text: // Copyright (c) 2009-2010 Satoshi Nakamoto
  // Copyright (c) 2009-2018 The Vendetta Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #include <script/script_error.h>
  
  const char* ScriptErrorString(const ScriptError serror)
  {
      switch (serror)
      {
          case SCRIPT_ERR_OK:
              return "No error";
          case SCRIPT_ERR_EVAL_FALSE:
              return "Script evaluated without error but finished with a false/empty top stack element";
          case SCRIPT_ERR_VERIFY:
              return "Script failed an OP_VERIFY operation";
          case SCRIPT_ERR_EQUALVERIFY:
              return "Script failed an OP_EQUALVERIFY operation";
          case SCRIPT_ERR_CHECKMULTISIGVERIFY:
              return "Script failed an OP_CHECKMULTISIGVERIFY operation";
          case SCRIPT_ERR_CHECKSIGVERIFY:
              return "Script failed an OP_CHECKSIGVERIFY operation";
          case SCRIPT_ERR_NUMEQUALVERIFY:
              return "Script failed an OP_NUMEQUALVERIFY operation";
          case SCRIPT_ERR_SCRIPT_SIZE:
              return "Script is too big";
          case SCRIPT_ERR_PUSH_SIZE:
              return "Push value size limit exceeded";
          case SCRIPT_ERR_OP_COUNT:
              return "Operation limit exceeded";
          case SCRIPT_ERR_STACK_SIZE:
              return "Stack size limit exceeded";
          case SCRIPT_ERR_SIG_COUNT:
              return "Signature count negative or greater than pubkey count";
          case SCRIPT_ERR_PUBKEY_COUNT:
              return "Pubkey count negative or limit exceeded";
          case SCRIPT_ERR_BAD_OPCODE:
              return "Opcode missing or not understood";
          case SCRIPT_ERR_DISABLED_OPCODE:
              return "Attempted to use a disabled opcode";
          case SCRIPT_ERR_INVALID_STACK_OPERATION:
              return "Operation not valid with the current stack size";
          case SCRIPT_ERR_INVALID_ALTSTACK_OPERATION:
              return "Operation not valid with the current altstack size";
          case SCRIPT_ERR_OP_RETURN:
              return "OP_RETURN was encountered";
          case SCRIPT_ERR_UNBALANCED_CONDITIONAL:
              return "Invalid OP_IF construction";
          case SCRIPT_ERR_NEGATIVE_LOCKTIME:
              return "Negative locktime";
          case SCRIPT_ERR_UNSATISFIED_LOCKTIME:
              return "Locktime requirement not satisfied";
          case SCRIPT_ERR_SIG_HASHTYPE:
              return "Signature hash type missing or not understood";
          case SCRIPT_ERR_SIG_DER:
              return "Non-canonical DER signature";
          case SCRIPT_ERR_MINIMALDATA:
              return "Data push larger than necessary";
          case SCRIPT_ERR_SIG_PUSHONLY:
              return "Only non-push operators allowed in signatures";
          case SCRIPT_ERR_SIG_HIGH_S:
              return "Non-canonical signature: S value is unnecessarily high";
          case SCRIPT_ERR_SIG_NULLDUMMY:
              return "Dummy CHECKMULTISIG argument must be zero";
          case SCRIPT_ERR_MINIMALIF:
              return "OP_IF/NOTIF argument must be minimal";
          case SCRIPT_ERR_SIG_NULLFAIL:
              return "Signature must be zero for failed CHECK(MULTI)SIG operation";
          case SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS:
              return "NOPx reserved for soft-fork upgrades";
          case SCRIPT_ERR_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM:
              return "Witness version reserved for soft-fork upgrades";
          case SCRIPT_ERR_PUBKEYTYPE:
              return "Public key is neither compressed or uncompressed";
          case SCRIPT_ERR_CLEANSTACK:
              return "Extra items left on stack after execution";
          case SCRIPT_ERR_WITNESS_PROGRAM_WRONG_LENGTH:
              return "Witness program has incorrect length";
          case SCRIPT_ERR_WITNESS_PROGRAM_WITNESS_EMPTY:
              return "Witness program was passed an empty witness";
          case SCRIPT_ERR_WITNESS_PROGRAM_MISMATCH:
              return "Witness program hash mismatch";
          case SCRIPT_ERR_WITNESS_MALLEATED:
              return "Witness requires empty scriptSig";
          case SCRIPT_ERR_WITNESS_MALLEATED_P2SH:
              return "Witness requires only-redeemscript scriptSig";
          case SCRIPT_ERR_WITNESS_UNEXPECTED:
              return "Witness provided for non-witness script";
          case SCRIPT_ERR_WITNESS_PUBKEYTYPE:
              return "Using non-compressed keys in segwit";
          case SCRIPT_ERR_OP_CODESEPARATOR:
              return "Using OP_CODESEPARATOR in non-witness script";
          case SCRIPT_ERR_SIG_FINDANDDELETE:
              return "Signature is found in scriptCode";
          case SCRIPT_ERR_UNKNOWN_ERROR:
          case SCRIPT_ERR_ERROR_COUNT:
          default: break;
      }
      return "unknown error";
  }
  