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52 lines
1.9 KiB

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