Find words whose first and last three letters are equal: Difference between revisions

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 tartar
 testes
+</pre>
+=={{header|C++}}==
+<lang cpp>#include <cstdlib>
+#include <fstream>
+#include <iostream>
+int main(int argc, char** argv) {
+    const char* filename(argc < 2 ? "unixdict.txt" : argv[1]);
+    std::ifstream in(filename);
+    if (!in) {
+        std::cerr << "Cannot open file '" << filename << "'.\n";
+        return EXIT_FAILURE;
+    }
+    std::string word;
+    int n = 0;
+    while (getline(in, word)) {
+        const size_t len = word.size();
+        if (len > 5 && word.compare(0, 3, word, len - 3) == 0)
+            std::cout << ++n << ": " << word << '\n';
+    }
+    return EXIT_SUCCESS;
+}</lang>
+{{out}}
+<pre>
+. antiperspirant
+. calendrical
+. einstein
+. hotshot
+. murmur
+. oshkosh
+. tartar
+. testes
 </pre>