mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-07 15:03:34 +00:00
a4b455185b
Renaming gc() to _gc() was a mistake since the better thing to do is put it behind the _COSMO_SOURCE macro. We need this change because I haven't wanted to use my amazing garbage collector ever since we renamed it. You now need to define _COSMO_SOURCE yourself when using amalgamation header and cosmocc users need to pass the -mcosmo flag to get the gc() function Some other issues relating to cancelation have been fixed along the way. We're also now putting cosmocc in a folder named `.cosmocc` so it can be more safely excluded by grep --exclude-dir=.cosmocc --exclude-dir=o etc.
56 lines
2.8 KiB
C
56 lines
2.8 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2021 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/calls/calls.h"
|
|
#include "libc/intrin/popcnt.h"
|
|
#include "libc/limits.h"
|
|
#include "libc/mem/gc.h"
|
|
#include "libc/mem/mem.h"
|
|
#include "libc/str/str.h"
|
|
#include "libc/testlib/ezbench.h"
|
|
#include "libc/testlib/hyperion.h"
|
|
#include "libc/testlib/testlib.h"
|
|
|
|
void SetUpOnce(void) {
|
|
ASSERT_SYS(0, 0, pledge("stdio", 0));
|
|
}
|
|
|
|
TEST(_countbits, testLow) {
|
|
int i;
|
|
char p[2];
|
|
for (i = 0; i < 65536; ++i) {
|
|
p[0] = i >> 0;
|
|
p[1] = i >> 8;
|
|
ASSERT_EQ(__builtin_popcount(i), _countbits(p, 2), "i=%d", i);
|
|
}
|
|
}
|
|
|
|
TEST(_countbits, test) {
|
|
int i;
|
|
char *p = gc(memset(malloc(256), 0x55, 256));
|
|
for (i = 0; i < 256; ++i) {
|
|
ASSERT_EQ(i * CHAR_BIT / 2, _countbits(p, i), "i=%d", i);
|
|
}
|
|
}
|
|
|
|
BENCH(countbits, bench) {
|
|
EZBENCH_N("_countbits", 7, _countbits(kHyperion, 7));
|
|
EZBENCH_N("_countbits", 8, _countbits(kHyperion, 8));
|
|
EZBENCH_N("_countbits", 16, _countbits(kHyperion, 16));
|
|
EZBENCH_N("_countbits", kHyperionSize, _countbits(kHyperion, kHyperionSize));
|
|
}
|