Sockets are unsigned on windows

this gets rid of a warning about signed/unsigned comparison

diff --git a/src/common/compat.h b/src/common/compat.h
index 98642e2d922b5f1e79d3238f2fa658a567406c4a..8e271ba90515f4f74e3fb064e6268110d065b7fa 100644 (file)
--- a/src/common/compat.h
+++ b/src/common/compat.h
@@ -401,7 +401,7 @@ typedef int socklen_t;
 
 #ifdef MS_WINDOWS
 #define tor_socket_t intptr_t
-#define SOCKET_OK(s) ((s) != INVALID_SOCKET)
+#define SOCKET_OK(s) ((unsigned)(s) != INVALID_SOCKET)
 #else
 #define tor_socket_t int
 #define SOCKET_OK(s) ((s) >= 0)