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https://github.com/jart/cosmopolitan.git
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2bd1e72d5a
We can put this back the moment someone requests it. Pain-free garbage collection for the C language is pretty cool. All it does is overwrite the return address with a trampoline that calls free(). It's not clear what it should be named if it's made a public API.
65 lines
3.5 KiB
C
65 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 2020 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/runtime/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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#define sinl(x) sinl(VEIL("t", (long double)(x)))
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#define sin(x) sin(VEIL("x", (double)(x)))
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#define sinf(x) sinf(VEIL("x", (float)(x)))
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TEST(sinl, test) {
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EXPECT_STREQ("NAN", gc(xdtoal(sinl(NAN))));
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EXPECT_STREQ("-NAN", gc(xdtoal(sinl(+INFINITY))));
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EXPECT_STREQ("-NAN", gc(xdtoal(sinl(-INFINITY))));
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EXPECT_STREQ(".479425538604203", gc(xdtoal(sinl(.5))));
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EXPECT_STREQ("-.479425538604203", gc(xdtoal(sinl(-.5))));
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EXPECT_STREQ(".8414709794048734", gc(xdtoal(sinl(.99999999))));
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/* EXPECT_STREQ("-.998836772397", gc(xdtoal(sinl(555555555555)))); */
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/* EXPECT_STREQ("1", gc(xdtoal(SINL(5.319372648326541e+255L)))); */
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}
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TEST(sin, test) {
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EXPECT_TRUE(isnan(sin(NAN)));
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EXPECT_TRUE(isnan(sin(+INFINITY)));
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EXPECT_TRUE(isnan(sin(-INFINITY)));
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EXPECT_STREQ("NAN", gc(xdtoa(sin(NAN))));
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EXPECT_STREQ(".479425538604203", gc(xdtoa(sin(.5))));
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EXPECT_STREQ("-.479425538604203", gc(xdtoa(sin(-.5))));
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EXPECT_STREQ(".479425538604203", gc(xdtoa(sin(.5))));
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EXPECT_STREQ("-.479425538604203", gc(xdtoa(sin(-.5))));
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}
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TEST(sinf, test) {
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EXPECT_TRUE(isnan(sinf(NAN)));
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EXPECT_TRUE(isnan(sinf(+INFINITY)));
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EXPECT_TRUE(isnan(sinf(-INFINITY)));
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EXPECT_STREQ("NAN", gc(xdtoaf(sinf(NAN))));
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EXPECT_STARTSWITH(".479426", gc(xdtoaf(sinf(.5f))));
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EXPECT_STARTSWITH("-.479426", gc(xdtoaf(sinf(-.5f))));
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EXPECT_STARTSWITH(".873283", gc(xdtoaf(sinf(555))));
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}
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BENCH(sinl, bench) {
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EZBENCH(donothing, sinl(0.7)); /* ~30ns */
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EZBENCH(donothing, sin(0.7)); /* ~35ns */
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EZBENCH(donothing, sinf(0.7f)); /* ~35ns */
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}
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