view runtime/tools/blink.c @ 13276:6958e700a458 v8.0.1512

patch 8.0.1512: warning for possibly using NULL pointer commit https://github.com/vim/vim/commit/e4db7aedab65abadcc84c78e7a10ec7bb62f11cf Author: Bram Moolenaar <Bram@vim.org> Date: Tue Feb 13 13:12:11 2018 +0100 patch 8.0.1512: warning for possibly using NULL pointer Problem: Warning for possibly using NULL pointer. (Coverity) Solution: Skip using the pointer if it's NULL.
author Christian Brabandt <cb@256bit.org>
date Tue, 13 Feb 2018 13:15:06 +0100
parents 64035abb986b
children
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/*
 * An extremely simple program to make the cursor blink in an xterm.
 * This is useful when the cursor is hard to spot in a highlighted file.
 * Start in the background: "blink&"  Stop by killing it.
 * Bram Moolenaar  980109  (based on an idea from John Lange).
 */

#include <stdio.h>
#include <unistd.h>

	int
main(void)
{
	while (1)
	{
		printf("\e[?25h");
		fflush(stdout);
		usleep(400000);		/* on time */
		printf("\e[?25l");
		fflush(stdout);
		usleep(250000);		/* off time */
	}
	return 0;
}