cosmopolitan/libc/str/tpdecode.ncabi.c

40 lines
2.4 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/errno.h"
#include "libc/str/str.h"
#include "libc/str/tpdecode.internal.h"
#include "libc/str/tpdecodecb.internal.h"
forceinline int getbyte(void *arg, uint32_t i) {
return ((const unsigned char *)arg)[i];
}
/**
* Thompson-Pike Varint Decoder.
*
* @param s is a NUL-terminated string
* @return number of bytes successfully consumed or -1 w/ errno
* @note synchronization is performed
* @see libc/str/tpdecodecb.internal.h (for implementation)
* @deprecated
*/
int(tpdecode)(const char *s, wint_t *out) {
return tpdecodecb(out, (unsigned char)s[0], getbyte, (void *)s);
}