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Add more math fixes

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This commit is contained in:
Justine Tunney 2021-03-06 11:41:01 -08:00
parent 11ec99931b
commit bfef17eb6d
27 changed files with 236 additions and 61 deletions
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39
test/libc/tinymath/acos_test.c Normal file
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/*-*- 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/runtime/gc.h"
#include "libc/testlib/testlib.h"
#include "libc/x/x.h"
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(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(__LDBL_MAX__)));
}