span.cpp raw

   1  // Copyright (c) 2020-present The Bitcoin Core developers
   2  // Distributed under the MIT software license, see the accompanying
   3  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
   4  
   5  #include <span.h>
   6  #include <test/fuzz/FuzzedDataProvider.h>
   7  #include <test/fuzz/fuzz.h>
   8  #include <test/fuzz/util.h>
   9  
  10  #include <cassert>
  11  #include <cstddef>
  12  #include <cstdint>
  13  #include <string>
  14  #include <vector>
  15  
  16  FUZZ_TARGET(span)
  17  {
  18      FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
  19  
  20      std::string str = fuzzed_data_provider.ConsumeBytesAsString(32);
  21      const std::span<const char> span{str};
  22      (void)span.data();
  23      (void)span.begin();
  24      (void)span.end();
  25      if (span.size() > 0) {
  26          const std::ptrdiff_t idx = fuzzed_data_provider.ConsumeIntegralInRange<std::ptrdiff_t>(0U, span.size() - 1U);
  27          (void)span.first(idx);
  28          (void)span.last(idx);
  29          (void)span.subspan(idx);
  30          (void)span.subspan(idx, span.size() - idx);
  31          (void)span[idx];
  32      }
  33  }
  34