[Solved] How to convert string expression to boolean in c++? [closed]

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In C++, you can utilize lambda functions to achieve something similar:

#include <iostream>

using CmpFunc = bool(float, float);

CmpFunc* condition(char op) {
  switch (op) {
    case '>':
      return [](float a, float b) { return a > b; };
    case '<':
      return [](float a, float b) { return a < b; };
    case '=':
      return [](float a, float b) { return a == b; };
    default:
      return [](float a, float b) { return false; };
  }
}

int main() {
  auto const cmp = condition('>');
  if (cmp(7, 6)) {
    std::cout << "a > b";
  }
}

solved How to convert string expression to boolean in c++? [closed]