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Last change
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libs/liblzma-5.4.1: Export to OSE, bugref:10254
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File size:
630 bytes
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| 1 | ///////////////////////////////////////////////////////////////////////////////
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| 2 | //
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| 3 | /// \file vli_size.c
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| 4 | /// \brief Calculates the encoded size of a variable-length integer
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| 5 | //
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| 6 | // Author: Lasse Collin
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| 7 | //
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| 8 | // This file has been put into the public domain.
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| 9 | // You can do whatever you want with this file.
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| 10 | //
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| 11 | ///////////////////////////////////////////////////////////////////////////////
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| 12 |
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| 13 | #include "common.h"
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| 14 |
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| 15 |
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| 16 | extern LZMA_API(uint32_t)
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| 17 | lzma_vli_size(lzma_vli vli)
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| 18 | {
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| 19 | if (vli > LZMA_VLI_MAX)
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| 20 | return 0;
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| 21 |
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| 22 | uint32_t i = 0;
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| 23 | do {
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| 24 | vli >>= 7;
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| 25 | ++i;
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| 26 | } while (vli != 0);
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| 27 |
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| 28 | assert(i <= LZMA_VLI_BYTES_MAX);
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| 29 | return i;
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| 30 | }
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