boost-dynamic-bitset

问题 How can I write the actual bits of a vector of digits (for example: 65, 66, 67) into a file and then read them as well from dynamic_bitset object? 来源： https://stackoverflow.com/questions/65557606/how-to-write-and-read-bits-of-boost-dynamic-bitset-object-to-from-file

问题 How can I write the actual bits of a vector of digits (for example: 65, 66, 67) into a file and then read them as well? I have previous code as well but It doesn't work properly. Writing above (65, 66, 67) should result in these "100000110000101000011" bits but it outputs "001100010100001000001". Here is the link to previous question containing code. Reading the dynamic bitset written data from file cannot read the correct data How can I build write and read to/from file functions so that the

问题 So I have a vector which has three numbers. 65, 66, and 67. I am converting these numbers from int to binary and appending them in a string. the string becomes 100000110000101000011 (65, 66, 67 respectively). I am writing this data into a file through dynamic_bitset library. I have BitOperations class which does the reading and writing into file work. When I read the data from file instead of giving the above bits it gives me these 001100010100001000001 bits. Here is my BitOperations class:

问题 I am trying to insert boost::dynamic_bitset<> into boost::bimap . However, it is very slow as compared to inserting integers or strings. Minimal Example is given, the code of which is shown below // Example program #include <iostream> #include <string> #include <boost/bimap.hpp> #include <boost/dynamic_bitset.hpp> #include <boost/bimap/unordered_set_of.hpp> #include <boost/bimap/unordered_multiset_of.hpp> namespace std { template <typename Block, typename Alloc> struct hash<boost::dynamic

问题 I'd like to have an interface whose function returns a bitset: class IMyInterface { public: virtual std::bitset<100> GetBits() = 0; }; The problem is that I don't want to force the size of the bitset . So I think I have to use boost::dynamic_bitset instead: class IMyInterface { public: virtual boost::dynamic_bitset<> GetBits() = 0; }; I have heard that boost::dynamic_bitset is slower than std::bitset though. Is there any other way to avoid using dynamic_bitset and have an interface that

问题 How to serialize a class with a boost::dynamic_bitset member? #include <boost/archive/text_oarchive.hpp> #include <boost/archive/text_iarchive.hpp> #include <boost/dynamic_bitset.hpp> #include <boost/serialization/bitset.hpp> #include <sstream> class A { friend class boost::serialization::access; boost::dynamic_bitset<> x; template<class Archive> void serialize(Archive & ar, const unsigned int){ ar & x; } }; int main() { A a; std::stringstream ss; boost::archive::text_oarchive oa(ss); oa << a

问题 How can I initialize a boost::dynamic_bitset from std::bitset ? The simplest solution is a for loop: for(int i=0;i<bitset_size;i++) my_dynamic_bitset[i] = my_bitset[i]; Is there any shorter or faster way to do this? 来源： https://stackoverflow.com/questions/32326934/how-to-initialize-a-boostdynamic-bitset-from-stdbitset

问题 This code uses classes, the class rsa has a function set that is supposed to take 3 integers and 1 dynamic bitset. However the compiler return errors, I think they are all about the same thing: damage.cc: In function ‘int main()’: damage.cc:81:27: error: no matching function for call to ‘public_key::set(int, int, int, int)’ usr1.set (11, 5, 23, 00001); ^ damage.cc:81:27: note: candidate is: damage.cc:59:6: note: void rsa::set(int, int, int, const boost::dynamic_bitset<>&) void rsa::set(int p_

问题 I have a 7-byte/56-bit bitset that upon construction sets the first bit to one: boost::dynamic_bitset<> b(56, 1); After construction, I'd like to place an integer value (say 2019) into bits 4 through 15. I'm curious if there is a simple way within boost to do this without bitwise operations? Basically, I want to set a range of bits to an integer value that I know is small enough to fit into those bits. Thanks for any advice. 回答1: The boost::dynamic_bitset<> offers much less functionality. I

问题 Sort of a follow up to How does one store a vector<bool> or a bitset into a file, but bit-wise? Basically I am writing a bitset as a binary file with the follow code: boost::dynamic_bitset<boost::dynamic_bitset<>::block_type> filter; vector<boost::dynamic_bitset<>::block_type> filterBlocks(filter.num_blocks()); //populate vector blocks boost::to_block_range(filter, filterBlocks.begin()); ofstream myFile(filterFilePath.c_str(), ios::out | ios::binary); //write out each block for (vector<boost: