Question

i keep getting return value ignored and and conversion from double to float , possible data loss dont know how to fix the mistakes. if you could please fix it.

#define _CRT_SECURE_NO_WARNINGS
#define _CRT_SECURE_NO_DEPRECATE
#define _CRT_NONSTDC_NO_DEPRECATE
#include
#include

void O_Read_age_1()
{
   int sum = 0;
   int i;
   for (i = 1; i <= 2; i++)
   {

       int temp;
       printf("please enter the age of employee %d:", i);
       scanf("%d", &temp);
       sum += temp;
   }

   printf("\n");
   printf("The total age of all employees is%d\n", sum);
   return;
}
float O_Read_Salary_1()
{

   float sum = 0;
   int i;
   for (i = 1; i <= 2; i++)
   {
       printf("PLease enter the salary of the employee %d:", i);
       float temp;
       scanf("%f", &temp);
       for (; ((temp < 1000)) || ((temp > 6000));)
       {
           printf("Salary should be from 1000 to 6000:");
           scanf("%f", &temp);
       }
       if (temp <= 2150)
       {
           float inc = temp * 0.2;
           sum += temp;
           sum += inc;
       }
       else if ((temp > 2150) && (temp <= 4150))
       {

           float inc = temp * 0.15;
           sum += temp;
           sum += inc;
       }
       else if ((temp > 4150) && (temp <= 5150))
       {
           float inc = temp * 0.1;
           sum += temp;
           sum += inc;
       }
   }
   return sum;
}
void O_Read_Gender_1()
{
   int males = 0;
   int females = 0;
   int j = 0;
   char ch;
   for (j = 0; j < 2; j++)
   {
       printf("Enter the gender of employee %d (F or M):", j + 1);
       ch = getchar();
       scanf("%s",&ch);
       printf("\n");
       if (ch == 'F')
       {
           females++;
       }
       else if (ch == 'M')
       {
           males++;
       }
   }
   printf("The number of female employees is %d \n", females);
   printf("The number of male employees is %d \n", males);
  
   return;
}
void O_Calculate_Bonus_1()
{
   int bonus = 0;
   printf("Enter the rank of the company: %d");
   printf("\n");
   int Rank;
   scanf("%d", &Rank);
   printf("Enterr the ID of the company: ");
   int id;
   scanf("%d", &id);
   printf("\n");
   if (Rank == 1)
   {
       bonus = 15;
   }
   if (Rank == 2)
   {
       bonus = 10;
   }
   else
   {
       bonus = 5;
   }
   printf("Company ID = %d\n", id);
   printf("Rank= %d\n", Rank);
   printf("Bonus = %d", bonus);
   printf("Student: Bader Alostad Section:O1 ID:45191 - Semester Spring 2 online Press any button to continue...\n");
   return;
}

int main()
{
   float ans = O_Read_Salary_1();
   printf("\n");
   printf("The Function Read_Salary return the value %f \n", ans);
   O_Read_age_1();
   O_Read_Gender_1();
   O_Calculate_Bonus_1();
   return 0;

}

Answer 1

float inc = temp * 0.2;

float inc = temp * 0.15;

float inc = temp * 0.1;

inc is float

0.2 , 0.15 and 0.1 are double So changed to

float inc = temp * 0.2f;

float inc = temp * 0.15f;  

float inc = temp * 0.1f;

to tell the compiler that it's a float, not a double.

==========================================

After fix the program :

#define _CRT_SECURE_NO_WARNINGS
#define _CRT_SECURE_NO_DEPRECATE
#define _CRT_NONSTDC_NO_DEPRECATE
#include<stdio.h>
#include<stdlib.h>

void O_Read_age_1()
{
   int sum = 0;
   int i;
   for (i = 1; i <= 2; i++)
   {

       int temp;
       printf("please enter the age of employee %d:", i);
       scanf("%d", &temp);
       sum += temp;
   }

   printf("\n");
   printf("The total age of all employees is%d\n", sum);
   return;
}
float O_Read_Salary_1()
{

   float sum = 0;
   int i;
   for (i = 1; i <= 2; i++)
   {
       printf("PLease enter the salary of the employee %d:", i);
       float temp;
       scanf("%f", &temp);
       for (; ((temp < 1000)) || ((temp > 6000));)
       {
           printf("Salary should be from 1000 to 6000:");
           scanf("%f", &temp);
       }
       if (temp <= 2150)
       {
           float inc = temp * 0.2f;
           sum += temp;
           sum += inc;
       }
       else if ((temp > 2150) && (temp <= 4150))
       {

           float inc = temp * 0.15f;
           sum += temp;
           sum += inc;
       }
       else if ((temp > 4150) && (temp <= 5150))
       {
           float inc = temp * 0.1f;
           sum += temp;
           sum += inc;
       }
   }
   return sum;
}
void O_Read_Gender_1()
{
   int males = 0;
   int females = 0;
   int j = 0;
   char ch;
   for (j = 0; j < 2; j++)
   {
       printf("Enter the gender of employee %d (F or M):", j + 1);
       ch = getchar();
       scanf("%s",&ch);
       printf("\n");
       if (ch == 'F')
       {
           females++;
       }
       else if (ch == 'M')
       {
           males++;
       }
   }
   printf("The number of female employees is %d \n", females);
   printf("The number of male employees is %d \n", males);

   return;
}
void O_Calculate_Bonus_1()
{
   int bonus = 0;
   printf("Enter the rank of the company: ");
   printf("\n");
   int Rank;
   scanf("%d", &Rank);
   printf("Enterr the ID of the company: ");
   int id;
   scanf("%d", &id);
   printf("\n");
   if (Rank == 1)
   {
       bonus = 15;
   }
   if (Rank == 2)
   {
       bonus = 10;
   }
   else
   {
       bonus = 5;
   }
   printf("Company ID = %d\n", id);
   printf("Rank= %d\n", Rank);
   printf("Bonus = %d", bonus);
   printf("Student: Bader Alostad Section:O1 ID:45191 - Semester Spring 2 online Press any button to continue...\n");
   return;
}

int main()
{
   float ans = O_Read_Salary_1();
   printf("\n");
   printf("The Function Read_Salary return the value %f \n", ans);
   O_Read_age_1();
   O_Read_Gender_1();
   O_Calculate_Bonus_1();
   return 0;

}

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