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  1.     // User-defined infix operator framework
  2.  
  3.     template <typename LeftOperand, typename Operation>
  4.     struct LeftHelper
  5.     {
  6.         const LeftOperand& leftOperand;
  7.         const Operation& operation;
  8.         LeftHelper(const LeftOperand& leftOperand, const Operation& operation)
  9.             : leftOperand(leftOperand), operation(operation) {}
  10.     };
  11.  
  12.     template <typename LeftOperand, typename Operation >
  13.     auto operator < (const LeftOperand& leftOperand, Operation& operation)
  14.     {
  15.         return LeftHelper<LeftOperand, Operation>(leftOperand, operation);
  16.     }
  17.  
  18.     template <typename LeftOperand, typename Operation, typename RightOperand>
  19.     auto operator > (LeftHelper<LeftOperand, Operation> leftHelper, const RightOperand& rightOperand)
  20.     {
  21.         return leftHelper.operation(leftHelper.leftOperand, rightOperand);
  22.     }
  23.  
  24.     // Defining a new operator
  25.  
  26.     #include <cmath>
  27.     static auto pwr = [](const auto& operand1, const auto& operand2) { return std::pow(operand1, operand2); };
  28.  
  29.     // using it
  30.     #include <iostream>
  31.     int main() 
  32.     {
  33.        std::cout << (2 <pwr> 16) << std::endl;
  34.        return 0;
  35.     }
  36.  
Success #stdin #stdout 0s 3456KB
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https://ideone.com/fAWd98
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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