mirror of
https://github.com/jart/cosmopolitan.git
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51 lines
2.8 KiB
C
51 lines
2.8 KiB
C
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/*-*- 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/stdio/stdio.h"
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#include "third_party/gdtoa/gdtoa.h"
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const char kDoubleBits[] = "\
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┌sign\n\
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│ ┌exponent\n\
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│ │ ┌fraction\n\
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│ │ │\n\
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│┌┴────────┐┌┴─────────────────────────────────────────────────┐\n";
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const char kLongDoubleBits[] = "\
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┌sign\n\
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│ ┌exponent\n\
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│ │ ┌intpart\n\
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│ │ │ ┌fraction\n\
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│ │ │ │\n\
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│┌┴────────────┐│┌┴────────────────────────────────────────────────────────────┐\n";
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int main(int argc, char *argv[]) {
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int i;
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union {
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double f;
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uint64_t i;
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} u;
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if (argc <= 1) return 1;
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fputs(kDoubleBits, stdout);
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for (i = 1; i < argc; ++i) {
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u.f = strtod(argv[i], 0);
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printf("%064lb %.15g\n", u.i, u.f);
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}
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return 0;
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}
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