How do I interoperate with C APIs std::bitset in C++?

In C++, std::bitset provides a way to manage and manipulate a fixed-size sequence of bits. When interworking with C APIs, you may need to convert between std::bitset and a suitable C representation, such as an integer or byte array. This allows seamless communication between C++ and C code while maintaining the efficiency of bit-level operations.

Here’s an example of how to interoperate with C APIs using std::bitset:

#include <bitset> #include <iostream> extern "C" { void processBits(unsigned int bits) { std::bitset<32> bitset(bits); std::cout << "Bitset representation: " << bitset << std::endl; } } int main() { std::bitset<32> myBits("10101010101010101010101010101010"); unsigned int c_bits = static_cast<unsigned int>(myBits.to_ulong()); processBits(c_bits); return 0; }

C++ std::bitset C APIs interoperate bit manipulation

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