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Organize windows projects and create a example for Unix like systems #9

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Merged
Samuel-de-Oliveira merged 4 commits into The-Young-Programmer:main from Samuel-de-Oliveira:newbranch
Nov 15, 2022
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15 changes: 15 additions & 0 deletions Unix_System_examples/Basic Calculator (TUI)/README.md
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# Basic Calculator (TUI)

## Compilation:
Use the `m̀ake` command to compile

## Usage
You have 4 operatios `plus` `minus` `times` `devide`

```bash
# The hardest math problem.
./calculator 6 times 3
```

the output should be a simple `18`

33 changes: 33 additions & 0 deletions Unix_System_examples/Basic Calculator (TUI)/main.cpp
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#include <iostream>
#include <string>
#include <sstream>

// Parse Float
float parseFloat( const std::string &str ) {

/* All the argv arguments is a string
* Because of this is need use a parse
* float function.
*/

std::stringstream ss(str);
float num;
ss >> num;
return num;

}


int main( int argc, char** argv ) {

const std::string Operation(argv[2]); // take the second argument before the "./calculator"

if (Operation == "plus") std::cout << parseFloat(argv[1]) + parseFloat(argv[3]) << '\n'; // Plus
else if (Operation == "minus") std::cout << parseFloat(argv[1]) - parseFloat(argv[3]) << '\n'; // Minus
else if (Operation == "times") std::cout << parseFloat(argv[1]) * parseFloat(argv[3]) << '\n'; // Times
else if (Operation == "divide") std::cout << parseFloat(argv[1]) / parseFloat(argv[3]) << '\n'; // Divide
else std::cout << "Invalid operation\n"; // Invalid operation message

return 0;

}
11 changes: 11 additions & 0 deletions Unix_System_examples/Basic Calculator (TUI)/makefile
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TARGET = calculator
FILE = main.cpp
COMPILER = /usr/bin/g++

.PHONY: all clean

all:
$(COMPILER) $(FILE) -o $(TARGET)

clean:
rm -rf $(TARGET)
File renamed without changes.

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