mirror of
https://github.com/jart/cosmopolitan.git
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70 lines
3.6 KiB
C
70 lines
3.6 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2021 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/math.h"
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#include "libc/mem/gc.h"
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#include "libc/testlib/ezbench.h"
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#include "libc/testlib/testlib.h"
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#include "libc/x/x.h"
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#include "libc/x/xasprintf.h"
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double _atanh(double) asm("atanh");
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float _atanhf(float) asm("atanhf");
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long double _atanhl(long double) asm("atanhl");
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TEST(atanh, test) {
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EXPECT_STREQ("0", _gc(xdtoa(_atanh(0))));
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EXPECT_STREQ("-0", _gc(xdtoa(_atanh(-0.))));
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EXPECT_STREQ(".549306144334055", _gc(xdtoa(_atanh(.5))));
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EXPECT_STREQ("-.549306144334055", _gc(xdtoa(_atanh(-.5))));
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EXPECT_STREQ("INFINITY", _gc(xdtoa(_atanh(+1))));
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EXPECT_STREQ("-INFINITY", _gc(xdtoa(_atanh(-1))));
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EXPECT_TRUE(isnan(_atanh(+1.1)));
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EXPECT_TRUE(isnan(_atanh(-1.1)));
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EXPECT_STREQ("-2.1073424255447e-08",
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_gc(xasprintf("%.15g", _atanh(-2.1073424255447e-08))));
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}
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TEST(atanhl, test) {
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EXPECT_STREQ("0", _gc(xdtoal(_atanhl(0))));
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EXPECT_STREQ("-0", _gc(xdtoal(_atanhl(-0.))));
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EXPECT_STREQ(".5493061443340548", _gc(xdtoal(_atanhl(.5))));
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EXPECT_STREQ("-.5493061443340548", _gc(xdtoal(_atanhl(-.5))));
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EXPECT_STREQ("INFINITY", _gc(xdtoal(_atanhl(+1))));
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EXPECT_STREQ("-INFINITY", _gc(xdtoal(_atanhl(-1))));
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EXPECT_TRUE(isnan(_atanhl(+1.1)));
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EXPECT_TRUE(isnan(_atanhl(-1.1)));
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}
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TEST(atanhf, test) {
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EXPECT_STREQ("0", _gc(xdtoaf(_atanhf(0))));
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EXPECT_STREQ("-0", _gc(xdtoaf(_atanhf(-0.))));
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EXPECT_STREQ(".549306", _gc(xdtoaf(_atanhf(.5))));
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EXPECT_STREQ("-.549306", _gc(xdtoaf(_atanhf(-.5))));
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EXPECT_STREQ("INFINITY", _gc(xdtoaf(_atanhf(+1))));
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EXPECT_STREQ("-INFINITY", _gc(xdtoaf(_atanhf(-1))));
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EXPECT_TRUE(isnan(_atanhf(+1.1)));
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EXPECT_TRUE(isnan(_atanhf(-1.1)));
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}
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BENCH(_atanh, bench) {
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volatile double a = .5;
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EZBENCH2("atanhf", donothing, EXPROPRIATE(_atanhf(a)));
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EZBENCH2("atanh", donothing, EXPROPRIATE(_atanh(a)));
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EZBENCH2("atanhl", donothing, EXPROPRIATE(_atanhl(a)));
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}
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