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/* This file is dedicated to the public domain. */
{.desc = "the bit buffer implementation"};
#include "../src/bitbuf.h"
#include "../src/intdefs.h"
#include <stdio.h>
#include <string.h>
static union {
char buf[512];
bitbuf_cell buf_align[512 / sizeof(bitbuf_cell)];
} bb_buf;
static struct bitbuf bb = {bb_buf.buf, 512, 512 * 8, 0, false, false, "test"};
TEST("The possible UB in bitbuf_appendbuf shouldn't trigger horrible bugs") {
char unalign[3] = {'X', 'X', 'X'};
char _buf[32 + sizeof(bitbuf_cell)];
char *buf = _buf;
if (bitbuf_align <= 1) {
// *shouldn't* happen
fputs("what's going on with the alignment???\n", stderr);
return false;
}
// make sure the pointer is definitely misaligned
while (!((usize)buf % bitbuf_align)) ++buf;
memcpy(buf, "Misaligned test buffer contents!", 32);
bitbuf_appendbuf(&bb, buf, 32);
return !memcmp(bb.buf, buf, 32);
}
// vi: sw=4 ts=4 noet tw=80 cc=80
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