data_ahead(3)

data_ahead3

Test for off-screen data in given forms

Usage

#include <form.h>

bool data_ahead(const FORM *form); bool data_behind(const FORM *form);

Overview

The function data_ahead tests whether there is off-screen data ahead in the given form. It returns TRUE (1) or FALSE (0).

The function data_behind tests whether there is off-screen data behind in the given form. It returns TRUE (1) or FALSE (0).

Portability

These routines emulate the System V forms library. They were not supported on Version 7 or BSD versions.

Releases

66 releases since FreeBSD 4.3-RELEASE; the text changed 5 times.

  1. 4.3–6.2
  2. 6.3–10.4
  3. 11.0–12.4
  4. 13.0–13.5
  5. 14.0–14.1
  6. 14.2–16.0

Authors

Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S. Raymond.

From base 16.0-CURRENT-20261027-61c70dc16a79 in FreeBSD 16.0-CURRENT (2026-10-27). Parsed by carta from the page's man source.