| /////////////////////////////////////////////////////////////////////////////// |
| // |
| /// \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_VALUE_MAX) |
| return 0; |
| |
| uint32_t i = 0; |
| do { |
| vli >>= 7; |
| ++i; |
| } while (vli != 0); |
| |
| assert(i <= LZMA_VLI_BYTES_MAX); |
| return i; |
| } |