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80 lines
1.8 KiB
C++
80 lines
1.8 KiB
C++
Fahrenheit-Celsius converter
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#include <iostream.h>
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#include <iomanip.h>
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#include <stdlib.h>
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void c_to_f(void);
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void f_to_c(void);
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void
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main(void)
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{
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int choice;
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char again;
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do
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{
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system("CLS");
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cout << setw(10) <<" "<< "What conversion would you like to make?\n"; // menu
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cout << setw(20) <<" "<< "1. Celsius to Fahrenheit\n\n"; // make a choice which function to use.
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cout << setw(20) <<" "<< "2. Fahrenheit to celsius\n\n";
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cin >> choice;
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switch(choice) // go to chosen function.
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{
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case 1 :
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{
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c_to_f();
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break;
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}
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case 2 :
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{
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f_to_c();
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break;
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}
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default :
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{
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cout << setw(10) <<" "<< "you must enter 1 or 2 "<< endl ; // validate and correct input of function choice.
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}
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}
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cout << setw(10) <<" "<< "Do you wish to do another conversion? y for yes, n for no "; // rerun loop on y for yes
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cin >> again;
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}while (again == 'Y' || again =='y');
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}
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void c_to_f(void)
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{
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system("CLS"); // clear screen for function data.
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int temp,fahrenheit;
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cout << "\n\n\n";
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cout << setw(10) <<" "<< "Enter the temperature in whole degrees celsius. \a";
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cin >> temp;
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fahrenheit = ((temp * 9) / 5) + 32;
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cout << endl << setw(10) <<" "<< temp << " degrees celsius is " << fahrenheit << " degrees fahrenheit \a\n\n\n";
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}
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void f_to_c(void)
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{
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system("CLS"); // clear screen for function data.
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int temp,celsius;
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cout << "\n\n\n";
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cout << setw(10) <<" "<< "Enter the temperature in whole degrees fahrenheit. \a";
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cin >> temp;
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celsius = ((temp - 32) * 5) / 9;
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cout << endl <<setw(10) <<" "<< temp << " degrees fahrenheit is " << celsius << " degrees celsius \a\n\n\n";
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}
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