62 lines
3.0 KiB
C
62 lines
3.0 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=8 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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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#ifndef COSMOPOLITAN_LIBC_STR_INTERNAL_H_
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#define COSMOPOLITAN_LIBC_STR_INTERNAL_H_
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#ifndef __STRICT_ANSI__
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#include "libc/str/str.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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hidden extern const uint32_t kSha256Tab[64];
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extern const struct TpEncode {
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uint8_t mark;
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uint8_t len;
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} kTpDecoderRing[32];
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forceinline struct TpEncode UseTpDecoderRing(wint_t c) {
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unsigned msb;
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if (c) {
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asm("bsr\t%1,%0" : "=r"(msb) : "rm"(c) : "cc");
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} else {
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msb = 0;
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}
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return kTpDecoderRing[msb];
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}
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nodebuginfo forceinline bool32 ismoar(wint_t c) {
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return (c & 0b11000000) == 0b11000000;
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}
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nodebuginfo forceinline bool32 iscont(wint_t c) {
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return (c & 0b11000000) == 0b10000000;
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}
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char *strstr$sse42(const char *, const char *) strlenesque hidden;
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char16_t *strstr16$sse42(const char16_t *, const char16_t *) strlenesque hidden;
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void *memmem$sse42(const void *, size_t, const void *,
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size_t) strlenesque hidden;
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void sha256$x86(uint32_t[hasatleast 8], const uint8_t[hasatleast 64],
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uint32_t) hidden;
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* !ANSI */
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#endif /* COSMOPOLITAN_LIBC_STR_INTERNAL_H_ */
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