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  1. #include <boost/iterator/transform_iterator.hpp>
  2. #include <boost/bind.hpp>
  3. #include <vector>
  4. #include <algorithm>
  5. #include <iostream>
  6. struct S
  7. {
  8.     int i;
  9.     char *s;
  10.     float f;
  11. };
  12.  
  13. int main()
  14. {
  15.     S a[] = {{10, NULL, 2.1},
  16.              {11, NULL, 0.1},
  17.              {12, NULL, 1.1}};
  18.     std::vector<S> v(a, a+3);
  19.     std::cout << *std::min_element(
  20.                     boost::make_transform_iterator(v.begin(), boost::bind(&S::f, _1)),
  21.                     boost::make_transform_iterator(v.end(), boost::bind(&S::f, _1))
  22.                   ) << '\n';
  23. }
  24.  
Success #stdin #stdout 0s 2856KB
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0.1
https://ideone.com/jgcHr
language:
C++ (gcc 8.3)
created:
13 years ago
visibility:
public

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