mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-07 15:03:34 +00:00
a4b455185b
Renaming gc() to _gc() was a mistake since the better thing to do is put it behind the _COSMO_SOURCE macro. We need this change because I haven't wanted to use my amazing garbage collector ever since we renamed it. You now need to define _COSMO_SOURCE yourself when using amalgamation header and cosmocc users need to pass the -mcosmo flag to get the gc() function Some other issues relating to cancelation have been fixed along the way. We're also now putting cosmocc in a folder named `.cosmocc` so it can be more safely excluded by grep --exclude-dir=.cosmocc --exclude-dir=o etc.
63 lines
3.4 KiB
C
63 lines
3.4 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et 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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double _exp2(double) asm("exp2");
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float _exp2f(float) asm("exp2f");
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long double _exp2l(long double) asm("exp2l");
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TEST(exp2l, test) {
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EXPECT_STREQ("1", gc(xdtoal(_exp2l(0))));
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EXPECT_STREQ("1", gc(xdtoal(_exp2l(-0.))));
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EXPECT_STREQ("INFINITY", gc(xdtoal(_exp2l(INFINITY))));
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EXPECT_STREQ("0", gc(xdtoal(_exp2l(-INFINITY))));
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EXPECT_STREQ("NAN", gc(xdtoal(_exp2l(NAN))));
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EXPECT_STREQ("0", gc(xdtoal(_exp2l(-132098844872390))));
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EXPECT_STREQ("INFINITY", gc(xdtoal(_exp2l(132098844872390))));
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}
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TEST(exp2, test) {
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EXPECT_STREQ("1", gc(xdtoa(_exp2(0))));
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EXPECT_STREQ("1", gc(xdtoa(_exp2(-0.))));
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EXPECT_STREQ("INFINITY", gc(xdtoa(_exp2(INFINITY))));
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EXPECT_STREQ("0", gc(xdtoa(_exp2(-INFINITY))));
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EXPECT_STREQ("NAN", gc(xdtoa(_exp2(NAN))));
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EXPECT_STREQ("0", gc(xdtoa(_exp2(-132098844872390))));
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EXPECT_STREQ("INFINITY", gc(xdtoa(_exp2(132098844872390))));
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}
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TEST(exp2f, test) {
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EXPECT_STREQ("1", gc(xdtoaf(_exp2f(0))));
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EXPECT_STREQ("1", gc(xdtoaf(_exp2f(-0.))));
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EXPECT_STREQ("INFINITY", gc(xdtoaf(_exp2f(INFINITY))));
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EXPECT_STREQ("0", gc(xdtoaf(_exp2f(-INFINITY))));
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EXPECT_STREQ("NAN", gc(xdtoaf(_exp2f(NAN))));
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EXPECT_STREQ("0", gc(xdtoaf(_exp2f(-132098844872390))));
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EXPECT_STREQ("INFINITY", gc(xdtoaf(_exp2f(132098844872390))));
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}
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BENCH(_exp2l, bench) {
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EZBENCH2("exp2", donothing, _exp2(.7)); /* ~6ns */
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EZBENCH2("exp2f", donothing, _exp2f(.7)); /* ~5ns */
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EZBENCH2("exp2l", donothing, _exp2l(.7)); /* ~30ns */
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}
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