crc32              23 contrib/libtests/fakepng.c    crc = crc32(0, Z_NULL, 0);
crc32              24 contrib/libtests/fakepng.c    put_uLong(crc32(crc, chunk, length));
crc32            2461 contrib/libtests/pngvalid.c    uLong crc = crc32(0, buffer+4, datalen+4);
crc32              23 contrib/tools/checksum-icc.c    uLong c32 = crc32(0, NULL, 0);
crc32              40 contrib/tools/checksum-icc.c       c32 = crc32(c32, &b, 1);
crc32              79 contrib/tools/png-fix-itxt.c       crc = crc32(0, Z_NULL, 0);
crc32              88 contrib/tools/png-fix-itxt.c       crc = crc32(crc, buf+4, (uInt)length+4);
crc32             108 contrib/tools/png-fix-itxt.c         crc = crc32(crc, buf+7+length, 1);
crc32             105 png.c             png_ptr->crc = (png_uint_32)crc32(0, Z_NULL, 0);
crc32             146 png.c                   crc = crc32(crc, ptr, safe_length);
crc32            2272 png.c                               crc = crc32(0, NULL, 0);
crc32            2273 png.c                               crc = crc32(crc, profile, length);