{"id":2250,"date":"2011-07-05T15:51:52","date_gmt":"2011-07-05T06:51:52","guid":{"rendered":"http:\/\/www.moonmile.net\/blog\/?p=2250"},"modified":"2011-07-05T15:51:52","modified_gmt":"2011-07-05T06:51:52","slug":"objective-c-%e3%81%ae-autorelease-%e3%81%ae%e5%8b%95%e3%81%8d","status":"publish","type":"post","link":"http:\/\/www.moonmile.net\/blog\/archives\/2250","title":{"rendered":"objective-c \u306e autorelease \u306e\u52d5\u304d"},"content":{"rendered":"

C# \u306e\u30ac\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3068\u540c\u3058\u306a\u306e\u304b\u306a\u3041\u3001\u3068\u601d\u3063\u305f\u3051\u3069\u3001\u52d5\u304d\u7684\u306b\u306f c++ \u306e\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u306b\u8fd1\u3044\u306e\u304b\u306a\u3002
\nautorelease \u3092\u6307\u5b9a\u3059\u308b\u3068\u3001NSAutoreleasePool \u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u6e9c\u3081\u8fbc\u307e\u308c\u308b\u3088\u3046\u3067\u3059\u3002\u3053\u3053\u3067\u3001\u9593\u9055\u3063\u3066 release \u3057\u3066\u3057\u307e\u3046\u3068\u843d\u3061\u3066\u3057\u307e\u3046\uff08core dump\uff09\u306e\u3067\u3001alloc \u3068 release \u306e\u5bfe\u5fdc\u306f\u3001malloc\/free, new\/delete \u4e26\u306b\u53b3\u3057\u3044\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u3057\u306a\u3044\u3068\u99c4\u76ee\u3067\u3059\u306d\u3002
\n\u4e00\u5f8b\u3001autorelease \u3092\u4f7f\u3063\u3066 release \u3092\u4f7f\u308f\u306a\u3044\u3067\u8a18\u8ff0\u3059\u308b\u304b\u3001autorelease \u3092\u4f7f\u308f\u305a\u306b release \u81ea\u4f53\u3092\u307e\u3081\u306b\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3057\u3066\u3044\u304f\u304b\u60a9\u3080\u3068\u3053\u308d\u3002<\/p>\n

UIImage \u306e\u3088\u3046\u306b\u5927\u304d\u3081\u306a\u30e1\u30e2\u30ea\u3092\u53d6\u5f97\u3059\u308b\u3082\u306e\u306f\u3001autorelease \u306b\u3059\u308b\u3068\u30e1\u30e2\u30ea\u3092\u5360\u6709\u3057\u3066\u3057\u307e\u3046\u306e\u3067\u3001release \u3092\u3059\u308b\u3063\u3066\u306e\u304c\u9069\u5f53\u3067\u3059\u306d\u3002<\/p>\n

\r\n\/*\r\nexport INCLUDE=\/GNUstep\/System\/Library\/Headers\r\nexport LIB=\/GNUstep\/System\/Library\/Libraries\r\nexport CFLAGS='-fconstant-string-class=NSConstantString  -enable-auto-import'\r\n\r\ngcc -o main main.m -lobjc -lgnustep-base -I $INCLUDE -L $LIB $CFLAGS\r\n*\/\r\n#import <stdio.h>\r\n#import <Foundation\/Foundation.h>\r\n#import <Foundation\/NSObject.h>\r\n\r\n@interface Hello: NSObject\r\n{\r\n\t@private\r\n\tNSString *_msg ;\r\n}\r\n@end\r\n\r\n@implementation Hello\r\n- (void)setMessage:(NSString*)msg \r\n{\r\n\t_msg = msg;\r\n}\r\n- (void)print\r\n{\r\n\t\/\/ NSLog( _msg );\r\n\tprintf(&quot;%s\\n&quot;, [_msg cString]);\r\n}\r\n- (void)dealloc\r\n{\r\n\tNSLog( @&quot;in dealloc&quot; );\r\n\t[super dealloc];\r\n}\r\n@end\r\n\r\nint _main(int argc, char *argv[])\r\n{\r\n\tputs(&quot;hello obj-c world.&quot;);\r\n\r\n\t\/\/ autorelease \u3092\u4f7f\u3063\u305f\u5834\u5408\r\n\tHello *hello = [[[Hello alloc] init] autorelease];\r\n\t[hello setMessage:@&quot;hello objective-c in hello class&quot;];\r\n\t[hello print];\r\n\t\r\n\t\/\/ autorelease \u3092\u4f7f\u308f\u306a\u3044\u5834\u5408\r\n\tHello *hello2 = [[Hello alloc] init];\r\n\t[hello2 setMessage:@&quot;hello objective-c no autorelease&quot;];\r\n\t[hello2 print];\r\n\t[hello2 release];\r\n\t\r\n\treturn 0;\r\n}\r\n\r\nint main(int argc, char *argv[])\r\n{\r\n    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];\r\n    int retVal = _main(argc, argv);\r\n\tNSLog(@&quot;before pool release&quot;);\r\n    [pool release];\t\/\/ \u3053\u3053\u3067\u4e00\u6c17\u306b\u89e3\u653e\u3055\u308c\u308b\r\n\tNSLog(@&quot;after pool release&quot;);\r\n    return retVal;\r\n}\r\n<\/pre>\n
\u5b9f\u884c\u7d50\u679c<\/p>\n
\r\n$ main\r\nhello obj-c world.\r\nhello objective-c in hello class\r\nhello objective-c no autorelease\r\n2011-07-05 15:46:23.484 main[4124] in dealloc\r\n2011-07-05 15:46:23.545 main[4124] before pool release\r\n2011-07-05 15:46:23.545 main[4124] in dealloc\r\n2011-07-05 15:46:23.545 main[4124] after pool release\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
C# \u306e\u30ac\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3068\u540c\u3058\u306a\u306e\u304b\u306a\u3041\u3001\u3068\u601d\u3063\u305f\u3051\u3069\u3001\u52d5\u304d\u7684\u306b\u306f c++ \u306e\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u306b\u8fd1\u3044\u306e\u304b\u306a\u3002 autorelease \u3092\u6307\u5b9a\u3059\u308b\u3068\u3001NSAutoreleasePool \u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u6e9c\u3081\u8fbc\u307e\u308c\u308b\u3088\u3046 … \u7d9a\u304d\u3092\u8aad\u3080 →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3,28],"tags":[],"class_list":["post-2250","post","type-post","status-publish","format-standard","hentry","category-dev","category-objc"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/2250","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/comments?post=2250"}],"version-history":[{"count":1,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/2250\/revisions"}],"predecessor-version":[{"id":2251,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/2250\/revisions\/2251"}],"wp:attachment":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/media?parent=2250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/categories?post=2250"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/tags?post=2250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}