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Justine Tunney 2020-06-15 07:18:57 -07:00
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libc/str/internal.h Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=8 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#ifndef COSMOPOLITAN_LIBC_STR_INTERNAL_H_
#define COSMOPOLITAN_LIBC_STR_INTERNAL_H_
#include "libc/str/str.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
hidden extern const uint32_t kSha256Tab[64];
extern const struct TpEncode {
uint8_t mark;
uint8_t len;
} kTpDecoderRing[32];
forceinline struct TpEncode UseTpDecoderRing(wint_t c) {
unsigned msb;
if (c) {
asm("bsr\t%1,%0" : "=r"(msb) : "rm"(c) : "cc");
} else {
msb = 0;
}
return kTpDecoderRing[msb];
}
nodebuginfo forceinline bool32 ismoar(wint_t c) {
return (c & 0b11000000) == 0b11000000;
}
nodebuginfo forceinline bool32 iscont(wint_t c) {
return (c & 0b11000000) == 0b10000000;
}
extern const uint32_t kCrc32Tab[256];
char *strstr$sse42(const char *, const char *) strlenesque hidden;
char16_t *strstr16$sse42(const char16_t *, const char16_t *) strlenesque hidden;
void *memmem$sse42(const void *, size_t, const void *,
size_t) strlenesque hidden;
uint32_t crc32c$sse42(uint32_t, const void *, size_t) strlenesque hidden;
uint32_t crc32$pclmul(uint32_t, const void *, size_t) hidden;
void sha256$x86(uint32_t[hasatleast 8], const uint8_t[hasatleast 64],
uint32_t) hidden;
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_STR_INTERNAL_H_ */