回答編集履歴
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#include を追加
answer
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@@ -1,5 +1,9 @@
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# Shift-JIS
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```cpp
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#include <iostream>
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#include <fstream>
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#include <string>
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ifstream ifs("shift-jis.txt");
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string str((istreambuf_iterator<char>(ifs)), istreambuf_iterator<char>());
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@@ -8,6 +12,11 @@
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# UTF-8(BOMなし）
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```cpp
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#include <iostream>
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#include <fstream>
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#include <string>
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#include <codecvt>
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setlocale(LC_ALL, "");
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wifstream ifs("UTF-8N.txt");
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@@ -19,6 +28,11 @@
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# UTF-8(BOMあり）
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```cpp
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#include <iostream>
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#include <fstream>
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#include <string>
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#include <codecvt>
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setlocale(LC_ALL, "");
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wifstream ifs("UTF-8(BOM).txt");
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@@ -30,6 +44,11 @@
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# UTF-16 リトルエンディアン (BOMなし)
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```cpp
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#include <iostream>
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#include <fstream>
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#include <string>
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#include <codecvt>
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setlocale(LC_ALL, "");
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wifstream ifs("UTF-16LEN.txt");
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@@ -41,6 +60,11 @@
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# UTF-16 リトルエンディアン (BOMあり)
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```cpp
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#include <iostream>
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#include <fstream>
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#include <string>
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#include <codecvt>
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setlocale(LC_ALL, "");
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wifstream ifs("UTF-16LE(BOM).txt");
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@@ -52,6 +76,11 @@
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# UTF-16 ビッグエンディアン (BOMなし)
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```cpp
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#include <iostream>
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#include <fstream>
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#include <string>
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#include <codecvt>
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setlocale(LC_ALL, "");
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wifstream ifs("UTF-16BEN.txt");
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@@ -63,6 +92,11 @@
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# UTF-16 ビッグエンディアン (BOMあり)
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```cpp
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#include <iostream>
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#include <fstream>
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#include <string>
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#include <codecvt>
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setlocale(LC_ALL, "");
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wifstream ifs("UTF-16BE(BOM).txt");
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