ssize_t write(int fd, const void* buf, size_t count);
Writes count bytes from the buffer buf to the file handle fd. Returns the number of bytes written, or the negation of the error code on error. It is possible for the number of bytes written to be smaller than the number of bytes requested.
|
If the system call is interrupted, this function will return -EINTR. This differs from most C runtimes, where -1 is returned with errno set to EINTR. As this runtime does not have errno, callers should check for -EINTR and a result less than zero in the error checking code. |