1 /////////////////////////////////////////////////////////////////////////////// 2 // 3 /// \file vli_size.c 4 /// \brief Calculates the encoded size of a variable-length integer 5 // 6 // Author: Lasse Collin 7 // 8 // This file has been put into the public domain. 9 // You can do whatever you want with this file. 10 // 11 /////////////////////////////////////////////////////////////////////////////// 12 13 #include "common.h" 14 15 16 extern LZMA_API(uint32_t) lzma_vli_size(lzma_vli vli)17lzma_vli_size(lzma_vli vli) 18 { 19 if (vli > LZMA_VLI_MAX) 20 return 0; 21 22 uint32_t i = 0; 23 do { 24 vli >>= 7; 25 ++i; 26 } while (vli != 0); 27 28 assert(i <= LZMA_VLI_BYTES_MAX); 29 return i; 30 } 31