public void CalcBLFreq()

in src/ICSharpCode.SharpZipLib/Zip/Compression/DeflaterHuffman.cs [349:405]

54 lines of code
10 McCabe index (conditional complexity)


			public void CalcBLFreq(Tree blTree)
			{
				int max_count;               /* max repeat count */
				int min_count;               /* min repeat count */
				int count;                   /* repeat count of the current code */
				int curlen = -1;             /* length of current code */

				int i = 0;
				while (i < numCodes)
				{
					count = 1;
					int nextlen = length[i];
					if (nextlen == 0)
					{
						max_count = 138;
						min_count = 3;
					}
					else
					{
						max_count = 6;
						min_count = 3;
						if (curlen != nextlen)
						{
							blTree.freqs[nextlen]++;
							count = 0;
						}
					}
					curlen = nextlen;
					i++;

					while (i < numCodes && curlen == length[i])
					{
						i++;
						if (++count >= max_count)
						{
							break;
						}
					}

					if (count < min_count)
					{
						blTree.freqs[curlen] += (short)count;
					}
					else if (curlen != 0)
					{
						blTree.freqs[REP_3_6]++;
					}
					else if (count <= 10)
					{
						blTree.freqs[REP_3_10]++;
					}
					else
					{
						blTree.freqs[REP_11_138]++;
					}
				}
			}