Code: /* Calculate the tax due or the refund for family based on the following imaginary formula 1. For each dependent deduct $1,000 from income, 2.Determine tax rte from the following brackets; bracket taxable income tax rate 1 <=10000 2% 2 10001 - 20000 5% 3 30001 - 40000 7% 4 40001 - 50000 10% 2 50001 and up 15% then print the amount of tax or the refund @author:Sudhir @Date and Time: 1/9/2011 2:16:25 PM */ #include<stdio.h> #define LOWEST 0000000.00 #define HIGHEST 1000000.00 #define LIMIT1 10000.00 #define LIMIT2 20000.00 #define LIMIT3 30000.00 #define LIMIT4 40000.00 #define LIMIT5 50000.00 #define RATE1 02 #define RATE2 05 #define RATE3 07 #define RATE4 10 #define RATE5 15 #define DEDN_PER_DPNDNT 1000 //Function Declarations void getData(double* totalIncome, double* taxPaid, int* numOfDpndnts); void calcTaxes(double totalIncome, double taxPaid, int numOfDpndnts, double* taxableIncome, double* totalTax, double* taxDue); void printInformation(double totalIncome, double taxPaid, int numOfDpndnts, double totalTax, double paidTax,double taxDue); double bracketTax(double income, double startLimit, double stopLimit, int rate); int main(int argc,char *argv[]) { //Local Declarations int numOfDpndnts; double taxDue; double taxPaid; double totalIncome; double taxableIncome; double totalTax; //Statements getData(&totalIncome, &taxPaid, &numOfDpndnts); calcTaxes(totalIncome, taxPaid, numOfDpndnts, &taxableIncome, &totalTax, &taxDue); printInformation(totalIncome, taxableIncome, numOfDpndnts, totalTax, taxPaid, taxDue); return 0; }//main /* ==============================getData()=============================== This function reads tax data from the keyboard. pre: nothing post: Reads totalIncome, taxPaid, &numOfDpndnts */ void getData(double* totalIncome, double* taxPaid, int* numOfDpndnts) { //Statements printf("Enter your total income for the year: \n"); scanf("%lf", totalIncome); printf("Enter total of payroll deductions: \n"); scanf("%lf", taxPaid); printf("Enter the number of dependents: \n"); scanf("%lf", numOfDpndnts); return; }//getData /* ==============================calcTaxes()=============================== This function calculates the tax due. pre: Given-Income, numOfDpndnts post: Tax Income, total Tax, and tax Due calculated */ void calcTaxes(double totalIncome, double taxPaid, int numOfDpndnts, double* taxableIncome, double* totalTax, double* taxDue) { //Statements [COLOR=Red] taxableIncome = totalIncome - (numOfDpndnts * DEDN_PER_DPNDNT);[/COLOR] *totalTax = bracketTax(*taxableIncome, LOWEST, LIMIT1, RATE1) + bracketTax(*taxableIncome, LIMIT1, LIMIT2, RATE2) + bracketTax(*taxableIncome, LIMIT2, LIMIT3, RATE3) + bracketTax(*taxableIncome, LIMIT3, LIMIT4, RATE4) + bracketTax(*taxableIncome, LIMIT4, LIMIT5, RATE5) ; *taxDue = *totalTax - taxPaid; return; }//calcTaxes /* ==============================printInformation()=============================== This function prints a table showing all information pre: The parameter list post: Prints the table */ void printInformation(double totalIncome, double taxPaid, int numOfDpndnts, double totalTax, double paidTax,double taxDue) { //Statements printf("\n Total Income: %10.2f\n", totalIncome); printf("\n Number of dependents: %7d\n", numOfDpndnts); printf("\n Taxable Income: %10.2f\n", taxPaid); printf("\n Total Tax %10.2f\n", totalTax); printf("\n Tax Already Paid: %10.2f\n", paidTax); if(taxDue >= 0.0) printf("Tax due: %10.2f\n", taxDue); else printf("refund: %10.2f\n", -taxDue); return; }//printInformation /* ==============================bracketTax()=============================== This function calculates the tax for particular bracket pre: The taxable income post: Return the tax for particular bracket */ double bracketTax(double income, double startLimit, double stopLimit, int rate) { //Local Declarations double tax; //Statements if(income <= startLimit) tax = 0.0; else if( income > startLimit && income <= stopLimit) tax = (income > stopLimit) * rate /100.00; else tax = (stopLimit - startLimit) * rate / 100.00; return tax; }// bracketTax error in visual c++ compiler is Code: Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 14.00.50727.42 for 80x86 Copyright (C) Microsoft Corporation. All rights reserved. Tax.c Tax.c(69) : warning C4996: 'scanf' was declared deprecated C:\Program Files\Microsoft Visual Studio 8\VC\INCLUDE\stdio.h(295) : see declaration of 'scanf' Message: 'This function or variable may be unsafe. Consider using scanf_ s instead. To disable deprecation, use _CRT_SECURE_NO_DEPRECATE. See online help for details.' Tax.c(72) : warning C4996: 'scanf' was declared deprecated C:\Program Files\Microsoft Visual Studio 8\VC\INCLUDE\stdio.h(295) : see declaration of 'scanf' Message: 'This function or variable may be unsafe. Consider using scanf_ s instead. To disable deprecation, use _CRT_SECURE_NO_DEPRECATE. See online help for details.' Tax.c(75) : warning C4996: 'scanf' was declared deprecated C:\Program Files\Microsoft Visual Studio 8\VC\INCLUDE\stdio.h(295) : see declaration of 'scanf' Message: 'This function or variable may be unsafe. Consider using scanf_ s instead. To disable deprecation, use _CRT_SECURE_NO_DEPRECATE. See online help for details.' Tax.c(89) : error C2440: '=' : cannot convert from 'double' to 'double *'
For the warning messages you can either use the non-standard function Microsoft recommends scanf_ s in this case or #define _CRT_SECURE_NO_DEPRECATE . Please see this link Security enhancements. For the error: Code: void calcTaxes(double totalIncome, double taxPaid, int numOfDpndnts, double* taxableIncome, double* totalTax, double* taxDue) { //Statements taxableIncome = totalIncome - (numOfDpndnts * DEDN_PER_DPNDNT); // Line 89 Your variable taxableIncome is a pointer to a double and you are trying to assign a double to it. You must add the * in front of taxableIncome. Also I get a warning on line 75. And line 75 is: Code: scanf("%lf", numOfDpndnts); And numOfDpndnts is an int* not a floating point number. So the format specifier should be "%d". This warning should also be found by your compiler, but I guess Microsoft is more concerned about "Significant enhancements" that they forget about the real problems. Jim
Code: #include<stdio.h> #define LOWEST 0000000.00 #define HIGHEST 1000000.00 #define LIMIT1 10000.00 #define LIMIT2 20000.00 #define LIMIT3 30000.00 #define LIMIT4 40000.00 #define LIMIT5 50000.00 #define RATE1 02 #define RATE2 05 #define RATE3 07 #define RATE4 10 #define RATE5 15 #define DEDN_PER_DPNDNT 1000 //Function Declarations void getData(double totalIncome, double taxPaid, int numOfDpndnts); void calcTaxes(double totalIncome, double taxPaid, int numOfDpndnts, double taxableIncome, double totalTax, double taxDue); void printInformation(double totalIncome, double taxPaid, int numOfDpndnts, double totalTax, double paidTax,double taxDue); double bracketTax(double income, double startLimit, double stopLimit, int rate); void main(int argc,char argv[]) { //Local Declarations int numOfDpndnts; double taxDue; double taxPaid; double totalIncome; double taxableIncome; double totalTax; //Statements getData(&totalIncome, &taxPaid, &numOfDpndnts); calcTaxes(totalIncome, taxPaid, numOfDpndnts, &taxableIncome, &totalTax, &taxDue); printInformation(totalIncome, taxableIncome, numOfDpndnts, totalTax, taxPaid, taxDue); }//main /* ==============================getData()=============================== This function reads tax data from the keyboard. pre: nothing post: Reads totalIncome, taxPaid, &numOfDpndnts */ void getData(double totalIncome, double taxPaid, int numOfDpndnts) { //Statements printf("Enter your total income for the year: \n"); scanf("%lf", totalIncome); printf("Enter total of payroll deductions: \n"); scanf("%lf", taxPaid); printf("Enter the number of dependents: \n"); scanf("%lf", numOfDpndnts); return; } //getData /* ==============================calcTaxes()=============================== This function calculates the tax due. pre: Given-Income, numOfDpndnts post: Tax Income, total Tax, and tax Due calculated */ void calcTaxes(double totalIncome, double taxPaid, int numOfDpndnts, double taxableIncome, double totalTax, double taxDue) { //Statements taxableIncome = totalIncome - (numOfDpndnts * DEDN_PER_DPNDNT); totalTax = bracketTax(taxableIncome, LOWEST, LIMIT1, RATE1) + bracketTax(*taxableIncome, LIMIT1, LIMIT2, RATE2) + bracketTax(taxableIncome, LIMIT2, LIMIT3, RATE3) + bracketTax(taxableIncome, LIMIT3, LIMIT4, RATE4) + bracketTax(taxableIncome, LIMIT4, LIMIT5, RATE5) ; taxDue = totalTax - taxPaid; return; }//calcTaxes /* ==============================printInformation()=============================== This function prints a table showing all information pre: The parameter list post: Prints the table */ void printInformation(double totalIncome, double taxPaid, int numOfDpndnts, double totalTax, double paidTax,double taxDue) { //Statements printf("\n Total Income:%10.2f\n", totalIncome); printf("\n Number of dependents:%7d\n", numOfDpndnts); printf("\n Taxable Income:%10.2f\n", taxPaid); printf("\n Total Tax %10.2f\n", totalTax); printf("\n Tax Already Paid:%10.2f\n", paidTax); if(taxDue >= 0.0) printf("Tax due:%10.2f\n", taxDue); else printf("refund:%10.2f\n", -taxDue); return; }//printInformation /* ==============================bracketTax()=============================== This function calculates the tax for particular bracket pre: The taxable income post: Return the tax for particular bracket */ void double bracketTax(double income, double startLimit, double stopLimit, int rate) { //Local Declarations double tax; //Statements if(income <= startLimit) tax = 0.0; else if( income > startLimit && income <= stopLimit) tax = (income > stopLimit) * rate /100.00; else tax = (stopLimit - startLimit) * rate / 100.00; return (0); }// bracketTax not sure about program ,just try
