Snippets / c

#include <stdio.h>

float inchToFeet(float num) { return num / 12; }

float inchToMeter(float num) { return num * 0.0254; }

float centimeterToInch(float num) { return num * 0.393701; }

float kiloToMiles(float num) { return num * 0.621371; }

float poundToKg(float num) { return num * 0.453592; }

float ounceToGram(float num) { return num * 28.3495; }

float gallonToLiter(float num) { return num * 3.78541; }

float fluidOunceToMilliliter(float num) { return num * 29.5735; }

float fahrenheitToCelsius(float num) { return (num - 32) * 5 / 9; }

float celsiusToFahrenheit(float num) { return (num * 9 / 5) + 32; }

float sqFtToSqM(float num) { return num * 0.092903; }
float sqMToSqFt(float num) { return num * 10.7639; }

void lengthCalculator(int case_select, float (*conversionFunction)(float)) {
  float input;
  printf("To exit enter \"0\" \n");
  while (1) {
    float result;
    switch (case_select) {
    case 1:
      printf("Enter Inch: ");
      scanf("%f", &input);
      result = (*conversionFunction)(input);
      printf("%f inch = %f feet \n", input, result);
      break;
    case 2:
      printf("Enter Inch: ");
      scanf("%f", &input);
      result = (*conversionFunction)(input);
      printf("%f inch = %f meters \n", input, result);
      break;
    case 3:
      printf("Enter Centimeter: ");
      scanf("%f", &input);
      result = (*conversionFunction)(input);
      printf("%f centimeter = %f inches\n", input, result);
      break;
    case 4:
      printf("Enter Kilometer: ");
      scanf("%f", &input);
      result = (*conversionFunction)(input);
      printf("%f kilometer = %f miles \n", input, result);
      break;
    default:
      printf("Invalid conversion type! \n");
      break;
    }

    if (input == 0) {
      break;
    }
  }
}

void weightCalculator(int case_select, float (*conversionFunction)(float)) {
  float input;
  printf("To exit enter \"0\" \n");
  while (1) {
    float result;
    switch (case_select) {
    case 1:
      printf("Enter Pound: ");
      scanf("%f", &input);
      result = (*conversionFunction)(input);
      printf("%f pound(lb) = %f kg \n", input, result);
      break;
    case 2:
      printf("Enter Ounce: ");
      scanf("%f", &input);
      result = (*conversionFunction)(input);
      printf("%f ounce(oz) = %f grams \n", input, result);
      break;
    default:
      printf("Invalid conversion type! \n");
      break;
    }

    if (input == 0) {
      break;
    }
  }
}

void volumeCalculator(int case_select, float (*conversionFunction)(float)) {
  float input;
  printf("To exit enter \"0\" \n");
  while (1) {
    float result;
    switch (case_select) {
    case 1:
      printf("Enter Gallon: ");
      scanf("%f", &input);
      result = (*conversionFunction)(input);
      printf("%f gallon = %f liters \n", input, result);
      break;
    case 2:
      printf("Enter Fluid Ounce: ");
      scanf("%f", &input);
      result = (*conversionFunction)(input);
      printf("%f Fluid Ounce(fl oz) = %f milliliter(ml) \n", input, result);
      break;
    default:
      printf("Invalid conversion type! \n");
      break;
    }

    if (input == 0) {
      break;
    }
  }
}

void temperatureCalculator(int case_select,
                           float (*conversionFunction)(float)) {
  float input;
  printf("To exit enter \"01\" \n");
  while (1) {
    float result;
    switch (case_select) {
    case 1:
      printf("Enter Fahrenheit: ");
      scanf("%f", &input);
      result = (*conversionFunction)(input);
      printf("%f F = %f C \n", input, result);
      break;
    case 2:
      printf("Enter Celsius: ");
      scanf("%f", &input);
      result = (*conversionFunction)(input);
      printf("%f C = %f F \n", input, result);
      break;
    default:
      printf("Invalid conversion type! \n");
      break;
    }

    if (input == 01) {
      break;
    }
  }
}

void areaCalculator(int case_select, float (*conversionFunction)(float)) {
  float input;
  printf("To exit enter \"0\" \n");
  while (1) {
    float result;
    switch (case_select) {
    case 1:
      printf("Enter Square Feet: ");
      scanf("%f", &input);
      result = (*conversionFunction)(input);
      printf("%f sq ft = %f sq m \n", input, result);
      break;
    case 2:
      printf("Enter Square Meter: ");
      scanf("%f", &input);
      result = (*conversionFunction)(input);
      printf("%f sq m = %f sq ft \n", input, result);
      break;
    default:
      printf("Invalid conversion type! \n");
      break;
    }

    if (input == 0) {
      break;
    }
  }
}

int main() {
  int choice;

  while (1) {
    printf("______________Units and Conversions calculator______________\n");
    printf("1(Length) | 2(Weight) | 3(Volume) | 4(Temperature) | 5(Area)\n");
    printf("____________________________________________________________\n");
    printf("Select: ");
    scanf("%d", &choice);

    if (choice == 1 || choice == 2 || choice == 3 || choice == 4 ||
        choice == 5) {

      // length calculator
      if (choice == 1) {
        int select;
        while (1) {
          printf("*-----------------*\n");
          printf(" LENGTH CALCULATOR\n");
          printf("*-----------------*\n");
          printf("To exit enter \"0\" \n");
          printf("1(Inch to Feet) | 2(Inch to Meter) | 3(Centimeter to Inch) | "
                 "4(Kilometer to Miles)\n");
          printf("Select: ");
          scanf("%d", &select);

          if (select == 0) {
            break;
          }

          switch (select) {
          case 1:
            printf("________________________________\n");
            printf("LENGTH CALCULATOR > Inch to Feet \n");
            printf("________________________________\n");
            lengthCalculator(1, inchToFeet);
            break;
          case 2:
            printf("_________________________________\n");
            printf("LENGTH CALCULATOR > Inch to Meter \n");
            printf("_________________________________\n");
            lengthCalculator(2, inchToMeter);
            break;
          case 3:
            printf("______________________________________\n");
            printf("LENGTH CALCULATOR > Centimeter to Inch \n");
            printf("______________________________________\n");
            lengthCalculator(3, centimeterToInch);
            break;
          case 4:
            printf("______________________________________\n");
            printf("LENGTH CALCULATOR > Kilometer to Miles \n");
            printf("______________________________________\n");
            lengthCalculator(4, kiloToMiles);
            break;
          default:
            printf("Invalid choice! \n");
            break;
          }
        }
      }

      // Weight calculator
      if (choice == 2) {
        int select;

        while (1) {
          printf("*-----------------*\n");
          printf(" WEIGHT CALCULATOR\n");
          printf("*-----------------*\n");
          printf("To exit enter \"0\" \n");
          printf("1(Pound to Kilogram) | 2(Ounce to Gram)\n");
          printf("Select: ");
          scanf("%d", &select);

          if (select == 0) {
            break;
          }

          switch (select) {
          case 1:
            printf("_____________________________________\n");
            printf("WEIGHT CALCULATOR > Pound to Kilogram\n");
            printf("_____________________________________\n");
            weightCalculator(1, poundToKg);
            break;
          case 2:
            printf("_________________________________\n");
            printf("WEIGHT CALCULATOR > Ounce to Gram\n");
            printf("_________________________________\n");
            weightCalculator(2, ounceToGram);
            break;
          default:
            printf("Invalid choice!\n");
            break;
          }
        }
      }

      // Volume calculator
      if (choice == 3) {
        int select;

        while (1) {
          printf("*-----------------*\n");
          printf(" VOLUME CALCULATOR\n");
          printf("*-----------------*\n");
          printf("To exit enter \"0\" \n");
          printf("1(Gallon to Liter) | 2(Fluid Ounce to Milliliter)\n");
          printf("Select: ");
          scanf("%d", &select);

          if (select == 0) {
            break;
          }

          switch (select) {
          case 1:
            printf("___________________________________\n");
            printf("VOLUME CALCULATOR > Gallon to Liter\n");
            printf("___________________________________\n");
            volumeCalculator(1, gallonToLiter);
            break;
          case 2:
            printf("_____________________________________________\n");
            printf("VOLUME CALCULATOR > Fluid Ounce to Milliliter\n");
            printf("_____________________________________________\n");
            volumeCalculator(2, fluidOunceToMilliliter);
            break;
          default:
            printf("Invalid choice!\n");
            break;
          }
        }
      }

      // Temperature calculator
      if (choice == 4) {
        int select;

        while (1) {
          printf("*----------------------*\n");
          printf(" TEMPERATURE CALCULATOR\n");
          printf("*----------------------*\n");
          printf("To exit enter \"0\" \n");
          printf("1(Fahrenheit to Celsius) | 2(Celsius to Fahrenheit)\n");
          printf("Select: ");
          scanf("%d", &select);

          if (select == 0) {
            break;
          }

          switch (select) {
          case 1:
            printf("___________________________________\n");
            printf("VOLUME CALCULATOR > Fahrenheit to Celsius\n");
            printf("___________________________________\n");
            temperatureCalculator(1, fahrenheitToCelsius);
            break;
          case 2:
            printf("_____________________________________________\n");
            printf("VOLUME CALCULATOR > Celsius to Fahrenheit\n");
            printf("_____________________________________________\n");
            temperatureCalculator(2, celsiusToFahrenheit);
            break;
          default:
            printf("Invalid choice!\n");
            break;
          }
        }
      }

      // Area calculator
      if (choice == 5) {
        int select;

        while (1) {
          printf("*---------------*\n");
          printf(" AREA CALCULATOR\n");
          printf("*---------------*\n");
          printf("To exit enter \"0\" \n");
          printf("1(Square Feet to Square Meters) | 2(Square Meter to Square "
                 "Feet)\n");
          printf("Select: ");
          scanf("%d", &select);

          if (select == 0) {
            break;
          }

          switch (select) {
          case 1:
            printf("______________________________________________\n");
            printf("AREA CALCULATOR > Square Feet to Square Meters\n");
            printf("______________________________________________\n");
            areaCalculator(1, sqFtToSqM);
            break;
          case 2:
            printf("_____________________________________________\n");
            printf("AREA CALCULATOR > Square Meter to Square Feet\n");
            printf("_____________________________________________\n");
            areaCalculator(2, sqMToSqFt);
            break;
          default:
            printf("Invalid choice!\n");
            break;
          }
        }
      }
    } else {
      printf("Invalid choice! \n");
    }
  }

  return 0;
}