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