net salary calc

[mulugeta01]

guys I have just started to learn c programing and i have some small assign ment to do . i cant go through , Please help, That is to calulate net salary after
tax.1.gross salay = 78000
2.social security 7.5% for the first 58000
3.fderal tax 3000 and 28% above 3000
4 state tax is 10 %
thank you

#include <stdio.h>
#include <stdlib.h>
 
#define GROSS_SALARY    78000
#define FEDERAL_TAX_BP  30000
#define FEDERAL_TAX_RATE        .28
#define FEDERAL_TAX_FR          3000
#define SOCIAL_SECURITY_BP      58000
#define SOCIAL_SECURITY_RATE    .075
#define STATE_TAX_RATE          .10
 
 double FEDERAL_TAX;
 double SOCIAL_SECURITY;
 double STATE_TAX;
 double TOTAL_TAX;
 double NET_SALARY;
 double FEDERAL_TAX_TAXABLE;
 double FEDERL_TAX_FR;
 double FEDERAL_TAX_BP;
 double FEDERAL_TAX_RATE;
 
int main()
{
 
 
    FEDERAL_TAX_TAXABLE = GROSS_SALARY - FEDERAL_TAX_ BP;
    FEDERAL_TAX = FEDERL_TAX_FR + FEDERAL_TAX_TAXABLE * FEDERAL_TAX_RATE;
    SOCIAL_SECURITY = SOCIAL_SECURITY_BP * SOCIAL_SECURITY_RATE;
    STATE_TAX = GROSS_SALARY * STATE_TAX_RATE;
    TOTAL_TAX = FEDERAL_TAX + SOCIAL_SECURITY + STATE_TAX;
    NET_SALARY = GROSS_SALARY - TOTAL_TAX;
 
    printf("Gross Salary: t\t\%7.2f\n",GROSS_SALARY);
    printf("Federal Tax Break Point: %7.2f\n",FEDERAL_TAX_BP);
    printf("Federal Tax Flat Rate: %7.2f\n",FEDERAL_TAX_FR);
    printf("Ferderal Tax at rate of 7.5: %7.2\n",FEDRAL_TAX);
    printf("Social security Break Point: %7.2\n", SOCIAL_SECURITY_BP);
    printf("Social Security at rate of : %7.2f\n",SOCIAL_SECURITY);
    printf("State Tax at 10% rate: %7.2\n",STATE_TAX);
    printf("Total Tax :\t\t\t\t %7.2\n",TOTAL_TAX);
    printf("Net Salary:   \t\t\t %7.2\n",NET_SALARY);
    printf(" Please Touch Any Key When Done \n");
    getchar();
    return EXIT_SUCCESS;
}

[donbock]

So what happens when you run your program; and how does that differ from your expectations?
Cheers,
donbock

[Parul Bagadia]

In the first line of your main function; you have used space in between _ and BP. So it must be giving u an error named; undeclared variable. Because when you have defined it you have not used any space in between.
And when you use getchar(); it inputs any key u press and echos it ; where as it is not the case with getch(); So if u dont want that charachter and want user only top enter a key; you should use getch(); and not getchar();
What purpose does 7.2f serves?

[Laharl]

Also, please use CODE /CODE tags when posting code to make it easier to read.

[sicarie]

And when you use getchar(); it inputs any key u press and echos it ; where as it is not the case with getch(); So if u dont want that charachter and want user only top enter a key; you should use getch(); and not getchar();

I'd strongly recommend against using getch() ever. It requires a non-standard library to implement, which can affect portability and versioning of your program.

If you can duplicate the functionality without using getch(), it is a good idea to do so.

[Parul Bagadia]

I'd strongly recommend against using getch() ever. It requires a non-standard library to implement, which can affect portability and versioning of your program.

If you can duplicate the functionality without using getch(), it is a good idea to do so.

I didnt know this.
Can you explain a bit more about how it affects the portability and versioning of our program; because i use it many times; without knowing the actual scenario.

[sicarie]

I didnt know this.
Can you explain a bit more about how it affects the portability and versioning of our program; because i use it many times; without knowing the actual scenario.

Sure. Getch() is a member of conio.h (Wikipedia link) - which is a library whose implementation varies by version and compiler. Because of a lack of standardization, functions are not guaranteed to behave the same way, and

functions declared by conio.h vary significantly from compiler to compiler

It is because of that variance that executables will behave radically different, and sometimes not at all, depending on the version of conio.h that is installed.

::edit:: Versioning shouldn't be too much of an issue as I don't believe conio.h is being supported any more, so you won't need to alter functionality to support new versions, however use of conio.h will require a published set of 'Requirements' so that anyone running your program has a compatible version of that library.

[mulugeta01]

Itstops With A Error ,not Executed,pls Can Some Have Time To Modify Mine
Thankyou

[sicarie]

Itstops With A Error ,not Executed,pls Can Some Have Time To Modify Mine
Thankyou

Did you read Parul's post? Did you read the error message and check the line that it came from?

What have you tried to fix this error? per our Posting Guidelines we cannot just do your work for you.