计算符合pow要求的最小值

genNonce.cpp

        CBlock block;
        block.nNonce   = 2084731820;
        block.vtx.push_back(txNew);
        block.hashPrevBlock = 0;
        block.hashMerkleRoot = block.BuildMerkleTree();
        block.nVersion = 1;
        block.nTime    = 1409745976;
        block.nBits    = 0x1e0ffff0;
       
        #if 1
        while(1){
           if( CheckProofOfWork(block.GetPoWHash(), block.nBits) ){
                printf("find nNonce %ld\n", block.nNonce);
                break;
            }else{
                block.nNonce+=1;
            }
        }
        #endif