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std::countr_zero
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#include <bit> #include <bitset> #include <cstdint> #include <initializer_list> #include <iostream> Â int main() { for (std::uint8_t i : { 0, 0b11111111, 0b00011100 }) { std::cout << "countr_zero(0b" << std::bitset<8>(i) << ") = " << std::countr_zero(i) << '\n'; } }
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countr_zero(0b00000000) = 8 countr_zero(0b11111111) = 0 countr_zero(0b00011100) = 2
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