ungetch.3x (2010 09)

ungetch(3X) ungetch(3X)

(ENHANCED CURSES)

NAME

ungetch, unget_wch — push a character onto the input queue

SYNOPSIS

#include <curses.h>

int ungetch(int ch);

int unget_wch(const wchar_t wch);

DESCRIPTION

The ungetch() function pushes the single-byte character ch onto the head of the input queue.

The

unget_wch() function pushes the wide character wch onto the head of the input queue.

One character of push-back is guaranteed. If these functions are called too many times without an inter-

vening call to

getch() or get_wch(), the operation may fail.

RETURN VALUE

Upon successful completion, these functions return OK. Otherwise, they return ERR.

ERRORS

No errors are deﬁned.

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ungetch(3X) ungetch(3X) (ENHANCED CURSES) NAME ungetch, unget_wch — push a character onto the input queue SYNOPSIS #include int ungetch(int ch); int unget_wch(const wchar_t wch); DESCRIPTION The ungetch() function pushes the single-byte character ch onto the head of the input queue. The unget_wch() function pushes the wide character wch onto the head of the input queue. One character of push-back is guaranteed.
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(Notes) A (Notes) uA 2 Hewlett-Packard Company −1− HP-UX 11i Version 3: September 2010