mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +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
54 lines
3.3 KiB
C
54 lines
3.3 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/calls/struct/timespec.h"
|
|
#include "libc/math.h"
|
|
#include "libc/mem/gc.h"
|
|
#include "libc/stdio/stdio.h"
|
|
#include "libc/testlib/ezbench.h"
|
|
#include "libc/testlib/testlib.h"
|
|
#include "libc/x/xasprintf.h"
|
|
|
|
double _cbrt(double) asm("cbrt");
|
|
float _cbrtf(float) asm("cbrtf");
|
|
long double _cbrtl(long double) asm("cbrtl");
|
|
|
|
TEST(cbrt, test) {
|
|
EXPECT_STREQ("0", _gc(xasprintf("%.15g", _cbrt(0.))));
|
|
EXPECT_STREQ("-0", _gc(xasprintf("%.15g", _cbrt(-0.))));
|
|
EXPECT_STREQ("0.7937005259841", _gc(xasprintf("%.15g", _cbrt(.5))));
|
|
EXPECT_STREQ("-0.7937005259841", _gc(xasprintf("%.15g", _cbrt(-.5))));
|
|
EXPECT_STREQ("1", _gc(xasprintf("%.15g", _cbrt(1.))));
|
|
EXPECT_STREQ("-1", _gc(xasprintf("%.15g", _cbrt(-1.))));
|
|
EXPECT_STREQ("1.14471424255333", _gc(xasprintf("%.15g", _cbrt(1.5))));
|
|
EXPECT_STREQ("-1.14471424255333", _gc(xasprintf("%.15g", _cbrt(-1.5))));
|
|
EXPECT_STREQ("nan", _gc(xasprintf("%.15g", _cbrt(NAN))));
|
|
EXPECT_STREQ("-nan", _gc(xasprintf("%.15g", _cbrt(-NAN))));
|
|
EXPECT_STREQ("inf", _gc(xasprintf("%.15g", _cbrt(INFINITY))));
|
|
EXPECT_STREQ("-inf", _gc(xasprintf("%.15g", _cbrt(-INFINITY))));
|
|
EXPECT_STREQ("2.81264428523626e-103",
|
|
_gc(xasprintf("%.15g", _cbrt(__DBL_MIN__))));
|
|
EXPECT_STREQ("5.64380309412236e+102",
|
|
_gc(xasprintf("%.15g", _cbrt(__DBL_MAX__))));
|
|
}
|
|
|
|
BENCH(cbrt, bench) {
|
|
EZBENCH2("cbrt", donothing, _cbrt(.7)); // ~19ns
|
|
EZBENCH2("cbrtf", donothing, _cbrtf(.7)); // ~15ns
|
|
EZBENCH2("cbrtl", donothing, _cbrtl(.7)); // ~36ns
|
|
}
|