{"id":478456,"date":"2023-08-09T09:33:05","date_gmt":"2023-08-09T09:33:05","guid":{"rendered":""},"modified":"2023-09-05T11:16:48","modified_gmt":"2023-09-05T11:16:48","slug":"pointer","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/pointer\/","title":{"rendered":"\u30dd\u30a4\u30f3\u30bf"},"content":{"rendered":"<p>\u30dd\u30a4\u30f3\u30bf\u3068\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306e\u30e1\u30e2\u30ea\u5185\u306b\u3042\u308b\u5225\u306e\u5024\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u683c\u7d0d\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u6982\u5ff5\u3092\u6307\u3057\u307e\u3059\u3002\u30dd\u30a4\u30f3\u30bf\u30fc\u306f\u3001C\u3001C++ \u306a\u3069\u306e\u3055\u307e\u3056\u307e\u306a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e1\u30e2\u30ea\u3092\u4f7f\u7528\u3057\u305f\u52b9\u7387\u7684\u304b\u3064\u67d4\u8edf\u306a\u64cd\u4f5c\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306a\u3069\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u958b\u767a\u306b\u304a\u3044\u3066\u91cd\u8981\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>\u30dd\u30a4\u30f3\u30bf\u30fc\u306e\u8d77\u6e90\u3068\u305d\u306e\u6700\u521d\u306e\u8a00\u53ca\u306e\u6b74\u53f2<\/h2>\n<p>\u30dd\u30a4\u30f3\u30bf\u306e\u6982\u5ff5\u306f\u3001\u30e1\u30e2\u30ea \u30a2\u30c9\u30ec\u30b9\u3092\u4fdd\u6301\u3059\u308b\u305f\u3081\u306b\u30ec\u30b8\u30b9\u30bf\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u305f\u30a2\u30bb\u30f3\u30d6\u30ea\u8a00\u8a9e\u306b\u307e\u3067\u9061\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 1970 \u5e74\u4ee3\u306b C \u306a\u3069\u306e\u9ad8\u6c34\u6e96\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u304c\u767b\u5834\u3059\u308b\u3068\u3001\u30dd\u30a4\u30f3\u30bf\u30fc\u306f\u3088\u308a\u9855\u8457\u306b\u306a\u308a\u3001\u5e83\u304f\u4f7f\u7528\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002 C \u306e\u4f5c\u6210\u8005\u3067\u3042\u308b\u30c7\u30cb\u30b9 \u30ea\u30c3\u30c1\u30fc\u3068\u30d6\u30e9\u30a4\u30a2\u30f3 \u30ab\u30fc\u30cb\u30cf\u30f3\u306f\u3001\u30e1\u30e2\u30ea\u4f4d\u7f6e\u3078\u306e\u76f4\u63a5\u30a2\u30af\u30bb\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u65b9\u6cd5\u3068\u3057\u3066\u30dd\u30a4\u30f3\u30bf\u3092\u5c0e\u5165\u3057\u307e\u3057\u305f\u3002<\/p>\n<h2>\u30dd\u30a4\u30f3\u30bf\u306e\u8a73\u7d30\uff1a\u30c8\u30d4\u30c3\u30af\u30dd\u30a4\u30f3\u30bf\u306e\u5c55\u958b<\/h2>\n<p>\u30dd\u30a4\u30f3\u30bf\u306f\u3001\u5225\u306e\u5024\u306e\u30e1\u30e2\u30ea \u30a2\u30c9\u30ec\u30b9\u3092\u683c\u7d0d\u3059\u308b\u5909\u6570\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u5909\u6570\u306b\u9593\u63a5\u7684\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u65b9\u6cd5\u3092\u63d0\u4f9b\u3057\u3001\u6574\u6570\u3001\u6587\u5b57\u3001\u3055\u3089\u306b\u306f\u4ed6\u306e\u30dd\u30a4\u30f3\u30bf\u30fc\u306a\u3069\u306e\u3055\u307e\u3056\u307e\u306a\u578b\u3092\u6307\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u5229\u70b9:<\/h3>\n<ul>\n<li><strong>\u52b9\u7387\uff1a<\/strong> \u30dd\u30a4\u30f3\u30bf\u3092\u4f7f\u7528\u3059\u308b\u3068\u30e1\u30e2\u30ea\u3092\u76f4\u63a5\u64cd\u4f5c\u3067\u304d\u308b\u305f\u3081\u3001\u64cd\u4f5c\u304c\u9ad8\u901f\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u52d5\u7684\u30e1\u30e2\u30ea\u5272\u308a\u5f53\u3066:<\/strong> \u30ea\u30f3\u30af\u3055\u308c\u305f\u30ea\u30b9\u30c8\u306e\u3088\u3046\u306a\u52d5\u7684\u306a\u30e1\u30e2\u30ea\u5272\u308a\u5f53\u3066\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u95a2\u6570\u306e\u5f15\u6570:<\/strong> \u30dd\u30a4\u30f3\u30bf\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u5927\u304d\u306a\u69cb\u9020\u4f53\u3092\u52b9\u7387\u7684\u306b\u95a2\u6570\u306b\u6e21\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3>\u77ed\u6240:<\/h3>\n<ul>\n<li><strong>\u8907\u96d1\uff1a<\/strong> \u30dd\u30a4\u30f3\u30bf\u3092\u8aa4\u3063\u3066\u4f7f\u7528\u3059\u308b\u3068\u3001\u8907\u96d1\u306a\u30d0\u30b0\u3084\u30e1\u30e2\u30ea \u30ea\u30fc\u30af\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af:<\/strong> \u30dd\u30a4\u30f3\u30bf\u306f\u30e1\u30e2\u30ea\u3078\u306e\u4f4e\u30ec\u30d9\u30eb\u306e\u30a2\u30af\u30bb\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u3001\u60aa\u7528\u3059\u308b\u3068\u8106\u5f31\u6027\u304c\u751f\u3058\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u30dd\u30a4\u30f3\u30bf\u306e\u5185\u90e8\u69cb\u9020: \u30dd\u30a4\u30f3\u30bf\u306e\u4ed5\u7d44\u307f<\/h2>\n<p>\u30dd\u30a4\u30f3\u30bf\u5909\u6570\u306f\u30e1\u30e2\u30ea\u30a2\u30c9\u30ec\u30b9\u3092\u4fdd\u6301\u3057\u307e\u3059\u3002\u901a\u5e38\u3001\u3053\u306e\u30a2\u30c9\u30ec\u30b9\u306f\u5225\u306e\u5909\u6570\u306e\u5834\u6240\u3092\u6307\u3057\u307e\u3059\u3002\u30dd\u30a4\u30f3\u30bf\u30fc\u306f\u7279\u5b9a\u306e\u578b\u3092\u4f7f\u7528\u3057\u3066\u5ba3\u8a00\u3055\u308c\u3001\u305d\u308c\u304c\u6307\u3059\u5024\u306e\u7a2e\u985e\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li><strong>\u5ba3\u8a00\uff1a<\/strong> <code data-no-translation=\"\">int *p;<\/code> \u6574\u6570\u3078\u306e\u30dd\u30a4\u30f3\u30bf\u3092\u5ba3\u8a00\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u521d\u671f\u5316:<\/strong> <code data-no-translation=\"\">p = &amp;x;<\/code> \u5909\u6570\u306e\u30a2\u30c9\u30ec\u30b9\u3067\u30dd\u30a4\u30f3\u30bf\u3092\u521d\u671f\u5316\u3057\u307e\u3059 <code data-no-translation=\"\">x<\/code>.<\/li>\n<li><strong>\u9006\u53c2\u7167:<\/strong> <code data-no-translation=\"\">*p<\/code> \u30dd\u30a4\u30f3\u30bf\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30a2\u30c9\u30ec\u30b9\u306e\u5024\u306b\u30a2\u30af\u30bb\u30b9\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n<h2>\u30dd\u30a4\u30f3\u30bf\u30fc\u306e\u4e3b\u306a\u6a5f\u80fd\u306e\u5206\u6790<\/h2>\n<p>\u30dd\u30a4\u30f3\u30bf\u30fc\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u4e0d\u53ef\u6b20\u306a\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30e1\u30e2\u30ea\u30a2\u30c9\u30ec\u30b9\u30b9\u30c8\u30ec\u30fc\u30b8:<\/strong> \u5909\u6570\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u683c\u7d0d\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30e1\u30e2\u30ea\u64cd\u4f5c:<\/strong> \u30e1\u30e2\u30ea\u4f4d\u7f6e\u3078\u306e\u76f4\u63a5\u30a2\u30af\u30bb\u30b9\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30c7\u30fc\u30bf\u69cb\u9020:<\/strong> \u30c4\u30ea\u30fc\u3084\u30ea\u30f3\u30af \u30ea\u30b9\u30c8\u306a\u3069\u306e\u8907\u96d1\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u5bb9\u6613\u306b\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u95a2\u6570\u30dd\u30a4\u30f3\u30bf\u30fc:<\/strong> \u95a2\u6570\u3092\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u3066\u6e21\u3059\u3053\u3068\u3092\u8a31\u53ef\u3057\u3001\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3068\u9ad8\u968e\u95a2\u6570\u3092\u6709\u52b9\u306b\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u30dd\u30a4\u30f3\u30bf\u306e\u7a2e\u985e: \u30c6\u30fc\u30d6\u30eb\u3068\u30ea\u30b9\u30c8\u3092\u4f7f\u7528\u3059\u308b<\/h2>\n<p>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u4f7f\u7528\u3055\u308c\u308b\u30dd\u30a4\u30f3\u30bf\u30fc\u306e\u3044\u304f\u3064\u304b\u306e\u30bf\u30a4\u30d7\u3092\u6b21\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30dd\u30a4\u30f3\u30bf\u306e\u57fa\u672c\u7684\u306a\u7a2e\u985e<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u30bf\u30a4\u30d7<\/th>\n<th>\u8aac\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30b8\u30a7\u30cd\u30ea\u30c3\u30af<\/td>\n<td>\u7279\u5b9a\u306e\u578b\u3092\u6301\u305f\u306a\u3044\u30dd\u30a4\u30f3\u30bf\u30fc (\u4f8b: <code data-no-translation=\"\">void *ptr;<\/code>)<\/td>\n<\/tr>\n<tr>\n<td>\u5165\u529b\u6e08\u307f<\/td>\n<td>\u7279\u5b9a\u306e\u30bf\u30a4\u30d7\u3092\u6307\u3057\u307e\u3059 (\u4f8b: <code data-no-translation=\"\">int *ptr;<\/code>)<\/td>\n<\/tr>\n<tr>\n<td>\u30cc\u30eb<\/td>\n<td>\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u3055\u306a\u3044\u30dd\u30a4\u30f3\u30bf<\/td>\n<\/tr>\n<tr>\n<td>\u91ce\u751f<\/td>\n<td>\u521d\u671f\u5316\u3055\u308c\u3066\u3044\u306a\u3044\u3001\u307e\u305f\u306f\u4e0d\u9069\u5207\u306b\u4f7f\u7528\u3055\u308c\u305f\u30dd\u30a4\u30f3\u30bf\u30fc<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u6d3e\u751f\u578b<\/h3>\n<ul>\n<li><strong>\u30dd\u30a4\u30f3\u30bf\u304b\u3089\u30dd\u30a4\u30f3\u30bf\u3078:<\/strong> \u5225\u306e\u30dd\u30a4\u30f3\u30bf\u30fc\u3092\u6307\u3059\u30dd\u30a4\u30f3\u30bf\u30fc\u3002<\/li>\n<li><strong>\u95a2\u6570\u30dd\u30a4\u30f3\u30bf:<\/strong> \u95a2\u6570\u3092\u6307\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30dd\u30a4\u30f3\u30bf\u306e\u914d\u5217:<\/strong> \u30dd\u30a4\u30f3\u30bf\u30fc\u5909\u6570\u3092\u542b\u3080\u914d\u5217\u3002<\/li>\n<\/ul>\n<h2>\u30dd\u30a4\u30f3\u30bf\u306e\u4f7f\u3044\u65b9\u3068\u4f7f\u7528\u306b\u95a2\u308f\u308b\u554f\u984c\u70b9\u3068\u305d\u306e\u89e3\u6c7a\u7b56<\/h2>\n<p>\u30dd\u30a4\u30f3\u30bf\u306f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u6b21\u306e\u3088\u3046\u306a\u8ab2\u984c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u7528\u9014:<\/h3>\n<ul>\n<li><strong>\u52d5\u7684\u30e1\u30e2\u30ea\u7ba1\u7406:<\/strong> \u67d4\u8edf\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u306e\u4f5c\u6210\u3002<\/li>\n<li><strong>\u95a2\u6570\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u53d7\u3051\u6e21\u3057:<\/strong> \u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u52b9\u7387\u7684\u306b\u53d7\u3051\u6e21\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3>\u554f\u984c\u3068\u89e3\u6c7a\u7b56:<\/h3>\n<ul>\n<li><strong>\u3076\u3089\u4e0b\u304c\u3063\u3066\u3044\u308b\u30dd\u30a4\u30f3\u30bf\u30fc:<\/strong> \u89e3\u653e\u3055\u308c\u305f\u30e1\u30e2\u30ea\u4f4d\u7f6e\u3092\u6307\u3059\u30dd\u30a4\u30f3\u30bf\u3002 <strong>\u89e3\u6c7a\uff1a<\/strong> \u89e3\u653e\u5f8c\u306b\u30dd\u30a4\u30f3\u30bf\u3092 NULL \u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30e1\u30e2\u30ea\u30ea\u30fc\u30af:<\/strong> \u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u30e1\u30e2\u30ea\u306e\u89e3\u653e\u306b\u5931\u6557\u3057\u307e\u3057\u305f\u3002 <strong>\u89e3\u6c7a\uff1a<\/strong> \u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u30e1\u30e2\u30ea\u3092\u9069\u5207\u306b\u89e3\u653e\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u4e3b\u306a\u7279\u5fb4\u3068\u985e\u4f3c\u7528\u8a9e\u3068\u306e\u6bd4\u8f03<\/h2>\n<p>\u30dd\u30a4\u30f3\u30bf\u3068\u53c2\u7167\u304a\u3088\u3073\u4ed6\u306e\u540c\u69d8\u306e\u7528\u8a9e\u3092\u6bd4\u8f03\u3057\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5b66\u671f<\/th>\n<th>\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9<\/th>\n<th>\u518d\u5272\u308a\u5f53\u3066\u53ef\u80fd<\/th>\n<th>Null \u3092\u8a31\u53ef\u3059\u308b<\/th>\n<th>\u69cb\u6587<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30dd\u30a4\u30f3\u30bf<\/td>\n<td>\u9593\u63a5\u7684<\/td>\n<td>\u306f\u3044<\/td>\n<td>\u306f\u3044<\/td>\n<td><code data-no-translation=\"\">int *p;<\/code><\/td>\n<\/tr>\n<tr>\n<td>\u53c2\u7167<\/td>\n<td>\u76f4\u63a5<\/td>\n<td>\u3044\u3044\u3048<\/td>\n<td>\u3044\u3044\u3048<\/td>\n<td><code data-no-translation=\"\">int &amp;r = x;<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u30dd\u30a4\u30f3\u30bf\u306e\u672a\u6765\u3078\u306e\u5c55\u671b\u3068\u6280\u8853<\/h2>\n<p>\u30dd\u30a4\u30f3\u30bf\u306e\u6982\u5ff5\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0 \u30d1\u30e9\u30c0\u30a4\u30e0\u3068\u5b89\u5168\u6027\u306e\u8003\u616e\u4e8b\u9805\u3068\u3068\u3082\u306b\u9032\u5316\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30b9\u30de\u30fc\u30c8 \u30dd\u30a4\u30f3\u30bf\u30fc:<\/strong> C++11 \u306a\u3069\u306e\u6700\u65b0\u8a00\u8a9e\u3067\u306f\u3001\u30e1\u30e2\u30ea\u3092\u81ea\u52d5\u7684\u306b\u7ba1\u7406\u3059\u308b\u30b9\u30de\u30fc\u30c8 \u30dd\u30a4\u30f3\u30bf\u30fc\u304c\u5c0e\u5165\u3055\u308c\u307e\u3057\u305f\u3002<\/li>\n<li><strong>\u5b89\u5168\u5bfe\u7b56:<\/strong> Rust \u306e\u3088\u3046\u306a\u8a00\u8a9e\u3067\u306f\u3001\u4e00\u822c\u7684\u306a\u30dd\u30a4\u30f3\u30bf \u30a8\u30e9\u30fc\u3092\u9632\u3050\u305f\u3081\u306b\u53b3\u683c\u306a\u30eb\u30fc\u30eb\u304c\u63a1\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><strong>\u4f7f\u7528\u91cf\u306e\u6e1b\u5c11:<\/strong> Python \u3084 Java \u306a\u3069\u306e\u9ad8\u7d1a\u8a00\u8a9e\u306f\u3001\u5358\u7d14\u3055\u3068\u5b89\u5168\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u76f4\u63a5\u30dd\u30a4\u30f3\u30bf\u30fc\u64cd\u4f5c\u3092\u62bd\u8c61\u5316\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306e\u4f7f\u7528\u65b9\u6cd5\u307e\u305f\u306f\u30dd\u30a4\u30f3\u30bf\u3068\u306e\u95a2\u9023\u4ed8\u3051\u65b9\u6cd5<\/h2>\n<p>OneProxy \u306e\u3088\u3046\u306a\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306e\u958b\u767a\u3067\u306f\u3001\u30dd\u30a4\u30f3\u30bf\u304c\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30e1\u30e2\u30ea\u52b9\u7387:<\/strong> \u30dd\u30a4\u30f3\u30bf\u30fc\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u63a5\u7d9a\u3068\u30c7\u30fc\u30bf \u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0\u3092\u52b9\u7387\u7684\u306b\u51e6\u7406\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u52d5\u7684\u69cb\u6210:<\/strong> \u3053\u308c\u3089\u306b\u3088\u308a\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u63a5\u7d9a\u51e6\u7406\u306b\u5bfe\u3059\u308b\u67d4\u8edf\u306a\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306e\u8abf\u6574\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u4f4e\u30ec\u30d9\u30eb\u306e\u64cd\u4f5c:<\/strong> \u30dd\u30a4\u30f3\u30bf\u30fc\u306f\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u7cbe\u5ea6\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.tutorialspoint.com\/cprogramming\/c_pointers.htm\" target=\"_new\" rel=\"noopener nofollow\">C \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0 \u30dd\u30a4\u30f3\u30bf\u30fc\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb<\/a><\/li>\n<li><a href=\"https:\/\/en.cppreference.com\/w\/cpp\/memory\" target=\"_new\" rel=\"noopener nofollow\">C++ \u30b9\u30de\u30fc\u30c8 \u30dd\u30a4\u30f3\u30bf\u30fc<\/a><\/li>\n<li><a href=\"https:\/\/doc.rust-lang.org\/book\/ch04-02-references-and-borrowing.html\" target=\"_new\" rel=\"noopener nofollow\">Rust\u306e\u30dd\u30a4\u30f3\u30bf\u3092\u7406\u89e3\u3059\u308b<\/a><\/li>\n<\/ul>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30dd\u30a4\u30f3\u30bf\u30fc\u306e\u6b74\u53f2\u3068\u6a5f\u80fd\u304b\u3089\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306a\u3069\u306e\u7279\u6b8a\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u4f7f\u7528\u307e\u3067\u3001\u30dd\u30a4\u30f3\u30bf\u30fc\u306e\u5305\u62ec\u7684\u306a\u6982\u8981\u3092\u8aac\u660e\u3057\u307e\u3059\u3002\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u304c\u9032\u6b69\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u30dd\u30a4\u30f3\u30bf\u30fc\u306e\u6982\u5ff5\u306f\u9069\u5fdc\u3057\u7d9a\u3051\u3001\u73fe\u4ee3\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u30c4\u30fc\u30eb\u3067\u3042\u308a\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002<\/p>","protected":false},"featured_media":469181,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-478456","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Pointer<\/mark>","faq_items":[{"question":"What is a Pointer in programming?","answer":"<p>A Pointer is a variable that stores the memory address of another value in a computer's memory. It's used to provide direct access to memory locations and is an essential concept in various programming languages like C and C++.<\/p>"},{"question":"What are the main advantages and disadvantages of using pointers?","answer":"<p>The main advantages of pointers include efficiency in memory manipulation, enabling dynamic memory allocation, and efficient passing of function arguments. Disadvantages include complexity in use, potential security risks, and vulnerability to bugs like memory leaks.<\/p>"},{"question":"What are the different types of pointers?","answer":"<p>There are basic types of pointers such as generic, typed, null, and wild pointers. Derived types include pointers to pointers, function pointers, and arrays of pointers.<\/p>"},{"question":"How do pointers work?","answer":"<p>Pointers hold a memory address that points to the location of another variable. They are declared, initialized, and dereferenced to access the value at the stored address.<\/p>"},{"question":"What are some common problems with pointers, and how can they be solved?","answer":"<p>Common problems with pointers include dangling pointers and memory leaks. Solutions involve setting pointers to NULL after freeing them and properly releasing allocated memory.<\/p>"},{"question":"How are pointers used in proxy servers like OneProxy?","answer":"<p>In proxy servers, pointers play a key role in memory efficiency, dynamic configuration, and low-level operations. They allow for efficient handling of connections, flexible adjustments to routing, and optimized performance and security.<\/p>"},{"question":"What are the future perspectives and technologies related to pointers?","answer":"<p>The future of pointers includes the introduction of smart pointers, which automatically manage memory, safety measures in languages like Rust, and a trend toward decreased usage in high-level languages for simplicity and safety.<\/p>"},{"question":"How do pointers compare with similar terms like references?","answer":"<p>Pointers provide indirect memory access and can be reassigned, while references provide direct access and cannot be reassigned. Pointers allow null values, but references do not. The syntax for pointers (e.g., <code>int *p;<\/code>) differs from that of references (e.g., <code>int &amp;r = x;<\/code>).<\/p>"},{"question":"Where can I find more information about pointers?","answer":"<p>You can find more detailed information about pointers through various online resources like <a href=\"https:\/\/www.tutorialspoint.com\/cprogramming\/c_pointers.htm\" target=\"_new\">C Programming Pointers Tutorial<\/a>, <a href=\"https:\/\/en.cppreference.com\/w\/cpp\/memory\" target=\"_new\">C++ Smart Pointers<\/a>, and <a href=\"https:\/\/doc.rust-lang.org\/book\/ch04-02-references-and-borrowing.html\" target=\"_new\">Understanding Pointers in Rust<\/a>.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/478456","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/478456\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/469181"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=478456"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}