327 /*buffer must have at least 4 allocated bytes available*/
457   unsigned buffer; /*buffer for reading bits. NOTE: 'unsigned' must support at least 32 bits*/
477 Ensures the reader can at least read nbits bits in one or more readBits calls,
717     /* freeing tree->table values is done at a higher scope */  in HuffmanTree_makeTable()
778     appear at all, but such huffman tree could still exist (e.g. if distance  in HuffmanTree_makeTable()
958     need to recurse if we're at the last one (this gives measurable speedup)*/  in boundaryPM()
989   /*ensure at least two present symbols. There should be at least one symbol  in lodepng_huffman_code_lengths()
991   make these work as well ensure there are at least two symbols. The  in lodepng_huffman_code_lengths()
1095 returns the code. The bit reader must already have been ensured at least 15 bits
1274   while(!error) /*decode all symbols until end reached, breaks at end code*/ {  in inflateHuffmanBlock()
1859   /*This while loop never loops due to a break at the end, it is here to  in deflateDynamic()
1885     frequencies_ll[256] = 1; /*there will be exactly 1 end code, at the end of the block*/  in deflateDynamic()
1890 …/*2, not 1, is chosen for mincodes: some buggy PNG decoders require at least 2 symbols in the dist…  in deflateDynamic()
1957     /*trim zeros at the end (using CLCL_ORDER), but minimum size must be 4 (see HCLEN below)*/  in deflateDynamic()
2148     /*at least 5552 sums can be done before the sums overflow, saving a lot of module divisions*/  in update_adler32()
2519     /* Is PNG magic header at start of PNG file. Jump to first actual chunk. */  in lodepng_chunk_next()
2535     /* Is PNG magic header at start of PNG file. Jump to first actual chunk. */  in lodepng_chunk_next_const()
2588 the data is at chunk + 8. To finalize chunk, add the data, then use
4006  end at a full byte
4026     /*bits padded if needed to fill full byte at end of each scanline*/  in Adam7_getpassvalues()
4028     /*only padded at end of reduced image*/  in Adam7_getpassvalues()
4147 …adds too much code. Whether this actually speeds anything up at all depends on compiler and settin…  in unfilterScanline()
4233  reduced images so that each reduced image starts at a byte.
4286 …to be removed (except at last scanline of (Adam7-reduced) image) before working with pure image bu…  in removePaddingBits()
4337       move bytes instead of bits or move not at all*/  in postProcessScanlines()
4340 …      bits between the different reduced images: each reduced image still starts nicely at a byte*/  in postProcessScanlines()
4795   /*loop through the chunks, ignoring unknown chunks and stopping at IEND chunk.  in decodeGeneric()
4796   IDAT data is put at the start of the in buffer*/  in decodeGeneric()
5664  reduced image starts at a byte.
6172     case 30: return "chunk length too large, chunk broken off at end of file";  in lodepng_error_text()
6209 …d result in the inability of a deflated block to ever contain an end code. It must be at least 1.*/  in lodepng_error_text()
6226     case 81: return "lazy matching at pos 0 is impossible";  in lodepng_error_text()