mirror of
https://github.com/jart/cosmopolitan.git
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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
67 lines
3.5 KiB
C
67 lines
3.5 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.internal.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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double _log10(double) asm("log10");
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float _log10f(float) asm("log10f");
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long double _log10l(long double) asm("log10l");
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TEST(log10l, test) {
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EXPECT_STREQ("1", gc(xdtoal(_log10l(10))));
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EXPECT_STREQ("NAN", gc(xdtoal(_log10l(NAN))));
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EXPECT_STREQ("0", gc(xdtoal(_log10l(1))));
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EXPECT_STREQ("INFINITY", gc(xdtoal(_log10l(INFINITY))));
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EXPECT_STREQ("-INFINITY", gc(xdtoal(_log10l(0))));
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EXPECT_STREQ("-INFINITY", gc(xdtoal(_log10l(-0.))));
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EXPECT_TRUE(isnan(_log10l(-1)));
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EXPECT_TRUE(isnan(_log10l(-2)));
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}
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TEST(log10, test) {
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EXPECT_STREQ(".301029995663981", gc(xdtoa(_log10(2))));
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EXPECT_STREQ("2", gc(xdtoa(_log10(100))));
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EXPECT_STREQ("NAN", gc(xdtoa(_log10(NAN))));
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EXPECT_STREQ("0", gc(xdtoa(_log10(1))));
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EXPECT_STREQ("INFINITY", gc(xdtoa(_log10(INFINITY))));
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EXPECT_STREQ("-INFINITY", gc(xdtoa(_log10(0))));
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EXPECT_STREQ("-INFINITY", gc(xdtoa(_log10(-0.))));
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EXPECT_TRUE(isnan(_log10(-1)));
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EXPECT_TRUE(isnan(_log10(-2)));
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}
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TEST(log10f, test) {
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EXPECT_STREQ("1", gc(xdtoaf(_log10f(10))));
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EXPECT_STREQ("NAN", gc(xdtoaf(_log10f(NAN))));
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EXPECT_STREQ("0", gc(xdtoaf(_log10f(1))));
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EXPECT_STREQ("INFINITY", gc(xdtoaf(_log10f(INFINITY))));
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EXPECT_STREQ("-INFINITY", gc(xdtoaf(_log10f(0))));
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EXPECT_STREQ("-INFINITY", gc(xdtoaf(_log10f(-0.))));
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EXPECT_TRUE(isnan(_log10f(-1)));
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EXPECT_TRUE(isnan(_log10f(-2)));
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}
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BENCH(log10, bench) {
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EZBENCH2("log10", donothing, _log10(.7)); // ~17ns
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EZBENCH2("log10f", donothing, _log10f(.7)); // ~15ns
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EZBENCH2("log10l", donothing, _log10l(.7)); // ~21ns
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}
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