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Commit 900e5fb

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Merge pull request #9 from Samuel-de-Oliveira/newbranch
Organize windows projects and create a example for Unix like systems
2 parents 1bed3b8 + 7df73cb commit 900e5fb

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# Basic Calculator (TUI)
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## Compilation:
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Use the `m̀ake` command to compile
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## Usage
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You have 4 operatios `plus` `minus` `times` `devide`
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```bash
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# The hardest math problem.
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./calculator 6 times 3
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```
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the output should be a simple `18`
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#include <iostream>
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#include <string>
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#include <sstream>
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// Parse Float
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float parseFloat( const std::string &str ) {
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/* All the argv arguments is a string
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* Because of this is need use a parse
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* float function.
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*/
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std::stringstream ss(str);
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float num;
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ss >> num;
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return num;
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}
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int main( int argc, char** argv ) {
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const std::string Operation(argv[2]); // take the second argument before the "./calculator"
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if (Operation == "plus") std::cout << parseFloat(argv[1]) + parseFloat(argv[3]) << '\n'; // Plus
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else if (Operation == "minus") std::cout << parseFloat(argv[1]) - parseFloat(argv[3]) << '\n'; // Minus
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else if (Operation == "times") std::cout << parseFloat(argv[1]) * parseFloat(argv[3]) << '\n'; // Times
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else if (Operation == "divide") std::cout << parseFloat(argv[1]) / parseFloat(argv[3]) << '\n'; // Divide
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else std::cout << "Invalid operation\n"; // Invalid operation message
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return 0;
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}
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TARGET = calculator
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FILE = main.cpp
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COMPILER = /usr/bin/g++
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.PHONY: all clean
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all:
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$(COMPILER) $(FILE) -o $(TARGET)
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clean:
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rm -rf $(TARGET)
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