1
0
Fork 0
mirror of https://git.tukaani.org/xz.git synced 2024-04-04 12:36:23 +02:00
xz-archive/src/liblzma/common/vli_size.c
Lasse Collin 13a74b78e3 Renamed constants:
- LZMA_VLI_VALUE_MAX -> LZMA_VLI_MAX
  - LZMA_VLI_VALUE_UNKNOWN -> LZMA_VLI_UNKNOWN
  - LZMA_HEADER_ERRRO -> LZMA_OPTIONS_ERROR
2008-09-13 12:10:43 +03:00

37 lines
1 KiB
C

///////////////////////////////////////////////////////////////////////////////
//
/// \file vli_size.c
/// \brief Calculates the encoded size of a variable-length integer
//
// Copyright (C) 2007-2008 Lasse Collin
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
///////////////////////////////////////////////////////////////////////////////
#include "common.h"
extern LZMA_API uint32_t
lzma_vli_size(lzma_vli vli)
{
if (vli > LZMA_VLI_MAX)
return 0;
uint32_t i = 0;
do {
vli >>= 7;
++i;
} while (vli != 0);
assert(i <= LZMA_VLI_BYTES_MAX);
return i;
}