1 files changed, 68 insertions, 0 deletions
diff --git a/src/boost/libs/scope_exit/example/try_catch.cpp b/src/boost/libs/scope_exit/example/try_catch.cpp
new file mode 100644
index 00000000..4d002328
--- /dev/null
+++ b/src/boost/libs/scope_exit/example/try_catch.cpp
@@ -0,0 +1,68 @@
+
+// Copyright (C) 2006-2009, 2012 Alexander Nasonov
+// Copyright (C) 2012 Lorenzo Caminiti
+// Distributed under the Boost Software License, Version 1.0
+// (see accompanying file LICENSE_1_0.txt or a copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+// Home at http://www.boost.org/libs/scope_exit
+
+#include <boost/config.hpp>
+#ifdef BOOST_NO_CXX11_VARIADIC_MACROS
+#   error "variadic macros required"
+#else
+
+#include <boost/scope_exit.hpp>
+#include <boost/typeof/typeof.hpp>
+#include BOOST_TYPEOF_INCREMENT_REGISTRATION_GROUP()
+#include <iostream>
+
+struct file {
+    file(void) : open_(false) {}
+    file(char const* path) : open_(false) { open(path); }
+
+    void open(char const* path) { open_ = true; }
+    void close(void) { open_ = false; }
+    bool is_open(void) const { return open_; }
+
+private:
+    bool open_;
+};
+BOOST_TYPEOF_REGISTER_TYPE(file)
+
+void bad(void) {
+    //[try_catch_bad
+    file passwd;
+    try {
+        passwd.open("/etc/passwd");
+        // ...
+        passwd.close();
+    } catch(...) {
+        std::clog << "could not get user info" << std::endl;
+        if(passwd.is_open()) passwd.close();
+        throw;
+    }
+    //]
+}
+
+void good(void) {
+    //[try_catch_good
+    try {
+        file passwd("/etc/passwd");
+        BOOST_SCOPE_EXIT(&passwd) {
+            passwd.close();
+        } BOOST_SCOPE_EXIT_END
+    } catch(...) {
+        std::clog << "could not get user info" << std::endl;
+        throw;
+    }
+    //]
+}
+
+int main(void) {
+    bad();
+    good();
+    return 0;
+}
+
+#endif // variadic macros
+