don't support older than msvc-14 (2015) (#727)

don't support older than msvc-14 (2015)

appveyor.yml

@@ -15,21 +15,15 @@ environment:
     linkflags: '"/LIBPATH:C:\\openssl-1.0.1p-vs2015\\lib64"'
     include: '"c:\\openssl-1.0.1p-vs2015\\include"'
   - variant: test_debug
-    compiler: msvc-12.0
-    model: 64
-    linkflags: '"/LIBPATH:C:\\openssl-1.0.1p-vs2013\\lib64"'
-    include: '"c:\\openssl-1.0.1p-vs2013\\include"'
-  - variant: test_barebones
-    compiler: msvc-12.0
+    compiler: msvc-14.0
     model: 32
-    python_package: 1
-    linkflags: '"/LIBPATH:C:\\openssl-1.0.1p-vs2013\\lib"'
-    include: '"c:\\openssl-1.0.1p-vs2013\\include"'
+    linkflags: '"/LIBPATH:C:\\openssl-1.0.1p-vs2015\\lib"'
+    include: '"c:\\openssl-1.0.1p-vs2015\\include"'
   - variant: test_release
-    compiler: msvc-12.0
-    model: 32
-    linkflags: '"/LIBPATH:C:\\openssl-1.0.1p-vs2013\\lib"'
-    include: '"c:\\openssl-1.0.1p-vs2013\\include"'
+    compiler: msvc-14.0
+    model: 64
+    linkflags: '"/LIBPATH:C:\\openssl-1.0.1p-vs2015\\lib"'
+    include: '"c:\\openssl-1.0.1p-vs2015\\include"'
 
 # mingw and boost.random don't like each other. Comment this back in once there
 # is support
@@ -42,20 +36,6 @@ install:
 - if defined sim ( git submodule update --init --recursive )
 - set ROOT_DIRECTORY=%CD%
 - cd %ROOT_DIRECTORY%
-- if %compiler% == msvc-12.0 (
-    if not exist openssl-1.0.1p-vs2013.7z (
-      echo downloading openssl-2013
-      & appveyor DownloadFile "http://www.npcglib.org/~stathis/downloads/openssl-1.0.1p-vs2013.7z"
-    )
-  )
-- if %compiler% == msvc-12.0 (
-    echo extracting openssl-2013
-    & 7z x -oc:\ -aoa openssl-1.0.1p-vs2013.7z > nul
-    & copy c:\openssl-1.0.1p-vs2013\lib64\ssleay32MT.lib c:\openssl-1.0.1p-vs2013\lib64\ssleay32.lib
-    & copy c:\openssl-1.0.1p-vs2013\lib64\libeay32MT.lib c:\openssl-1.0.1p-vs2013\lib64\libeay32.lib
-    & copy c:\openssl-1.0.1p-vs2013\lib\ssleay32MT.lib c:\openssl-1.0.1p-vs2013\lib\ssleay32.lib
-    & copy c:\openssl-1.0.1p-vs2013\lib\libeay32MT.lib c:\openssl-1.0.1p-vs2013\lib\libeay32.lib
-  )
 - if %compiler% == msvc-14.0 (
     if not exist openssl-1.0.1p-vs2015.7z (
       echo downloading openssl-2015
@@ -89,7 +69,6 @@ install:
 - cd %ROOT_DIRECTORY%
 
 cache:
-- openssl-1.0.1p-vs2013.7z
 - openssl-1.0.1p-vs2015.7z
 
 build_script:

src/pe_crypto.cpp

@@ -183,7 +183,7 @@ namespace libtorrent
 		to_process = 0;
 		for (std::vector<boost::asio::mutable_buffer>::iterator i = iovec.begin();
 			i != iovec.end(); ++i)
-			to_process += boost::asio::buffer_size(*i);
+			to_process += int(boost::asio::buffer_size(*i));
 #endif
 
 		int next_barrier = 0;
@@ -209,7 +209,7 @@ namespace libtorrent
 				int overhead = 0;
 				for (std::vector<boost::asio::mutable_buffer>::iterator i = iovec.begin();
 					i != iovec.end(); ++i)
-					overhead += boost::asio::buffer_size(*i);
+					overhead += int(boost::asio::buffer_size(*i));
 				TORRENT_ASSERT(overhead + to_process == next_barrier);
 			}
 #endif

src/piece_picker.cpp

@@ -270,7 +270,7 @@ namespace libtorrent
 		TORRENT_ASSERT(download_state != piece_pos::piece_open);
 		TORRENT_ASSERT(find_dl_piece(download_state, i->index) == i);
 #if TORRENT_USE_ASSERTS
-		int prev_size = m_downloads[download_state].size();
+		int prev_size = int(m_downloads[download_state].size());
 #endif
 
 		// since we're removing a downloading_piece, we also need to free its

src/receive_buffer.cpp

@@ -251,7 +251,7 @@ void receive_buffer::mutable_buffers(std::vector<boost::asio::mutable_buffer>& v
 	int vec_bytes = 0;
 	for (std::vector<asio::mutable_buffer>::iterator i = vec.begin();
 		i != vec.end(); ++i)
-		vec_bytes += boost::asio::buffer_size(*i);
+		vec_bytes += int(boost::asio::buffer_size(*i));
 	TORRENT_ASSERT(vec_bytes == bytes);
 #endif
 }

src/session_impl.cpp

@@ -967,7 +967,7 @@ namespace aux {
 		while (!m_connections.empty())
 		{
 #if TORRENT_USE_ASSERTS
-			int conn = m_connections.size();
+			int conn = int(m_connections.size());
 #endif
 			(*m_connections.begin())->disconnect(errors::stopping_torrent, op_bittorrent);
 			TORRENT_ASSERT_VAL(conn == int(m_connections.size()) + 1, conn);