/******  Programm bmifunktion.c  *******
*                                      *
*  Funktionsberechnung Body-Mass-Index *
*                                      *
***************************************/

#include <stdio.h>

   float BMI(float kg, float Meter);


   int main()
   {
      char Name[41], F1[] = "%8s%10s";
      float BMI_Wert, Groesse, Gewicht;
   
      printf("\nBody-Mass-Index (BMI)\n\n");
   
      printf("Ihr Name: ");
      scanf("%40[^\n]", &Name);
      while (getc(stdin) != '\n')
         ;
   
      printf("Ihre Groesse [m]: ");
      scanf("%f", &Groesse);
      while (getc(stdin) != '\n')
         ;
   
      printf("Ihr Gewicht [kg]: ");
      scanf("%f", &Gewicht);
      while (getc(stdin) != '\n')
         ;
   
      BMI_Wert = BMI(Gewicht, Groesse);
      printf("\n%s, Ihr Body-Mass-Index (BMI) betraegt: %.1f\n\n",
            Name, BMI_Wert);
   
      printf("%7s%9s", "Alter",  "BMI\n");
      printf(F1, "19 - 24", "19 - 24\n");
      printf(F1, "25 - 34", "20 - 24\n");
      printf(F1, "35 - 44", "21 - 26\n");
      printf(F1, "45 - 54", "22 - 27\n");
      printf(F1, "55 - 64", "23 - 28\n");
      printf(F1, "65 - ..", "24 - 29\n");
      printf("Quelle: National Research Council - Diet and Health.\n");
   
      return 0;
   }


   float BMI(float kg, float Meter)   
   {
      float Index;
      Index = kg / (Meter * Meter);
      return Index;
      /* oder noch kuerzer (keine Variable Index noetig): */
      /* return kg / (Meter * Meter); */
   }