Read a character from a stream
#include <wchar.h> wint_t getwchar( void );
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The getwchar() function reads the next wide character from stdin.
The next character from stdin, cast as (wint_t)(wchar_t), or WEOF if the end-of-file has been reached or if an error occurs (errno is set).
- The O_NONBLOCK flag is set for stdin and would have been blocked by this operation.
- A signal terminated the read operation; no data was transferred.
- Either a physical I/O error has occurred, or the process is in the background and is being ignored or blocked.
- Cannot read at or beyond the offset maximum for this stream.