53 lines
1.9 KiB
C
53 lines
1.9 KiB
C
#if 0
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/*─────────────────────────────────────────────────────────────────╗
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│ To the extent possible under law, Justine Tunney has waived │
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│ all copyright and related or neighboring rights to this file, │
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│ as it is written in the following disclaimers: │
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│ • http://unlicense.org/ │
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│ • http://creativecommons.org/publicdomain/zero/1.0/ │
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╚─────────────────────────────────────────────────────────────────*/
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#endif
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#include "libc/log/gdb.h"
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#include "libc/rand/rand.h"
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#include "libc/stdio/stdio.h"
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/**
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* @fileovierview gdbexec(s) demo
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* It basically launches an ephemeral `gdb -p $PID -ex "$s"`.
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*/
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int i;
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int M[8][8] = {
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{772549, 921569, 407843, 352941, 717647, 78431, 666667, 627451},
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{321569, 419608, 227451, 396078, 223529, 882353, 952941, 937255},
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{15686, 545098, 31373, 7843, 15686, 298039, 976471, 352941},
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{70588, 858824, 415686, 184314, 25098, 5098, 141176, 47059},
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{141176, 541176, 658824, 227451, 490196, 301961, 937255, 678431},
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{188235, 823529, 858824, 87451, 545098, 611765, 188235, 576471},
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{580392, 913725, 996078, 592157, 7451, 176471, 862745, 784314},
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{278431, 945098, 843137, 439216, 878431, 529412, 262745, 43137},
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};
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int main(int argc, char *argv[]) {
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int y, x;
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for (i = 0;; ++i) {
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for (y = 0; y < 8; ++y) {
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for (x = 0; x < 8; ++x) {
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if (!(M[y][x] % 2)) {
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M[y][x] /= 2;
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} else {
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M[y][x] *= 3;
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M[y][x] += 1;
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}
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}
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}
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if (rand() % 10000 == 0) {
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gdbexec("print i");
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gdbexec("print M");
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break;
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}
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}
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printf("quitting\n");
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return 0;
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}
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