cosmopolitan/test/libc/tinymath/exp2_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

56 lines
3.2 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 exp2l(x) exp2l(VEIL("t", (long double)(x)))
#define exp2(x) exp2(VEIL("x", (double)(x)))
#define exp2f(x) exp2f(VEIL("x", (float)(x)))
TEST(exp2l, test) {
EXPECT_STREQ("1", gc(xdtoal(exp2l(0))));
EXPECT_STREQ("1", gc(xdtoal(exp2l(-0.))));
EXPECT_STREQ("INFINITY", gc(xdtoal(exp2l(INFINITY))));
EXPECT_STREQ("0", gc(xdtoal(exp2l(-INFINITY))));
EXPECT_STREQ("NAN", gc(xdtoal(exp2l(NAN))));
EXPECT_STREQ("0", gc(xdtoal(exp2l(-132098844872390))));
EXPECT_STREQ("INFINITY", gc(xdtoal(exp2l(132098844872390))));
}
TEST(exp2, test) {
EXPECT_STREQ("1", gc(xdtoa(exp2(0))));
EXPECT_STREQ("1", gc(xdtoa(exp2(-0.))));
EXPECT_STREQ("INFINITY", gc(xdtoa(exp2(INFINITY))));
EXPECT_STREQ("0", gc(xdtoa(exp2(-INFINITY))));
EXPECT_STREQ("NAN", gc(xdtoa(exp2(NAN))));
EXPECT_STREQ("0", gc(xdtoa(exp2(-132098844872390))));
EXPECT_STREQ("INFINITY", gc(xdtoa(exp2(132098844872390))));
}
TEST(exp2f, test) {
EXPECT_STREQ("1", gc(xdtoaf(exp2f(0))));
EXPECT_STREQ("1", gc(xdtoaf(exp2f(-0.))));
EXPECT_STREQ("INFINITY", gc(xdtoaf(exp2f(INFINITY))));
EXPECT_STREQ("0", gc(xdtoaf(exp2f(-INFINITY))));
EXPECT_STREQ("NAN", gc(xdtoaf(exp2f(NAN))));
EXPECT_STREQ("0", gc(xdtoaf(exp2f(-132098844872390))));
EXPECT_STREQ("INFINITY", gc(xdtoaf(exp2f(132098844872390))));
}