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/**
* slibc — Yet another C library
* Copyright © 2015, 2016 Mattias Andrée (maandree@member.fsf.org)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <unistd.h>
/**
* Halt and catch fire!
* This function never returns.
*
* This is a slibc extension.
*
* @etymology (H)alt and (c)atch (f)ire!
*
* @since Always.
*/
void hcf(void)
{
catch_fire:
goto catch_fire;
}
/*** Other fun ways to catch fire include: ***/
/*
void hcf(void)
{
for (;;);
}
void hcf(void)
{
hcf();
"When optimised, tail-recursion is used and it will be be translated to `for (;;);`";
}
#include <setjmp.h>
void hcf(void)
{
jmp_buf env;
setjmp(env);
longjmp(env, 0);
}
#include <limits.h>
void hcf(void)
{
unsigned long long int i = 0;
while (i++ != ULLONG_MAX);
"This is just for a limited time, but probably too long for you.";
}
#include <signal.h>
static void __hcf(int signo)
{
signal(signo, __hcf);
}
void hcf(void)
{
sigset_t mask;
sigfillset(&mask);
sigdelset(&mask, SIGSEGV);
pthread_sigmask(SIG_SETMASK, &mask, NULL);
signal(SIGSEGV, __hcf);
if (*(int*)0)
abort();
"This is perhaps the least flammable way, but the most fun.";
}
*/
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