mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +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.
120 lines
5.1 KiB
C
120 lines
5.1 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/fmt/conv.h"
|
|
#include "libc/intrin/kprintf.h"
|
|
#include "libc/macros.internal.h"
|
|
#include "libc/math.h"
|
|
#include "libc/mem/gc.h"
|
|
#include "libc/runtime/runtime.h"
|
|
#include "libc/testlib/ezbench.h"
|
|
#include "libc/testlib/testlib.h"
|
|
#include "libc/x/x.h"
|
|
#include "libc/x/xasprintf.h"
|
|
|
|
double _tanh(double) asm("tanh");
|
|
float _tanhf(float) asm("tanhf");
|
|
long double _tanhl(long double) asm("tanhl");
|
|
|
|
TEST(tanh, test) {
|
|
EXPECT_STREQ("0", gc(xasprintf("%.15g", _tanh(0.))));
|
|
EXPECT_STREQ("-0", gc(xasprintf("%.15g", _tanh(-0.))));
|
|
EXPECT_STREQ("0.0996679946249558", gc(xasprintf("%.15g", _tanh(.1))));
|
|
EXPECT_STREQ("-0.0996679946249558", gc(xasprintf("%.15g", _tanh(-.1))));
|
|
EXPECT_STREQ("0.46211715726001", gc(xasprintf("%.15g", _tanh(.5))));
|
|
EXPECT_STREQ("-0.46211715726001", gc(xasprintf("%.15g", _tanh(-.5))));
|
|
EXPECT_STREQ("0.761594155955765", gc(xasprintf("%.15g", _tanh(1.))));
|
|
EXPECT_STREQ("-0.761594155955765", gc(xasprintf("%.15g", _tanh(-1.))));
|
|
EXPECT_STREQ("0.905148253644866", gc(xasprintf("%.15g", _tanh(1.5))));
|
|
EXPECT_STREQ("-0.905148253644866", gc(xasprintf("%.15g", _tanh(-1.5))));
|
|
EXPECT_STREQ("0.964027580075817", gc(xasprintf("%.15g", _tanh(2.))));
|
|
EXPECT_TRUE(isnan(_tanh(NAN)));
|
|
EXPECT_TRUE(isnan(_tanh(-NAN)));
|
|
EXPECT_STREQ("1", gc(xasprintf("%.15g", _tanh(INFINITY))));
|
|
EXPECT_STREQ("-1", gc(xasprintf("%.15g", _tanh(-INFINITY))));
|
|
EXPECT_STREQ("2.2250738585072e-308",
|
|
gc(xasprintf("%.15g", _tanh(__DBL_MIN__))));
|
|
EXPECT_STREQ("1", gc(xasprintf("%.15g", _tanh(__DBL_MAX__))));
|
|
EXPECT_STREQ("-0.761594155955765",
|
|
gc(xasprintf("%.15g", _tanh(-1.0000000000000002))));
|
|
EXPECT_STREQ("-2.1073424255447e-08",
|
|
gc(xasprintf("%.15g", _tanh(-2.1073424255447e-08))));
|
|
}
|
|
|
|
TEST(tanhf, test) {
|
|
EXPECT_STREQ(".099668", gc(xdtoaf(_tanhf(+.1))));
|
|
EXPECT_STREQ("-.099668", gc(xdtoaf(_tanhf(-.1))));
|
|
EXPECT_STREQ("0", gc(xdtoaf(_tanhf(0))));
|
|
EXPECT_STREQ("-0", gc(xdtoaf(_tanhf(-0.))));
|
|
EXPECT_TRUE(isnan(_tanhf(NAN)));
|
|
EXPECT_STREQ("1", gc(xdtoaf(_tanhf(INFINITY))));
|
|
EXPECT_STREQ("-1", gc(xdtoaf(_tanhf(-INFINITY))));
|
|
}
|
|
|
|
TEST(tanhl, test) {
|
|
EXPECT_STREQ(".09966799462495582", gc(xdtoal(_tanhl(+.1))));
|
|
EXPECT_STREQ("-.09966799462495582", gc(xdtoal(_tanhl(-.1))));
|
|
EXPECT_STREQ("0", gc(xdtoal(_tanhl(0))));
|
|
EXPECT_STREQ("-0", gc(xdtoal(_tanhl(-0.))));
|
|
EXPECT_TRUE(isnan(_tanhl(NAN)));
|
|
EXPECT_STREQ("1", gc(xdtoal(_tanhl(INFINITY))));
|
|
EXPECT_STREQ("-1", gc(xdtoal(_tanhl(-INFINITY))));
|
|
}
|
|
|
|
BENCH(tanhl, bench) {
|
|
EZBENCH2("-tanh", donothing, _tanh(.7)); // ~27ns
|
|
EZBENCH2("-tanhf", donothing, _tanhf(.7)); // ~15ns
|
|
EZBENCH2("-tanhl", donothing, _tanhl(.7)); // ~42ns
|
|
}
|
|
|
|
static inline float i2f(uint32_t i) {
|
|
union {
|
|
uint32_t i;
|
|
float f;
|
|
} u = {i};
|
|
return u.f;
|
|
}
|
|
|
|
static inline uint32_t f2i(float f) {
|
|
union {
|
|
float f;
|
|
uint32_t i;
|
|
} u = {f};
|
|
return u.i;
|
|
}
|
|
|
|
#if 0
|
|
TEST(tanhf, brute) {
|
|
long i;
|
|
int lim = 100;
|
|
uint32_t x, y;
|
|
for (i = 0; i <= 0x100000000; i += 7) {
|
|
x = f2i(tanhf(i2f(i)));
|
|
y = f2i(tanhf2(i2f(i)));
|
|
if (abs(x - y) > 2) {
|
|
kprintf("bah %#lx %s %d\n", i, gc(xdtoaf(i2f(i))), abs(x - y));
|
|
kprintf(" %-12s %#x\n", gc(xdtoaf(i2f(x))), x);
|
|
kprintf(" %-12s %#x\n", gc(xdtoaf(i2f(y))), y);
|
|
if (!--lim) break;
|
|
}
|
|
}
|
|
if (lim != 100) {
|
|
exit(1);
|
|
}
|
|
}
|
|
#endif
|