ntohll function (winsock2.h)
The ntohll inline function converts an unsigned __int64 from TCP/IP network order to host byte order (which is little-endian on Intel processors).
Syntax
unsigned __int64 ntohll(
unsigned __int64 Value
);
Parameters
Value
An unsigned __int64 number in TCP/IP network byte order.
Return value
The ntohll function returns the value supplied in the value parameter with the byte order reversed. If value is already in host byte order, then this function will reverse it. It is up to the application to determine if the byte order must be reversed.
Remarks
The ntohll inline function takes an unsigned __int64 number in TCP/IP network byte order (the AF_INET or AF_INET6 address family) and returns a 32-bit number in host byte order.
The ntohll function can be used to convert an IPv4 address in network byte order to the IPv4 address in host byte order. This function does not do any checking to determine if the value parameter is a valid IPv4 address.
The ntohll function does not require that the Winsock DLL has previously been loaded with a successful call to the WSAStartup function.
Windows Phone 8: This function is supported for Windows Phone Store apps on Windows Phone 8 and later.
Windows 8.1 and Windows Server 2012 R2: This function is supported for Windows Store apps on Windows 8.1, Windows Server 2012 R2, and later.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 8.1, Windows 8 [desktop apps | UWP apps] |
| Minimum supported server | Windows Server 2012 [desktop apps | UWP apps] |
| Target Platform | Windows |
| Header | winsock2.h |