cosmopolitan/test/libc/nexgen32e/memset_test.c
Justine Tunney a4b455185b
Bring back gc() function
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.
2024-01-08 10:26:28 -08:00

75 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 2020 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/mem/gc.h"
#include "libc/mem/mem.h"
#include "libc/nexgen32e/nexgen32e.h"
#include "libc/testlib/testlib.h"
void *_memset(void *, int, size_t) asm("memset");
TEST(memset, size0_doesNothing) {
_memset(NULL, 0, 0);
}
TEST(memset, size1) {
char *b = gc(malloc(1));
_memset(b, 7, 1);
EXPECT_EQ(7, b[0]);
}
TEST(memset, size2) {
char *b = gc(malloc(2));
_memset(b, 7, 2);
EXPECT_EQ(7, b[0]);
EXPECT_EQ(7, b[1]);
}
TEST(memset, size3) {
char *b = gc(malloc(3));
_memset(b, 7, 3);
EXPECT_EQ(7, b[0]);
EXPECT_EQ(7, b[1]);
EXPECT_EQ(7, b[2]);
}
TEST(memset, size4) {
char *b = gc(malloc(4));
_memset(b, 7, 4);
EXPECT_EQ(7, b[0]);
EXPECT_EQ(7, b[1]);
EXPECT_EQ(7, b[2]);
EXPECT_EQ(7, b[3]);
}
TEST(memset, size5) {
char *b = gc(malloc(5));
_memset(b, 7, 5);
EXPECT_EQ(7, b[0]);
EXPECT_EQ(7, b[1]);
EXPECT_EQ(7, b[2]);
EXPECT_EQ(7, b[3]);
EXPECT_EQ(7, b[4]);
}
TEST(memset, wut) {
char buf[128];
_memset(buf, -1, sizeof(buf));
EXPECT_EQ(255, buf[8] & 255);
}