698 static unsigned append_symbol_coins(Coin* coins, const unsigned* frequencies, unsigned numcodes, si…  in append_symbol_coins()  argument
704     if(frequencies[i] != 0) /*only include symbols that are present*/  in append_symbol_coins()
706       coins[j].weight = frequencies[i] / (float)sum;  in append_symbol_coins()
714 unsigned lodepng_huffman_code_lengths(unsigned* lengths, const unsigned* frequencies,  in lodepng_huffman_code_lengths()  argument
729     if(frequencies[i] > 0)  in lodepng_huffman_code_lengths()
732       sum += frequencies[i];  in lodepng_huffman_code_lengths()
751       if(frequencies[i])  in lodepng_huffman_code_lengths()
777     error = append_symbol_coins(coins, frequencies, numcodes, sum);  in lodepng_huffman_code_lengths()
807           error = append_symbol_coins(coins + numcoins, frequencies, numcodes, sum);  in lodepng_huffman_code_lengths()
834 static unsigned HuffmanTree_makeFromFrequencies(HuffmanTree* tree, const unsigned* frequencies,  in HuffmanTree_makeFromFrequencies()  argument
838   while(!frequencies[numcodes - 1] && numcodes > mincodes) numcodes--; /*trim zeroes*/  in HuffmanTree_makeFromFrequencies()
846   error = lodepng_huffman_code_lengths(tree->lengths, frequencies, numcodes, maxbitlen);  in HuffmanTree_makeFromFrequencies()