FD_SET macro (winsock2.h)
The FD_SET macro adds a file descriptor to an fd_set. If the file descriptor already exist within the set, a duplicate will not be added.
Syntax
void FD_SET(
fd,
set
);
Parameters
fd
A descriptor identifying a socket which will be added to the set.
set
A pointer to a fd_set.
Return value
None
Remarks
Be careful not to confuse the FD_SET macro with the typedef of the fd_set structure that's also named FD_SET. That said, the FD_SET macro and the fd_set structure are related, and often used in conjunction.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | winsock2.h (include Winsock2.h, Winsock.h) |