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zhangyuchi/raii_file.cc

Created September 19, 2016 08:30
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自动关闭文件 raii From http://www.viva64.com/en/b/0429/#ID0E3ZEM
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raii_file.cc
auto deleter = [](FILE* f) {fclose(f);};
std::unique_ptr<FILE, decltype(deleter)> p(fopen("1.txt", "w"),
deleter);
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