made most examples build without exception support

examples/dump_torrent.cpp

@@ -53,8 +53,10 @@ int main(int argc, char* argv[])
 	boost::filesystem::path::default_name_check(boost::filesystem::no_check);
 #endif
 
+#ifndef BOOST_NO_EXCEPTIONS
 	try
 	{
+#endif
 		std::ifstream in(argv[1], std::ios_base::binary);
 		in.unsetf(std::ios_base::skipws);
 		entry e = bdecode(std::istream_iterator<char>(in), std::istream_iterator<char>());
@@ -98,11 +100,13 @@ int main(int argc, char* argv[])
 				<< last << " ]\n";
 		}
 		
+#ifndef BOOST_NO_EXCEPTIONS
 	}
 	catch (std::exception& e)
 	{
   		std::cout << e.what() << "\n";
 	}
+#endif
 
 	return 0;
 }

examples/make_torrent.cpp

@@ -85,8 +85,10 @@ int main(int argc, char* argv[])
 		return 1;
 	}
 
+#ifndef BOOST_NO_EXCEPTIONS
 	try
 	{
+#endif
 		boost::intrusive_ptr<torrent_info> t(new torrent_info);
 		path full_path = complete(path(argv[3]));
 		ofstream out(complete(path(argv[1])), std::ios_base::binary);
@@ -121,11 +123,13 @@ int main(int argc, char* argv[])
 		// create the torrent and print it to out
 		entry e = t->create_torrent();
 		libtorrent::bencode(std::ostream_iterator<char>(out), e);
+#ifndef BOOST_NO_EXCEPTIONS
 	}
 	catch (std::exception& e)
 	{
 		std::cerr << e.what() << "\n";
 	}
+#endif
 
 	return 0;
 }

examples/simple_client.cpp

@@ -35,9 +35,6 @@ POSSIBILITY OF SUCH DAMAGE.
 #include <iterator>
 #include <exception>
 
-#include <boost/format.hpp>
-#include <boost/date_time/posix_time/posix_time.hpp>
-
 #include "libtorrent/entry.hpp"
 #include "libtorrent/bencode.hpp"
 #include "libtorrent/session.hpp"
@@ -57,7 +54,9 @@ int main(int argc, char* argv[])
 		return 1;
 	}
 
+#ifndef BOOST_NO_EXCEPTIONS
 	try
+#endif
 	{
 		session s;
 		s.listen_on(std::make_pair(6881, 6889));
@@ -72,9 +71,12 @@ int main(int argc, char* argv[])
 		std::cin.unsetf(std::ios_base::skipws);
 		std::cin >> a;
 	}
+#ifndef BOOST_NO_EXCEPTIONS
 	catch (std::exception& e)
 	{
   		std::cout << e.what() << "\n";
 	}
+#endif
 	return 0;
 }
+