more sign warnings fixes (#1775)

more sign warnings fixes

include/libtorrent/file.hpp

@@ -94,10 +94,10 @@ namespace libtorrent
 
 	struct file_status
 	{
-		std::int64_t file_size;
+		std::int64_t file_size = 0;
-		std::uint64_t atime;
+		std::uint64_t atime = 0;
-		std::uint64_t mtime;
+		std::uint64_t mtime = 0;
-		std::uint64_t ctime;
+		std::uint64_t ctime = 0;
 		enum {
 #if defined TORRENT_WINDOWS
 			fifo = 0x1000, // named pipe (fifo)
@@ -114,7 +114,7 @@ namespace libtorrent
 			socket = 0140000  // socket
 #endif
 		} modes_t;
-		int mode;
+		int mode = 0;
 	};
 
 	// internal flags for stat_file

include/libtorrent/platform_util.hpp

@@ -7,8 +7,7 @@ namespace libtorrent
 {
 	int max_open_files();
 
-	std::uint64_t total_physical_ram();
+	std::int64_t total_physical_ram();
 }
 
 #endif // TORRENT_PLATFORM_UTIL_HPP
-

src/allocator.cpp

@@ -114,12 +114,12 @@ namespace libtorrent
 
 		void* ret;
 #if TORRENT_USE_POSIX_MEMALIGN
-		if (posix_memalign(&ret, page_size(), bytes)
+		if (posix_memalign(&ret, std::size_t(page_size()), std::size_t(bytes))
 			!= 0) ret = nullptr;
 #elif TORRENT_USE_MEMALIGN
-		ret = memalign(page_size(), bytes);
+		ret = memalign(std::size_t(page_size()), std::size_t(bytes));
 #elif defined TORRENT_WINDOWS
-		ret = _aligned_malloc(bytes, page_size());
+		ret = _aligned_malloc(std::size_t(bytes), std::size_t(page_size()));
 #elif defined TORRENT_BEOS
 		area_id id = create_area("", &ret, B_ANY_ADDRESS
 			, (bytes + page_size() - 1) & (page_size() - 1), B_NO_LOCK, B_READ_AREA | B_WRITE_AREA);

src/disk_buffer_pool.cpp

@@ -337,7 +337,7 @@ namespace libtorrent
 		int const cache_size = sett.get_int(settings_pack::cache_size);
 		if (cache_size < 0)
 		{
-			std::uint64_t phys_ram = total_physical_ram();
+			std::int64_t phys_ram = total_physical_ram();
 			if (phys_ram == 0) m_max_use = 1024;
 			else
 			{

src/enum_net.cpp

@@ -204,13 +204,13 @@ namespace libtorrent { namespace
 			return false;
 
 		int if_index = 0;
-		int rt_len = RTM_PAYLOAD(nl_hdr);
+		int rt_len = int(RTM_PAYLOAD(nl_hdr));
 #ifdef __clang__
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wcast-align"
 #endif
 		for (rtattr* rt_attr = reinterpret_cast<rtattr*>(RTM_RTA(rt_msg));
-			RTA_OK(rt_attr,rt_len); rt_attr = RTA_NEXT(rt_attr,rt_len))
+			RTA_OK(rt_attr, rt_len); rt_attr = RTA_NEXT(rt_attr, rt_len))
 		{
 			switch(rt_attr->rta_type)
 			{
@@ -247,9 +247,9 @@ namespace libtorrent { namespace
 #pragma clang diagnostic pop
 #endif
 
-		if_indextoname(if_index, rt_info->name);
+		if_indextoname(std::uint32_t(if_index), rt_info->name);
 		ifreq req = {};
-		if_indextoname(if_index, req.ifr_name);
+		if_indextoname(std::uint32_t(if_index), req.ifr_name);
 		ioctl(s, siocgifmtu, &req);
 		rt_info->mtu = req.ifr_mtu;
 //		obviously this doesn't work correctly. How do you get the netmask for a route?
@@ -1053,7 +1053,7 @@ namespace libtorrent
 		nl_msg->nlmsg_type = RTM_GETROUTE;
 		nl_msg->nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST;
 		nl_msg->nlmsg_seq = seq++;
-		nl_msg->nlmsg_pid = getpid();
+		nl_msg->nlmsg_pid = std::uint32_t(getpid());
 
 		if (send(sock, nl_msg, nl_msg->nlmsg_len, 0) < 0)
 		{

src/file.cpp

@@ -675,7 +675,7 @@ namespace libtorrent
 				ec.assign(errno, system_category());
 				break;
 			}
-			int const num_written = int(write(outfd, buffer, num_read));
+			int const num_written = int(write(outfd, buffer, std::size_t(num_read)));
 			if (num_written < num_read)
 			{
 				ec.assign(errno, system_category());

src/platform_util.cpp

@@ -86,16 +86,16 @@ namespace libtorrent
 #endif
 	}
 
-	std::uint64_t total_physical_ram()
+	std::int64_t total_physical_ram()
 	{
 #if defined TORRENT_BUILD_SIMULATOR
-		return std::uint64_t(4) * 1024 * 1024 * 1024;
+		return std::int64_t(4) * 1024 * 1024 * 1024;
 #else
 		// figure out how much physical RAM there is in
 		// this machine. This is used for automatically
 		// sizing the disk cache size when it's set to
 		// automatic.
-		std::uint64_t ret = 0;
+		std::int64_t ret = 0;
 
 #ifdef TORRENT_BSD
 #ifdef HW_MEMSIZE
@@ -106,14 +106,14 @@ namespace libtorrent
 		// than not building
 		int mib[2] = { CTL_HW, HW_PHYSMEM };
 #endif
-		size_t len = sizeof(ret);
+		std::size_t len = sizeof(ret);
 		if (sysctl(mib, 2, &ret, &len, nullptr, 0) != 0)
 			ret = 0;
 #elif defined TORRENT_WINDOWS
 		MEMORYSTATUSEX ms;
 		ms.dwLength = sizeof(MEMORYSTATUSEX);
 		if (GlobalMemoryStatusEx(&ms))
-			ret = ms.ullTotalPhys;
+			ret = int(ms.ullTotalPhys);
 		else
 			ret = 0;
 #elif defined TORRENT_LINUX
@@ -129,8 +129,8 @@ namespace libtorrent
 			struct rlimit r;
 			if (getrlimit(rlimit_as, &r) == 0 && r.rlim_cur != rlim_infinity)
 			{
-				if (ret > r.rlim_cur)
+				if (ret > std::int64_t(r.rlim_cur))
-					ret = r.rlim_cur;
+					ret = std::int64_t(r.rlim_cur);
 			}
 		}
 #endif
@@ -138,4 +138,3 @@ namespace libtorrent
 #endif // TORRENT_BUILD_SIMULATOR
 	}
 }
-