mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
550b52abf6
- Introduce epoll_pwait() - Rewrite -ftrapv and ffs() libraries in C code - Use more FreeBSD code in math function library - Get significantly more tests passing on qemu-aarch64 - Fix many Musl long double functions that were broken on AARCH64
52 lines
3.1 KiB
C
52 lines
3.1 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net 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/math.h"
|
|
#include "libc/mem/gc.h"
|
|
#include "libc/stdio/rand.h"
|
|
#include "libc/testlib/ezbench.h"
|
|
#include "libc/testlib/testlib.h"
|
|
#include "libc/x/xasprintf.h"
|
|
|
|
double _acos(double) asm("acos");
|
|
float _acosf(float) asm("acosf");
|
|
long double _acosl(long double) asm("acosl");
|
|
|
|
TEST(acos, test) {
|
|
EXPECT_STREQ("1.5707963267949", _gc(xasprintf("%.15g", _acos(0.))));
|
|
EXPECT_STREQ("1.5707963267949", _gc(xasprintf("%.15g", _acos(-0.))));
|
|
EXPECT_STREQ("1.0471975511966", _gc(xasprintf("%.15g", _acos(.5))));
|
|
EXPECT_STREQ("2.0943951023932", _gc(xasprintf("%.15g", _acos(-.5))));
|
|
EXPECT_STREQ("0", _gc(xasprintf("%.15g", _acos(1.))));
|
|
EXPECT_STREQ("3.14159265358979", _gc(xasprintf("%.15g", _acos(-1.))));
|
|
EXPECT_TRUE(isnan(_acos(1.5)));
|
|
EXPECT_TRUE(isnan(_acos(-1.5)));
|
|
EXPECT_TRUE(isnan(_acos(2.)));
|
|
EXPECT_TRUE(isnan(_acos(NAN)));
|
|
EXPECT_TRUE(isnan(_acos(-NAN)));
|
|
EXPECT_TRUE(isnan(_acos(INFINITY)));
|
|
EXPECT_TRUE(isnan(_acos(-INFINITY)));
|
|
EXPECT_STREQ("1.5707963267949", _gc(xasprintf("%.15g", _acos(__DBL_MIN__))));
|
|
EXPECT_TRUE(isnan(_acos(__DBL_MAX__)));
|
|
}
|
|
|
|
BENCH(acos, bench) {
|
|
EZBENCH2("acos", donothing, _acos(.7)); /* ~13ns */
|
|
EZBENCH2("acosf", donothing, _acosf(.7)); /* ~10ns */
|
|
EZBENCH2("acosl", donothing, _acosl(.7)); /* ~26ns */
|
|
}
|