mirror of
https://github.com/jart/cosmopolitan.git
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40291c9db3
- 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
45 lines
3.1 KiB
C
45 lines
3.1 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/runtime/gc.h"
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#include "libc/testlib/testlib.h"
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#include "libc/x/x.h"
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void SetUp(void) {
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/* 8087 FPU Control Word
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IM: Invalid Operation ───────────────┐
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DM: Denormal Operand ───────────────┐│
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ZM: Zero Divide ───────────────────┐││
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OM: Overflow ─────────────────────┐│││
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UM: Underflow ───────────────────┐││││
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PM: Precision ──────────────────┐│││││
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PC: Precision Control ────────┐ ││││││
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{float,∅,double,long double} │ ││││││
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RC: Rounding Control ───────┐ │ ││││││
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{even, →-∞, →+∞, →0} │┌┤ ││││││
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┌┤││ ││││││
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d││││rr││││││*/
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int x87cw = 0b0000000000000000001101100001;
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asm volatile("fldcw\t%0" : /* no outputs */ : "m"(x87cw));
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}
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TEST(atanl, testLongDouble) {
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EXPECT_STREQ("NAN", gc(xdtoal(atanl(NAN))));
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EXPECT_STREQ(".7853981583974483", gc(xdtoal(atanl(.99999999))));
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}
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