(C++) std::logical\_not

January 11, 2018 · View on GitHub

 

 

 

 

 

(C++) std::logical_not

 

std::logical_not is a functor that performs a operator! on an element.

 

#include <algorithm> #include <cassert> #include <functional> #include <vector> int main() {   std::vector<bool> v; //Prefer std::bitset of boost::dynamic bitset   v.push_back(true);   v.push_back(false);   assert(v.size() == 2);   assert(v[0] == true );   assert(v[1] == false);   std::vector<bool> w; //Prefer std::bitset of boost::dynamic bitset   //Use std::logical_not on the elements of v,   //append the result to w   std::transform(     v.begin(),     v.end(),     std::back_inserter(w),     std::logical_not<bool>());   //Check if std::logical_not works as expected   assert(w.size() == 2);   assert(w[0] == false);   assert(w[1] == true ); }