOD_FUNC(rb_get_rectification), 0);}

VALUE shoes_hash_set(VALUE hsh, ID key, VALUE val) {    if (NIL_P(hsh))        hsh = rb_hash_new();    rb_hash_aset(hsh, ID2SYM(key), val);    return hsh;}

void init_mysql2_client() {  /* verify the libmysql we're about to use was the version we were built against     https://github.com/luislavena/mysql-gem/commit/a600a9c459597da0712f70f43736e24b484f8a99 */  int i;  int dots = 0;  const char *lib = mysql_get_client_info();  for (i = 0; lib[i] != 0 && MYSQL_LINK_VERSION[i] != 0; i++) {    if (lib[i] == '.') {      dots++;              /* we only compare MAJOR and MINOR */      if (dots == 2) break;    }    if (lib[i] != MYSQL_LINK_VERSION[i]) {      rb_raise(rb_eRuntimeError, "Incorrect MySQL client library version! This gem was compiled for %s but the client library is %s.", MYSQL_LINK_VERSION, lib);      return;    }  }  /* Initializing mysql library, so different threads could call Client.new */  /* without race condition in the library */  if (mysql_library_init(0, NULL, NULL) != 0) {    rb_raise(rb_eRuntimeError, "Could not initialize MySQL client library");    return;  }#if 0  mMysql2      = rb_define_module("Mysql2"); Teach RDoc about Mysql2 constant.#endif  cMysql2Client = rb_define_class_under(mMysql2, "Client", rb_cObject);  rb_define_alloc_func(cMysql2Client, allocate);  rb_define_singleton_method(cMysql2Client, "escape", rb_mysql_client_escape, 1);  rb_define_method(cMysql2Client, "close", rb_mysql_client_close, 0);  rb_define_method(cMysql2Client, "query", rb_mysql_client_query, -1);  rb_define_method(cMysql2Client, "abandon_results!", rb_mysql_client_abandon_results, 0);  rb_define_method(cMysql2Client, "escape", rb_mysql_client_real_escape, 1);  rb_define_method(cMysql2Client, "info", rb_mysql_client_info, 0);  rb_define_method(cMysql2Client, "server_info", rb_mysql_client_server_info, 0);  rb_define_method(cMysql2Client, "socket", rb_mysql_client_socket, 0);  rb_define_method(cMysql2Client, "async_result", rb_mysql_client_async_result, 0);  rb_define_method(cMysql2Client, "last_id", rb_mysql_client_last_id, 0);  rb_define_method(cMysql2Client, "affected_rows", rb_mysql_client_affected_rows, 0);  rb_define_method(cMysql2Client, "thread_id", rb_mysql_client_thread_id, 0);  rb_define_method(cMysql2Client, "ping", rb_mysql_client_ping, 0);  rb_define_method(cMysql2Client, "select_db", rb_mysql_client_select_db, 1);  rb_define_method(cMysql2Client, "more_results?", rb_mysql_client_more_results, 0);  rb_define_method(cMysql2Client, "next_result", rb_mysql_client_next_result, 0);  rb_define_method(cMysql2Client, "store_result", rb_mysql_client_store_result, 0);  rb_define_method(cMysql2Client, "reconnect=", set_reconnect, 1);  rb_define_method(cMysql2Client, "warning_count", rb_mysql_client_warning_count, 0);  rb_define_method(cMysql2Client, "query_info_string", rb_mysql_info, 0);#ifdef HAVE_RUBY_ENCODING_H  rb_define_method(cMysql2Client, "encoding", rb_mysql_client_encoding, 0);#endif  rb_define_private_method(cMysql2Client, "connect_timeout=", set_connect_timeout, 1);  rb_define_private_method(cMysql2Client, "read_timeout=", set_read_timeout, 1);  rb_define_private_method(cMysql2Client, "write_timeout=", set_write_timeout, 1);  rb_define_private_method(cMysql2Client, "local_infile=", set_local_infile, 1);  rb_define_private_method(cMysql2Client, "charset_name=", set_charset_name, 1);  rb_define_private_method(cMysql2Client, "secure_auth=", set_secure_auth, 1);  rb_define_private_method(cMysql2Client, "default_file=", set_read_default_file, 1);  rb_define_private_method(cMysql2Client, "default_group=", set_read_default_group, 1);  rb_define_private_method(cMysql2Client, "init_command=", set_init_command, 1);  rb_define_private_method(cMysql2Client, "ssl_set", set_ssl_options, 5);  rb_define_private_method(cMysql2Client, "initialize_ext", initialize_ext, 0);  rb_define_private_method(cMysql2Client, "connect", rb_connect, 7);  sym_id              = ID2SYM(rb_intern("id"));  sym_version         = ID2SYM(rb_intern("version"));  sym_async           = ID2SYM(rb_intern("async"));  sym_symbolize_keys  = ID2SYM(rb_intern("symbolize_keys"));  sym_as              = ID2SYM(rb_intern("as"));  sym_array           = ID2SYM(rb_intern("array"));  sym_stream          = ID2SYM(rb_intern("stream"));  intern_merge = rb_intern("merge");  intern_merge_bang = rb_intern("merge!");  intern_error_number_eql = rb_intern("error_number=");  intern_sql_state_eql = rb_intern("sql_state=");#ifdef CLIENT_LONG_PASSWORD  rb_const_set(cMysql2Client, rb_intern("LONG_PASSWORD"),      LONG2NUM(CLIENT_LONG_PASSWORD));#endif#ifdef CLIENT_FOUND_ROWS  rb_const_set(cMysql2Client, rb_intern("FOUND_ROWS"),      LONG2NUM(CLIENT_FOUND_ROWS));#endif#ifdef CLIENT_LONG_FLAG  rb_const_set(cMysql2Client, rb_intern("LONG_FLAG"),      LONG2NUM(CLIENT_LONG_FLAG));#endif#ifdef CLIENT_CONNECT_WITH_DB//.........这里部分代码省略.........

static void hash_set(VALUE hash, const char *sym, VALUE v) {    rb_hash_aset(hash, ID2SYM(rb_intern(sym)), v);}

void rxml_init_reader(void){  BASE_URI_SYMBOL = ID2SYM(rb_intern("base_uri"));  ENCODING_SYMBOL = ID2SYM(rb_intern("encoding"));  IO_ATTR = rb_intern("@io");  OPTIONS_SYMBOL = ID2SYM(rb_intern("options"));  cXMLReader = rb_define_class_under(mXML, "Reader", rb_cObject);  rb_define_singleton_method(cXMLReader, "document", rxml_reader_document, 1);  rb_define_singleton_method(cXMLReader, "file", rxml_reader_file, -1);  rb_define_singleton_method(cXMLReader, "io", rxml_reader_io, -1);  rb_define_singleton_method(cXMLReader, "string", rxml_reader_string, -1);  rb_define_method(cXMLReader, "[]", rxml_reader_attribute, 1);  rb_define_method(cXMLReader, "attribute_count", rxml_reader_attr_count, 0);  rb_define_method(cXMLReader, "base_uri", rxml_reader_base_uri, 0);#if LIBXML_VERSION >= 20618  rb_define_method(cXMLReader, "byte_consumed", rxml_reader_byte_consumed, 0);#endif  rb_define_method(cXMLReader, "close", rxml_reader_close, 0);#if LIBXML_VERSION >= 20617  rb_define_method(cXMLReader, "column_number", rxml_reader_column_number, 0);#endif  rb_define_method(cXMLReader, "depth", rxml_reader_depth, 0);  rb_define_method(cXMLReader, "encoding", rxml_reader_encoding, 0);  rb_define_method(cXMLReader, "expand", rxml_reader_expand, 0);  rb_define_method(cXMLReader, "has_attributes?", rxml_reader_has_attributes, 0);  rb_define_method(cXMLReader, "has_value?", rxml_reader_has_value, 0);#if LIBXML_VERSION >= 20617  rb_define_method(cXMLReader, "line_number", rxml_reader_line_number, 0);#endif  rb_define_method(cXMLReader, "local_name", rxml_reader_local_name, 0);  rb_define_method(cXMLReader, "lookup_namespace",       rxml_reader_lookup_namespace, 1);  rb_define_method(cXMLReader, "move_to_attribute", rxml_reader_move_to_attr, 1);  rb_define_method(cXMLReader, "move_to_first_attribute",       rxml_reader_move_to_first_attr, 0);  rb_define_method(cXMLReader, "move_to_next_attribute",       rxml_reader_move_to_next_attr, 0);  rb_define_method(cXMLReader, "move_to_element", rxml_reader_move_to_element,       0);  rb_define_method(cXMLReader, "name", rxml_reader_name, 0);  rb_define_method(cXMLReader, "namespace_uri", rxml_reader_namespace_uri, 0);  rb_define_method(cXMLReader, "next", rxml_reader_next, 0);  rb_define_method(cXMLReader, "next_sibling", rxml_reader_next_sibling, 0);  rb_define_method(cXMLReader, "node", rxml_reader_node, 0);  rb_define_method(cXMLReader, "node_type", rxml_reader_node_type, 0);  rb_define_method(cXMLReader, "normalization", rxml_reader_normalization, 0);  rb_define_method(cXMLReader, "prefix", rxml_reader_prefix, 0);  rb_define_method(cXMLReader, "quote_char", rxml_reader_quote_char, 0);  rb_define_method(cXMLReader, "read", rxml_reader_read, 0);  rb_define_method(cXMLReader, "read_attribute_value", rxml_reader_read_attr_value, 0);  rb_define_method(cXMLReader, "read_inner_xml", rxml_reader_read_inner_xml, 0);  rb_define_method(cXMLReader, "read_outer_xml", rxml_reader_read_outer_xml, 0);  rb_define_method(cXMLReader, "read_state", rxml_reader_read_state, 0);  rb_define_method(cXMLReader, "read_string", rxml_reader_read_string, 0);  rb_define_method(cXMLReader, "relax_ng_validate",       rxml_reader_relax_ng_validate, 1);  rb_define_method(cXMLReader, "standalone", rxml_reader_standalone, 0);#if LIBXML_VERSION >= 20620  rb_define_method(cXMLReader, "schema_validate", rxml_reader_schema_validate, 1);#endif  rb_define_method(cXMLReader, "value", rxml_reader_value, 0);  rb_define_method(cXMLReader, "xml_lang", rxml_reader_xml_lang, 0);  rb_define_method(cXMLReader, "xml_version", rxml_reader_xml_version, 0);  rb_define_method(cXMLReader, "default?", rxml_reader_default, 0);  rb_define_method(cXMLReader, "empty_element?", rxml_reader_empty_element, 0);  rb_define_method(cXMLReader, "namespace_declaration?", rxml_reader_namespace_declaration, 0);  rb_define_method(cXMLReader, "valid?", rxml_reader_valid, 0);  /* Constants */  rb_define_const(cXMLReader, "LOADDTD", INT2FIX(XML_PARSER_LOADDTD));  rb_define_const(cXMLReader, "DEFAULTATTRS", INT2FIX(XML_PARSER_DEFAULTATTRS));  rb_define_const(cXMLReader, "VALIDATE", INT2FIX(XML_PARSER_VALIDATE));  rb_define_const(cXMLReader, "SUBST_ENTITIES", INT2FIX(XML_PARSER_SUBST_ENTITIES));  rb_define_const(cXMLReader, "SEVERITY_VALIDITY_WARNING", INT2FIX(XML_PARSER_SEVERITY_VALIDITY_WARNING));  rb_define_const(cXMLReader, "SEVERITY_VALIDITY_ERROR", INT2FIX(XML_PARSER_SEVERITY_VALIDITY_ERROR));  rb_define_const(cXMLReader, "SEVERITY_WARNING", INT2FIX(XML_PARSER_SEVERITY_WARNING));  rb_define_const(cXMLReader, "SEVERITY_ERROR", INT2FIX(XML_PARSER_SEVERITY_ERROR));  rb_define_const(cXMLReader, "TYPE_NONE", INT2FIX(XML_READER_TYPE_NONE));  rb_define_const(cXMLReader, "TYPE_ELEMENT", INT2FIX(XML_READER_TYPE_ELEMENT));  rb_define_const(cXMLReader, "TYPE_ATTRIBUTE", INT2FIX(XML_READER_TYPE_ATTRIBUTE));  rb_define_const(cXMLReader, "TYPE_TEXT", INT2FIX(XML_READER_TYPE_TEXT));  rb_define_const(cXMLReader, "TYPE_CDATA", INT2FIX(XML_READER_TYPE_CDATA));  rb_define_const(cXMLReader, "TYPE_ENTITY_REFERENCE", INT2FIX(XML_READER_TYPE_ENTITY_REFERENCE));  rb_define_const(cXMLReader, "TYPE_ENTITY", INT2FIX(XML_READER_TYPE_ENTITY));  rb_define_const(cXMLReader, "TYPE_PROCESSING_INSTRUCTION", INT2FIX(XML_READER_TYPE_PROCESSING_INSTRUCTION));  rb_define_const(cXMLReader, "TYPE_COMMENT", INT2FIX(XML_READER_TYPE_COMMENT));  rb_define_const(cXMLReader, "TYPE_DOCUMENT",       INT2FIX(XML_READER_TYPE_DOCUMENT));  rb_define_const(cXMLReader, "TYPE_DOCUMENT_TYPE", INT2FIX(XML_READER_TYPE_DOCUMENT_TYPE));  rb_define_const(cXMLReader, "TYPE_DOCUMENT_FRAGMENT", INT2FIX(XML_READER_TYPE_DOCUMENT_FRAGMENT));  rb_define_const(cXMLReader, "TYPE_NOTATION",       INT2FIX(XML_READER_TYPE_NOTATION));  rb_define_const(cXMLReader, "TYPE_WHITESPACE", INT2FIX(XML_READER_TYPE_WHITESPACE));  rb_define_const(cXMLReader, "TYPE_SIGNIFICANT_WHITESPACE", INT2FIX(XML_READER_TYPE_SIGNIFICANT_WHITESPACE));  rb_define_const(cXMLReader, "TYPE_END_ELEMENT", INT2FIX(XML_READER_TYPE_END_ELEMENT));  rb_define_const(cXMLReader, "TYPE_END_ENTITY", INT2FIX(XML_READER_TYPE_END_ENTITY));  rb_define_const(cXMLReader, "TYPE_XML_DECLARATION", INT2FIX(XML_READER_TYPE_XML_DECLARATION));  /* Read states */  rb_define_const(cXMLReader, "MODE_INITIAL", INT2FIX(XML_TEXTREADER_MODE_INITIAL));  rb_define_const(cXMLReader, "MODE_INTERACTIVE", INT2FIX(XML_TEXTREADER_MODE_INTERACTIVE));  rb_define_const(cXMLReader, "MODE_ERROR", INT2FIX(XML_TEXTREADER_MODE_ERROR));//.........这里部分代码省略.........

/* * call-seq: *   IplImage.smoothness(<i>lowFreqRatio, blankDensity, messyDensity, highFreqRatio</i>) -> [ symbol, float, float ] * * Determines if the image's smoothness is either, :smooth, :messy, or :blank. * * Original Author: [email
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