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// |
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// A very simple calculator |
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// |
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#include <fmt/core.h> |
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#include <mathfunctions/MathFunctions.h> |
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#include <exception> |
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#include <iostream> |
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#include <string> |
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auto main(int argc, char* argv[]) -> int { |
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✗✓ |
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if (argc < 2) { |
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fmt::print(stderr, "Usage: {} number\n", *argv); |
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return 0; // Note: not an error, just a hint ;-) |
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} |
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// convert input to double |
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double inputValue{1.0}; |
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try { |
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✓✗✓✗
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inputValue = std::stod(argv[1]); // NOLINT(cppcoreguidelines-pro-bounds-pointer-arithmetic) |
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✗✗ |
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} catch (const std::exception& e) { |
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fmt::print(stderr, "Oops: {}; this is not valid number: {}!\n", e.what(), argv[1]); |
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return 0; |
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} |
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// calculate square root |
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const double sqrt = MathFunctions::sqrt(inputValue); |
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fmt::print("The square root of {} is {}\n", inputValue, sqrt); |
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// calculate sum |
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const double sum = MathFunctions::add(inputValue, inputValue); |
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fmt::print("{0} + {0} = {1}\n", inputValue, sum); |
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// calculate difference |
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const double dif = MathFunctions::dif(inputValue, inputValue); |
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fmt::print("{0} - {0} = {1}\n", inputValue, dif); |
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// calculate product |
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const double mul = MathFunctions::mul(inputValue, inputValue); |
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fmt::print("{0} * {0} = {1}\n", inputValue, mul); |
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// calculate quotient |
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const double quo = MathFunctions::quo(inputValue, inputValue); |
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fmt::print("{0} / {0} = {1}\n", inputValue, quo); |
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return 0; |
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} |