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3rdparty/boost_1_81_0/libs/uuid/test/digestutils.hpp 2.04 KB
73ef4ff3   Hu Chunming   提交三方库
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  //
  // Copyright (C) 2019 James E. King III
  //
  // Permission to copy, use, modify, sell and
  // distribute this software is granted provided this copyright notice appears
  // in all copies. This software is provided "as is" without express or implied
  // warranty, and with no claim as to its suitability for any purpose.
  //
  // Distributed under the Boost Software License, Version 1.0. (See
  // accompanying file LICENSE_1_0.txt or copy at
  // https://www.boost.org/LICENSE_1_0.txt)
  //
  
  #ifndef BOOST_UUID_TEST_ENDIAN_2019
  #define BOOST_UUID_TEST_ENDIAN_2019
  
  #include <boost/predef/other/endian.h>
  
  namespace boost {
  namespace uuids {
  namespace test {
  
  //
  // A utility to copy a raw digest out from one of the detail hash functions
  // to a byte string for comparisons in testing to known values.
  //
  static void copy_raw_digest(unsigned char* out, const unsigned int *in, size_t inlen)
  {
      for (size_t chunk = 0; chunk < inlen; ++chunk)
      {
          const unsigned char * cin = reinterpret_cast<const unsigned char *>(&in[chunk]);
          for (size_t byte = 0; byte < 4; ++byte)
          {
  #if BOOST_ENDIAN_LITTLE_BYTE
              *out++ = *(cin + (3-byte));
  #else
              *out++ = *(cin + byte);
  #endif
          }
      }
  }
  
  //
  // A utility to compare and report two raw hashes
  //
  static void test_digest_equal_array(char const * file, int line, char const * function,
                               const unsigned char *lhs,
                               const unsigned char *rhs,
                               size_t len)
  {
      for (size_t i=0; i<len; i++) {
          if ( lhs[i] != rhs[i]) {
              std::cerr << file << "(" << line << "): digest [";
              for (size_t l=0; l<len; l++) {
                  std::cerr << std::hex << (int)lhs[l];
              }
  
              std::cerr << "] not equal [";
              for (size_t r=0; r<len; r++) {
                  std::cerr << std::hex << (int)rhs[r];
              }
              std::cerr << "] in function '" << function << "'" << std::endl;
              ++boost::detail::test_errors();
              return;
          }
      }
  }
  
  }
  }
  }
  
  #endif