René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"plain old C, to be called via ctypes","articleBody":"we can format this a sa pr later, but it is this thing:\r\n```\r\nunsigned long long count_double(char *str) {\r\n    char *i, c1, c2;\r\n    unsigned long long  count = 0;\r\n\r\n    c1 = *str;\r\n    c2 = *(str + 1);\r\n    for(i = str+1; c2 = *i; i++) {\r\n        count += (c1 == c2);\r\n        c1 = c2;\r\n    }\r\n    return count;\r\n}\r\n```\r\nBuild with:\r\ngcc -shared -o libblacount.so -fPIC blacount.c\r\n\r\nAnd prepare to use from Python with:\r\n \r\nimport ctypes\r\nblacount = ctypes.cdll.LoadLibrary(\"./libblacount.so\")\r\nblacount.count_double.argtypes = [ctypes.c_char_p]\r\nblacount.count_double.restype = ctypes.c_uint64\r\n\r\n(it counts byte-strings only)","author":{"url":"https://github.com/jsbueno","@type":"Person","name":"jsbueno"},"datePublished":"2017-11-17T05:01:59.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/4/rust-python-example/issues/4"}