cosmopolitan/test/libc/tinymath/expm1_test.c
Justine Tunney 40291c9db3 Improve signal handling and math
- Polyfill ucontext_t on FreeBSD/OpenBSD/NetBSD
- Add tests confirming signals can edit CPU state
- Work towards supporting ZIP filesystem on bare metal
- Add more tinymath unit tests for POSIX conformance
- Add X87 and SSE status flags to crash report
- Fix some bugs in blinkenlights
- Fix llvm build breakage
2021-02-25 18:33:33 -08:00

58 lines
3.4 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/runtime/gc.h"
#include "libc/testlib/testlib.h"
#include "libc/x/x.h"
#define expm1l(x) expm1l(VEIL("t", (long double)(x)))
#define expm1(x) expm1(VEIL("x", (double)(x)))
#define expm1f(x) expm1f(VEIL("x", (float)(x)))
TEST(expm1l, test) {
EXPECT_STREQ("1.718281828459045", gc(xdtoal(expm1l(1))));
EXPECT_STREQ("1.718281828459045", gc(xdtoal(expl(1) - 1)));
EXPECT_STREQ("0", gc(xdtoal(expm1l(0))));
EXPECT_STREQ("0", gc(xdtoal(expm1l(-0.))));
EXPECT_STREQ("NAN", gc(xdtoal(expm1l(NAN))));
EXPECT_STREQ("-1", gc(xdtoal(expm1l(-INFINITY))));
EXPECT_STREQ("INFINITY", gc(xdtoal(expm1l(INFINITY))));
/* EXPECT_STREQ("-INFINITY", gc(xdtoal(expm1l(-132098844872390)))); */
/* EXPECT_STREQ("INFINITY", gc(xdtoal(expm1l(132098844872390)))); */
}
TEST(expm1, test) {
EXPECT_STREQ("0", gc(xdtoa(expm1(0))));
EXPECT_STREQ("0", gc(xdtoa(expm1(-0.))));
EXPECT_STREQ("NAN", gc(xdtoa(expm1(NAN))));
EXPECT_STREQ("-1", gc(xdtoa(expm1(-INFINITY))));
EXPECT_STREQ("INFINITY", gc(xdtoa(expm1(INFINITY))));
/* EXPECT_STREQ("-INFINITY", gc(xdtoa(expm1(-132098844872390)))); */
/* EXPECT_STREQ("INFINITY", gc(xdtoa(expm1(132098844872390)))); */
}
TEST(expm1f, test) {
EXPECT_STREQ("0", gc(xdtoaf(expm1f(0))));
EXPECT_STREQ("0", gc(xdtoaf(expm1f(-0.))));
EXPECT_STREQ("NAN", gc(xdtoaf(expm1f(NAN))));
EXPECT_STREQ("-1", gc(xdtoaf(expm1f(-INFINITY))));
EXPECT_STREQ("INFINITY", gc(xdtoaf(expm1f(INFINITY))));
/* EXPECT_STREQ("-INFINITY", gc(xdtoaf(expm1f(-132098844872390)))); */
/* EXPECT_STREQ("INFINITY", gc(xdtoaf(expm1f(132098844872390)))); */
}