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Add imaxdiv, wcscoll, getdtablesize (#639)
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5 changed files with 154 additions and 0 deletions
29
libc/calls/getdtablesize.c
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29
libc/calls/getdtablesize.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 2022 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/calls/calls.h"
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#include "libc/calls/internal.h"
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/**
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* Gets file descriptor table size.
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*
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* @return current limit on the number of open files per process
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*/
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int getdtablesize(void) {
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return g_fds.n;
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}
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32
libc/fmt/imaxdiv.c
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32
libc/fmt/imaxdiv.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 2022 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/fmt/conv.h"
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imaxdiv_t imaxdiv(intmax_t n, intmax_t d) {
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imaxdiv_t retval;
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retval.quot = n / d;
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retval.rem = n % d;
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// satisfy quot*denominator+rem == numerator
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if (n > 0 && retval.rem < 0) {
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retval.quot += 1;
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retval.rem -= d;
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}
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return (retval);
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}
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25
libc/fmt/wcscoll.c
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25
libc/fmt/wcscoll.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 2022 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/str/locale.h"
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#include "libc/str/str.h"
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#include "libc/thread/tls.h"
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int wcscoll(const wchar_t *p, const wchar_t *q) {
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return wcscoll_l(p, q, (locale_t)__get_tls()->tib_locale);
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}
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@ -66,6 +66,9 @@ char *nl_langinfo_l(nl_item item, locale_t loc)
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int idx = item & 65535;
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const char *str;
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if (!loc)
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return "";
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if (item == CODESET) return loc->cat[LC_CTYPE] ? "UTF-8" : "ASCII";
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/* _NL_LOCALE_NAME extension */
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65
test/libc/fmt/imaxdiv_test.c
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test/libc/fmt/imaxdiv_test.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 2022 Hugues Morisset │
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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/fmt/conv.h"
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#include "libc/limits.h"
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#include "libc/testlib/testlib.h"
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TEST(imaxdiv, test) {
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imaxdiv_t res;
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res = imaxdiv(-5, 3);
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EXPECT_EQ(-1, res.quot);
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EXPECT_EQ(-2, res.rem);
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res = imaxdiv(1, 1);
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EXPECT_EQ(1, res.quot);
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EXPECT_EQ(0, res.rem);
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res = imaxdiv(20, 10);
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EXPECT_EQ(2, res.quot);
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EXPECT_EQ(0, res.rem);
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res = imaxdiv(20, 11);
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EXPECT_EQ(1, res.quot);
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EXPECT_EQ(9, res.rem);
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res = imaxdiv(-20, -11);
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EXPECT_EQ(1, res.quot);
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EXPECT_EQ(-9, res.rem);
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res = imaxdiv(0, -11);
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EXPECT_EQ(0, res.quot);
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EXPECT_EQ(0, res.rem);
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res = imaxdiv(0, 11);
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EXPECT_EQ(0, res.quot);
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EXPECT_EQ(0, res.rem);
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res = imaxdiv(INT64_MIN, 1);
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EXPECT_EQ(INT64_MIN, res.quot);
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EXPECT_EQ(0, res.rem);
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res = imaxdiv(INT64_MAX, -1);
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EXPECT_EQ(-(INT64_MAX), res.quot);
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EXPECT_EQ(0, res.rem);
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res = imaxdiv(2387, 348);
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EXPECT_EQ(6, res.quot);
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EXPECT_EQ(299, res.rem);
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}
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