{"id":7059,"date":"2026-07-02T08:30:00","date_gmt":"2026-07-01T23:30:00","guid":{"rendered":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/?page_id=7059"},"modified":"2026-06-30T14:37:33","modified_gmt":"2026-06-30T05:37:33","slug":"ex1204","status":"publish","type":"page","link":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/lecture\/prog\/exercise\/ex12\/ex1204\/","title":{"rendered":"\u8ab2\u984c [12] \u30dd\u30a4\u30f3\u30bf\u2461\uff084\/9\uff09"},"content":{"rendered":"<div class=\"breadcrumbs align wp-block-bcn-breadcrumb-trail has-text-color has-background\" vocab=\"https:\/\/schema.org\/\" typeof=\"BreadcrumbList\">\n\t<span><\/span>\n\t<span property=\"itemListElement\" typeof=\"ListItem\"><a property=\"item\" typeof=\"WebPage\" title=\"Go to \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5de5\u5b66\u7814\u7a76\u5ba4.\" href=\"https:\/\/se.cite.ehime-u.ac.jp\/jp\" class=\"home\" aria-current=\"page\"><span property=\"name\">\u30db\u30fc\u30e0<\/span><\/a><meta property=\"position\" content=\"1\"><\/span><\/div>\n\n\n\n<h4 class=\"wp-block-heading has-background\" style=\"background-color:#d3f28c\"><strong>\u554f 4<\/strong>\uff08\u63d0\u51fa\u30d7\u30ed\u30b0\u30e9\u30e0\u540d\uff1aex1204.c\uff09<\/h4>\n\n\n\n<p class=\"problem wp-block-paragraph\"><a href=\"http:\/\/se.cite.ehime-u.ac.jp\/lecture\/prog\/material\/ex1204.c\" target=\"_blank\" rel=\"noreferrer noopener\">\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\uff08ex1204.c\uff09<\/a>\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\uff0c\u305d\u306e\u4e2d\u306e<strong><span class=\"tadv-color\" style=\"color:#0000ff\">\u95a2\u6570 <kbd>letter_change_copy<\/kbd> \u3092\u5b8c\u6210\u3055\u305b\u306a\u3055\u3044<\/span><\/strong>\uff0e\u305f\u3060\u3057\uff0c\u3053\u306e\u554f\u984c\u3067\u306f\u8b1b\u7fa9\u3067\u7d39\u4ecb\u3057\u305f <strong><span class=\"tadv-background-color\" style=\"background-color:#a2ff00\"><kbd>strcpy<\/kbd> \u3092\u4f7f\u3063\u3066\u306f\u3044\u3051\u307e\u305b\u3093<\/span><\/strong>\uff0e<br>\u306a\u304a\uff0c\u5165\u529b\u3055\u308c\u308b\u6587\u5b57\u5217\u306f\u3059\u3079\u3066\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u3067\u3042\u308b\u3068\u4eee\u5b9a\u3057\u3066\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u3063\u3066\u3088\u3044\u3082\u306e\u3068\u3059\u308b\uff0e<br><br><strong>\u3010\u95a2\u6570 <kbd>letter_change_copy<\/kbd> \u306e\u4ed5\u69d8\u3011<\/strong><br>\u5f15\u6570\u3067\u4e0e\u3048\u3089\u308c\u305f\u30dd\u30a4\u30f3\u30bf <kbd>to<\/kbd> \u3068 <kbd>from<\/kbd> \u3092\u4f7f\u3044\uff0c<br><strong><span class=\"tadv-color\" style=\"color:#0000ff\">\u30dd\u30a4\u30f3\u30bf <kbd>from<\/kbd> \u304c\u53c2\u7167\u3057\u3066\u3044\u308b\u6587\u5b57\u5217\uff08char \u914d\u5217\uff09<\/span><\/strong>\u3092<br><strong><span class=\"tadv-color\" style=\"color:#ff0000\">\u30dd\u30a4\u30f3\u30bf <kbd>to<\/kbd> \u304c\u53c2\u7167\u3057\u3066\u3044\u308b char \u914d\u5217\u3078\u5148\u982d\u304b\u3089 1 \u6587\u5b57\u305a\u3064\u672b\u5c3e\u307e\u3067\u30b3\u30d4\u30fc\u3059\u308b<\/span><\/strong>\uff0e<br>\u305f\u3060\u3057\uff0c\u305d\u306e\u969b\u306b\u306f<strong><span class=\"tadv-color\" style=\"color:#ff0000\">\u5927\u6587\u5b57\u306f\u5c0f\u6587\u5b57\u3078\u5909\u63db\u3057\u3066<\/span><\/strong>\uff0c\u9006\u306b<strong><span class=\"tadv-color\" style=\"color:#ff0000\">\u5c0f\u6587\u5b57\u306f\u5927\u6587\u5b57\u3078\u5909\u63db\u3057\u3066<\/span><\/strong>\u30b3\u30d4\u30fc\u3059\u308b\uff0e<br>\u3000\u3000<kbd><span class=\"tadv-color\" style=\"color:#ff0000\">to<\/span><\/kbd>\uff1a<span class=\"tadv-color\" style=\"color:#ff0000\"><strong>\u30b3\u30d4\u30fc\u5148<\/strong><\/span>\u306e char \u914d\u5217\u3092\u53c2\u7167\u3059\u308b\u30dd\u30a4\u30f3\u30bf<br>\u3000\u3000<kbd><span class=\"tadv-color\" style=\"color:#0000ff\">from<\/span><\/kbd>\uff1a<strong><span class=\"tadv-color\" style=\"color:#0000ff\">\u30b3\u30d4\u30fc\u5143<\/span><\/strong>\u306e char \u914d\u5217\u3092\u53c2\u7167\u3059\u308b\u30dd\u30a4\u30f3\u30bf<br>\u306a\u304a\uff0c<kbd>to<\/kbd> \u3078 <mark style=\"background-color:#e4fffa\" class=\"has-inline-color\">1 \u6587\u5b57\u305a\u3064\u30b3\u30d4\u30fc\u3057\u7d42\u308f\u3063\u305f\u5f8c\u306b\uff0c<\/mark><strong><mark style=\"background-color:#e4fffa\" class=\"has-inline-color has-red-color\"><kbd>\u30ca\u30eb\u6587\u5b57\uff08'\\0'<\/kbd><\/mark><\/strong><mark style=\"background-color:#e4fffa\" class=\"has-inline-color has-red-color\">\uff09<\/mark><strong><mark style=\"background-color:#e4fffa\" class=\"has-inline-color has-red-color\">\u3092\u66f8\u304d\u8fbc\u3080\u306e\u3082\u5fd8\u308c\u306a\u3044<\/mark><\/strong>\u3053\u3068\uff0e<br>\u3053\u308c\u3092\u5fd8\u308c\u308b\u3068 <kbd>to<\/kbd> \u306e\u65b9\u306f\u6587\u5b57\u5217\u3068\u3057\u3066\u306e\u7d42\u308f\u308a\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u3053\u3068\u306b\u306a\u308a\uff0c\u8868\u793a\u3067\u6587\u5b57\u5316\u3051\u304c<br>\u8d77\u3053\u3063\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308b\uff0e<br><br><strong>\u3010\u6ce8\u610f\u3011<\/strong><br>\u3053\u306e\u554f\u984c\u3067\u306f<span class=\"tadv-background-color\" style=\"background-color:#ffeb00\"><strong>\u95a2\u6570 <kbd>main<\/kbd> \u306e\u5185\u5bb9\u306f\u4e00\u5207\u66f8\u304d\u63db\u3048\u306a\u3044<\/strong><\/span>\u3053\u3068\uff0e <br>\u3042\u308f\u305b\u3066\uff0c\u95a2\u6570 <strong><span class=\"tadv-color\" style=\"color:#ff0000\"><kbd>strcpy<\/kbd> \u3092\u4f7f\u3063\u3066\u306f\u3044\u3051\u307e\u305b\u3093<\/span><\/strong>\uff0e<\/p>\n\n\n\n<p class=\"hint wp-block-paragraph\"><strong>\u3010\u30d2\u30f3\u30c8\u3011<br><\/strong>\u3042\u308b\u6587\u5b57\uff081\u6587\u5b57\uff09\u304c\u5927\u6587\u5b57\u304b\u3069\u3046\u304b\u30fb\u5c0f\u6587\u5b57\u304b\u3069\u3046\u304b\u306f\u305d\u308c\u305e\u308c<br>\u4ee5\u524d\u5b66\u3093\u3060\u95a2\u6570 <kbd>isupper<\/kbd>, <kbd>islower<\/kbd> \u3067\u5224\u5b9a\u3067\u304d\u307e\u3059\uff0e<br>\u307e\u305f\uff0c\u5927\u6587\u5b57\u3078\u306e\u5909\u63db\u3068\u5c0f\u6587\u5b57\u3078\u306e\u5909\u63db\u3082\u305d\u308c\u305e\u308c\u95a2\u6570 <kbd>toupper<\/kbd>, <kbd>tolower<\/kbd> \u3067\u884c\u3048\u307e\u3059\uff0e<br>\u5fd8\u308c\u3066\u3057\u307e\u3063\u3066\u3044\u308b\u3088\u3046\u3067\u3042\u308c\u3070\u300c\u6587\u5b57\u5217\u300d\u306e\u56de\u306e\u8b1b\u7fa9\u8cc7\u6599\u3084\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u898b\u76f4\u3057\u3066\u307f\u307e\u3057\u3087\u3046\uff0e<\/p>\n\n\n\n<p class=\"hint wp-block-paragraph\"><strong>\u3010\u4f8b\u5e74\u3088\u304f\u3042\u308b\u30df\u30b9\u3011<\/strong><br>\uff08\u305d\u306e\uff11\uff09<strong><span class=\"tadv-color\" style=\"color:#ff0000\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-strong-blue-color\">\u30b3\u30d4\u30fc\u5148\u306e\u672b\u5c3e\u306b\u30ca\u30eb\u6587\u5b57\uff08<kbd>'\\0'<\/kbd>\uff09\u3092\u66f8\u304d\u8fbc\u3080\u306e\u3092\u5fd8\u308c\u308b<\/mark><\/span><\/strong>\u4eba\u304c\u3044\u307e\u3059\uff0e<br>\uff08\u305d\u306e\uff12\uff09\u4ed5\u69d8\u3092\u52d8\u9055\u3044\u3057\u3066\uff0c<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-strong-blue-color\"><kbd>letter_change_copy<\/kbd> \u306e\u4e2d\u306b <kbd>printf<\/kbd> \u3092\u66f8\u3044\u3066\u3057\u307e\u3046<\/mark><\/strong>\u4eba\u304c\u3044\u307e\u3059\uff0e<br>\uff08\u305d\u306e\uff13\uff09<kbd>for ( i = 0; <mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\">i &lt; SIZE<\/mark>; i++ )<\/kbd> \u3068\u3044\u3063\u305f\u7e70\u308a\u8fd4\u3057\u3067<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\">\u914d\u5217\u5168\u4f53\u3092\u30b3\u30d4\u30fc<\/mark><\/strong>\u3057\u3088\u3046\u3068\u3059\u308b\u4eba\u304c\u3044\u307e\u3059\u304c\uff0c\u305d\u308c\u306f<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\">\u7121\u99c4<\/mark><\/strong>\u3067\u3059\uff0e\u3053\u3053\u3067\u6271\u3063\u3066\u3044\u308b\u306e\u306f<strong>\u6587\u5b57\u5217<\/strong>\u3067\u3042\u308b\u305f\u3081\uff0c<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-strong-blue-color\">\u5148\u982d\u304b\u3089\u30ca\u30eb\u6587\u5b57\u307e\u3067\u3092\u30b3\u30d4\u30fc\u3059\u308c\u3070\u5341\u5206<\/mark><\/strong>\u3067\u3059\uff0e<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u3010\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u7d50\u679c\u3011\uff08\u305d\u306e\uff11\uff09<\/strong>\u203b<mark style=\"background-color:rgba(0, 0, 0, 0);color:#ff0000\" class=\"has-inline-color\">\u8d64\u5b57<\/mark>\u306f\u5b9f\u884c\u6642\u306b\u30ad\u30fc\u30dc\u30fc\u30c9\u304b\u3089\u5165\u529b\u3059\u308b\u5185\u5bb9<br><mark style=\"background-color:#ffe200\" class=\"has-inline-color\">\u30b3\u30d4\u30fc\u64cd\u4f5c\u306e\u6700\u5f8c\u3067 <\/mark><strong><mark style=\"background-color:#ffe200\" class=\"has-inline-color has-red-color\"><kbd>to<\/kbd> \u306e\u672b\u5c3e\u306b <kbd>'\\0'<\/kbd> \u3092\u66f8\u304d\u8fbc\u3093\u3067\u3044\u306a\u3044<\/mark><\/strong><mark style=\"background-color:#ffe200\" class=\"has-inline-color\">\u3068\u30b3\u30d4\u30fc\u5148\u6587\u5b57\u5217\u306e\u51fa\u529b\u306b\u304a\u3044\u3066\uff0c<\/mark><mark style=\"background-color:#ffe200\" class=\"has-inline-color has-red-color\"><strong> <kbd>&gt;<\/kbd> \u306e\u5de6\u3067\u6587\u5b57\u5316\u3051\u304c\u8d77\u3053\u308b\u3053\u3068\u304c\u3042\u308b\u306e\u3067\u6ce8\u610f<\/strong><\/mark><mark style=\"background-color:#ffe200\" class=\"has-inline-color\">\u305b\u3088\uff0e\u6587\u5b57\u5316\u3051\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u63d0\u51fa\u3057\u306a\u3044\u3053\u3068\uff01<\/mark><\/li>\n<\/ul>\n\n\n\n<pre class=\"example\" style=\"width: 400px; margin-top: -15pt; margin-bottom: 10px\">\u6587\u5b57\u5217\u3092 1 \u3064\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<span style=\"color:#ff0000\" class=\"has-inline-color\">EhimeUniv<\/span>\n\u30b3\u30d4\u30fc\u5143\u306e\u6587\u5b57\u5217\uff1a&lt;EhimeUniv&gt;<span style=\"color:#00aa00\">\u23ce<\/span>\n\u30b3\u30d4\u30fc\u5148\u306e\u6587\u5b57\u5217\uff1a&lt;eHIMEuNIV&gt;<span style=\"color:#00aa00\">\u23ce<\/span>\n\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u3010\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u7d50\u679c\u3011\uff08\u305d\u306e\uff12\uff09<\/strong>\u203b<span style=\"color:#ff0000\" class=\"has-inline-color\">\u8d64\u5b57<\/span>\u306f\u5b9f\u884c\u6642\u306b\u30ad\u30fc\u30dc\u30fc\u30c9\u304b\u3089\u5165\u529b\u3059\u308b\u5185\u5bb9<\/li>\n<\/ul>\n\n\n\n<pre class=\"example\" style=\"width: 400px; margin-top: -15pt; margin-bottom: 10px\">\u6587\u5b57\u5217\u3092 1 \u3064\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<span style=\"color:#ff0000\" class=\"has-inline-color\">Moodle<\/span>\n\u30b3\u30d4\u30fc\u5143\u306e\u6587\u5b57\u5217\uff1a&lt;Moodle&gt;<span style=\"color:#00aa00\">\u23ce<\/span>\n\u30b3\u30d4\u30fc\u5148\u306e\u6587\u5b57\u5217\uff1a&lt;mOODLE&gt;<span style=\"color:#00aa00\">\u23ce<\/span>\n\n<\/pre>\n\n\n\n<p class=\"miss wp-block-paragraph\"><strong>\u3010\u904e\u53bb\u306b\u3042\u3063\u305f\u30df\u30b9\uff08\u5b9f\u969b\u306b\u6e1b\u70b9\u3068\u306a\u308a\uff0c\u3084\u308a\u76f4\u3057\u3092\u547d\u3058\u3089\u308c\u305f\u4f8b\uff09\u3011<\/strong><br> \u25a0 <strong>\u5b9f\u884c\u306e<span class=\"tadv-color\" style=\"color:#ff0000\">\u753b\u9762\u51fa\u529b\u304c\u4e0a\u306e\u4f8b\u3068\u9055\u3046<\/span><\/strong>\uff08<strong><span class=\"tadv-color\" style=\"color:#0000ff\">\u304d\u3061\u3093\u3068\u78ba\u8a8d\u3057\u3066\u3044\u306a\u3044<\/span><\/strong>\uff09\uff0e<br>\u3000\uff08\u4f8b\uff11\uff09\u30b3\u30d4\u30fc\u5148\u304c<strong>\u30b3\u30d4\u30fc\u5143\u3068\u5168\u304f\u540c\u3058<\/strong>\u306b\u306a\u3063\u3066\u3044\u308b\uff0e<br>\u3000\uff08\u4f8b\uff12\uff09\u30b3\u30d4\u30fc\u5148\u306e<strong><span class=\"tadv-color\" style=\"color:#ff0000\">\u672b\u5c3e\u306b\u30ca\u30eb\u6587\u5b57\uff08<kbd>'\\0'<\/kbd>\uff09\u3092\u66f8\u304d\u5fd8\u308c\u3066<\/span><\/strong>\u3044\u3066\u6587\u5b57\u5316\u3051\u304c\u8d77\u3053\u3063\u3066\u3044\u308b\uff0e<br> \u25a0 <strong><span class=\"tadv-color\" style=\"color:#0000ff\">main \u95a2\u6570\u3092\u66f8\u304d\u63db\u3048\u3066<\/span><\/strong>\u3057\u307e\u3063\u3066\u3044\u308b\uff0e<br> \u25a0 <strong><span class=\"tadv-color\" style=\"color:#0000ff\">\u30a4\u30f3\u30c7\u30f3\u30c8\u306b\u4e0d\u5099<\/span><\/strong>\u304c\u3042\u308b\uff08<a rel=\"noreferrer noopener\" href=\"https:\/\/se.cite.ehime-u.ac.jp\/jp\/lecture\/prog\/vscode-%e4%b8%8a%e3%81%a7%e3%82%a4%e3%83%b3%e3%83%87%e3%83%b3%e3%83%88%e3%82%92%e8%87%aa%e5%8b%95%e3%81%a7%e6%8f%83%e3%81%88%e3%82%8b%e6%96%b9%e6%b3%95\/\" target=\"_blank\">VSCode \u4e0a\u3067\u30a4\u30f3\u30c7\u30f3\u30c8\u3092\u81ea\u52d5\u3067\u63c3\u3048\u308b\u4f5c\u696d<\/a>\u3092\u3084\u3063\u3066\u3044\u306a\u3044\uff09\uff0e<\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-very-dark-gray-color has-css-opacity has-very-dark-gray-background-color has-background is-style-wide\"\/>\n\n\n\n<p class=\"has-text-align-right wp-block-paragraph\"><strong>\u30df\u30b9\u304c\u7121\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u305f\u3089<\/strong>\u6b21\u306e\u554f\u984c\u3078 \u2192 [ <a href=\"https:\/\/se.cite.ehime-u.ac.jp\/jp\/lecture\/prog\/exercise\/ex12\/ex1205\/\">\u554f5 (ex1205.c)<\/a> ]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u554f 4\uff08\u63d0\u51fa\u30d7\u30ed\u30b0\u30e9\u30e0\u540d\uff1aex1204.c\uff09 \u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\uff08ex1204.c\uff09\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\uff0c\u305d\u306e\u4e2d\u306e\u95a2\u6570 letter_change_copy \u3092\u5b8c\u6210\u3055\u305b\u306a\u3055\u3044\uff0e\u305f\u3060\u3057\uff0c\u3053\u306e\u554f\u984c\u3067\u306f\u8b1b\u7fa9\u3067\u7d39\u4ecb\u3057\u305f strcpy \u3092 <a class=\"more-link\" href=\"https:\/\/se.cite.ehime-u.ac.jp\/jp\/lecture\/prog\/exercise\/ex12\/ex1204\/\">&#8230; more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2215,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-7059","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages\/7059","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/comments?post=7059"}],"version-history":[{"count":23,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages\/7059\/revisions"}],"predecessor-version":[{"id":12795,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages\/7059\/revisions\/12795"}],"up":[{"embeddable":true,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages\/2215"}],"wp:attachment":[{"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/media?parent=7059"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}