Function impossible

src/pline.c:583–634

}

void
impossible(const char *s, ...)
{
    va_list the_args;
    char pbuf[BIGBUFSZ]; /* will be chopped down to BUFSZ-1 if longer */
    char pbuf2[BUFSZ];

    va_start(the_args, s);
    if (program_state.in_impossible)
        panic("impossible called impossible");

    program_state.in_impossible = 1;
    (void) vsnprintf(pbuf, sizeof pbuf, s, the_args);
    va_end(the_args);
    pbuf[BUFSZ - 1] = '\0'; /* sanity */
    paniclog("impossible", pbuf);
    if (iflags.debug_fuzzer == fuzzer_impossible_panic)
        panic("%s", pbuf);

    gp.pline_flags = URGENT_MESSAGE;
    pline("%s", pbuf);
    gp.pline_flags = 0;

    if (program_state.in_sanity_check) {
        /* skip rest of multi-line feedback */
        program_state.in_impossible = 0;
        return;
    }

    Strcpy(pbuf2, "Program in disorder!");
    if (program_state.something_worth_saving)
        Strcat(pbuf2, "  (Saving and reloading may fix this problem.)");
    pline("%s", pbuf2);
    pline("Please report these messages to %s.", DEVTEAM_EMAIL);
    if (sysopt.support) {
        pline("Alternatively, contact local support: %s", sysopt.support);
    }

#ifdef CRASHREPORT
    if (sysopt.crashreporturl) {
        boolean report = ('y' == yn_function("Report now?", ynchars,
                                             'n', FALSE));

        raw_print(""); /* prove to the user the character was accepted */
        if (report) {
            submit_web_report(1, "Impossible", pbuf);
        }
    }
#endif

    program_state.in_impossible = 0;
}

RESTORE_WARNING_FORMAT_NONLITERAL