[Assorted-commits] SF.net SVN: assorted: [854] sandbox/trunk/src/cc

[<yan...@us...>]

Revision: 854
          http://assorted.svn.sourceforge.net/assorted/?rev=854&view=rev
Author:   yangzhang
Date:     2008-06-05 18:09:41 -0700 (Thu, 05 Jun 2008)

Log Message:
-----------
some more c++ tests

Modified Paths:
--------------
    sandbox/trunk/src/cc/boost_lexical_cast.cc

Added Paths:
-----------
    sandbox/trunk/src/cc/boost_strings.cc
    sandbox/trunk/src/cc/exceptions.cc
    sandbox/trunk/src/cc/polymorphism.cc

Modified: sandbox/trunk/src/cc/boost_lexical_cast.cc
===================================================================
--- sandbox/trunk/src/cc/boost_lexical_cast.cc	2008-06-06 00:27:11 UTC (rev 853)
+++ sandbox/trunk/src/cc/boost_lexical_cast.cc	2008-06-06 01:09:41 UTC (rev 854)
@@ -13,6 +13,11 @@
   int i = lexical_cast<int>(si);
   cout << i << endl;
 
+  si = "asdf";
+  try { i = lexical_cast<int>(si); }
+  catch (exception& ex) { cout << "got an exception: " << ex.what() << endl; }
+  //catch (...) { cout << "got an exception" << endl; }
+
   // Doesn't work.
 //  string sb("true");
 //  bool b = lexical_cast<bool>(sb);

Added: sandbox/trunk/src/cc/boost_strings.cc
===================================================================
--- sandbox/trunk/src/cc/boost_strings.cc	                        (rev 0)
+++ sandbox/trunk/src/cc/boost_strings.cc	2008-06-06 01:09:41 UTC (rev 854)
@@ -0,0 +1,25 @@
+// Playground for boost string algorithms.
+
+#include <iostream>
+#include <string>
+#include <boost/algorithm/string.hpp>
+
+using namespace std;
+using namespace boost;
+
+int
+main()
+{
+  // This cannot be const for some reason (even though the iteration doesn't
+  // *seem* to be mutating the string).
+  /*const*/ string p("/tmp/dir/file");
+  typedef split_iterator<string::iterator> iter;
+  for (iter it = make_split_iterator(p, last_finder("/", is_equal()));
+       it != iter();
+       ++it) {
+    cout << "p: " << p << endl;
+    string part = copy_range<std::string>(*it);
+    cout << "part: " << part << endl;
+  }
+  return 0;
+}

Added: sandbox/trunk/src/cc/exceptions.cc
===================================================================
--- sandbox/trunk/src/cc/exceptions.cc	                        (rev 0)
+++ sandbox/trunk/src/cc/exceptions.cc	2008-06-06 01:09:41 UTC (rev 854)
@@ -0,0 +1,17 @@
+#include <iostream>
+#include <stdexcept>
+
+using namespace std;
+
+class e1 : public exception {};
+
+int
+main()
+{
+  try { throw e1(); } catch (e1 & e) { cout << "got " << e.what() << endl; }
+  // This catches fine.
+  try { throw e1(); } catch (exception & e) { cout << "got " << e.what() << endl; }
+  // This doesn't work.
+  try { throw e1(); } catch (exception * e) { cout << "got " << e->what() << endl; }
+  return 0;
+}

Added: sandbox/trunk/src/cc/polymorphism.cc
===================================================================
--- sandbox/trunk/src/cc/polymorphism.cc	                        (rev 0)
+++ sandbox/trunk/src/cc/polymorphism.cc	2008-06-06 01:09:41 UTC (rev 854)
@@ -0,0 +1,18 @@
+#include <iostream>
+
+// Demonstrates that polymorphism can be achieved via either pointers or
+// references.
+
+using namespace std;
+
+class A { public: virtual const char * f() { return "A"; } };
+class B : public A { public: const char * f() { return "B"; } };
+
+int
+main()
+{
+  B b;
+  A * a = b; cout << a->f() << endl;
+  A & a = b; cout << a.f() << endl;
+  return 0;
+}


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