變量或字段宣告無效」和其他錯誤

Question

我創建一個工資計算程序，這裏是我的代碼

#include <stdio.h> 
    #include <stdlib.h> 
    #include <string.h> 

    #define REPORTHEADING1 "  Employee    Pay  Hours  Gross  Tax   Net\n" 
    #define REPORTHEADING2 "  Name     Rate  Worked Pay  Due  Pay\n" 
    #define REPORTHEADING3 "  ===============  ====  ====== =====  ====  ====\n" 
    #define REPORTHEADING4 "       ====  ====== =====  ====  ====\n" 
    #define REPORTLINEFORMAT1 "  %-20s%6.2f%11.2f%9.2f%9.2f%10.2f\n" 
    #define REPORTLINEFORMAT2 "  Totals    %6.2f%11.2f%9.2f%9.2f%10.2f\n" 
    #define REPORTLINEFORMAT3 "  Averages   %6.2f%11.2f%9.2f%9.2f%10.2f\n" 

    #define COUNTLINEFORMAT "  Number of employees: %-10i\n\n" 

    #define MAXREGHOURS 40 
    #define OVERTIMERATE 1.5 


    enter code here 
    void PrintReportHeadings(FILE *reportFile); //printReportHeadings prototype 

    void InitializeAccumulators(float *totRegHour,float *totOvtHours,float *totPayrate, 
     float *totGross,float *totdeferred,float *totFedtax, 
     float *totStatetax,float *totSSItax,float *totNet,int *empCount);  //InitializeAccumulators prototype 

    void InputEmployeeData(char *firstName,char *lastName, 
      float *hours,float *payrate,float *deferred); //InputEmployeeData prototype 

    void CalculateGross(float hours,float payrate,float *regHours,float *ovtHours, 
      float *gross); //CalculateGross prototype 

    extern void CalculateTaxes(float gross,float deferred,float * fedtax, 
       float * statetax,float * ssitax); //CalculateTaxes prototype (external) 

    float CalculateNetPay(float gross,float fedtax,float statetax,float ssitax, 
       float deferred); 

    void AddDetailToAccumulators(float regHours,float ovtHours,float payrate, 
     float gross,float deferred,float fedtax,float statetax, 
     float ssitax,float net,float *totRegHours,float *totOvtHours, 
     float *totPayrate,float *totGross,float *totdeferred, 
     float *totFedtax,float *totStatetax,float *totSSItax, 
     float *totNet); 

    void PrintSummaryReport(FILE *reportFile,char fullName,float regHours,float ovtHours, 
      float payrate,float gross,float deferred,float fedtax, 
      float statetax,float ssitax,float net); 

    int main(void) 
    { 
    float ft,st,ssit; 
    char firstName[10+1]; 
    char lastName[15+1]; 
    char fullName[25+1]; 
    float regHours, ovtHours, hours, payrate, deferred, gross, netpay; 
    float totRegHours, totOvtHours, totPayrate, totGross,totdeferred, 
     totFedtax, totStatetax, totSSItax, totNet; 
    int empcount; 
    char answer; 
    FILE * reportFile; 

    reportFile = fopen("./report.txt","wt"); 
    if(reportFile = NULL) 
    { 
     printf(" Report open request failed...\n"); 
     while(getchar() != '\n'); 
     exit(-90);// reqs <stdlib.h> 
    } 

    PrintReportHeadings(reportFile); 

    InitializeAccumulators(&totRegHours,&totOvtHours,&totPayrate,&totGross, 
     &totdeferred,&totFedtax,&totStatetax,&totSSItax,&totNet, 
     &empcount);//set all accumulators to 0 

    do 
    { 
    InputEmployeeData(firstName,lastName,&hours,&payrate,&deferred); 
    CalculateGross(hours, payrate, &regHours, &ovtHours, &gross); 
    CalculateTaxes(gross,deferred,&ft,&st,&ssit); 
    netpay = CalculateNetPay(gross,ft,st,ssit,deferred); 
    strcpy(fullName,lastName); 
    strcat(fullName,", "); 
    strcat(fullName,firstName); 

    AddDetailToAccumulators(regHours,ovtHours,payrate,gross,deferred,ft,st, 
     ssit,netpay,&totRegHours,&totOvtHours,&totPayrate,&totGross, 
     &totdeferred,&totFedtax,&totStatetax,&totSSItax,&totNet); 

    void PrintSummaryReport(reportFile,fullName,regHours,ovtHours,payrate,gross,deferred, 
      ft,st,ssit,netpay) 

    empcount++; 
    printf(COUNTLINEFORMAT,empcount); 

    printf(" do you have anymore? (Y/N): "); 
    while(getchar() != '\n'); 
    answer = getchar(); 
    printf("\n"); 

    } 
    while(answer != 'N' && answer != 'n'); 

    while (getchar()!= '\n'); 
    getchar(); 
    return 0; 
} 

void PrintReportHeadings(FILE *reportFile) 
{ 
     reportFile = fopen("./report.txt","wt"); 
     fprintf(reportFile,REPORTHEADING1); 
     fprintf(reportFile,REPORTHEADING2); 
     fprintf(reportFile,REPORTHEADING3); 
} 


void InitializeAccumulators(float *totRegHour,float *totOvtHours,float *totPayrate, 
       float *totGross,float *totdeferred,float *totFedtax, 
       float *totStatetax,float *totSSItax,float *totNet,int *empCount) 
{ 
     totRegHour, totOvtHours, totPayrate, totGross,totdeferred, 
       totFedtax, totStatetax, totSSItax, totNet, empCount = 0; 
} 

void InputEmployeeData(char *firstName,char *lastName,float *hours, 
      float *payrate,float *deferred) 
{ 
    printf(" Enter employee first name : "); 
    scanf("%s",firstName); 
    printf(" Enter employee last name : "); 
    scanf("%s",lastName); 
    printf(" Enter %s's hours worked : ",firstName); 
    scanf("%f",hours); 
    printf(" Enter %s's pay rate : ",firstName); 
    scanf("%f",payrate); 
    printf(" Enter %s's amount deferred : ",firstName); 
    scanf("%f",deferred); 
} 

void CalculateGross(float hours,float payrate,float *regHours,float *ovtHours,float *gross) 
{ 
float overtimeHours(float hours); 

    if(hours <= MAXREGHOURS) 
    { 
     *regHours = hours; 
     *gross = hours * payrate; 
    } 
    else 
    { 
     *regHours = MAXREGHOURS; 
     *ovtHours = overtimeHours(hours); 
     *gross = payrate * MAXREGHOURS + OVERTIMERATE * payrate * (hours - MAXREGHOURS); 
    } 
} 

float overtimeHours(float hours) 
{ 
    return hours - MAXREGHOURS; 
} 
float CalculateNetPay(float gross,float fedtax,float statetax,float ssitax, 
     float deferred) 
{ 
    return gross - (fedtax + statetax + ssitax + deferred); 
} 
void AddDetailtoAccumulators(float regHours,float ovtHours,float payrate, 
       float gross,float deferred,float fedtax,float statetax, 
       float ssitax,float netpay,float *totRegHours,float *totOvtHours, 
       float *totPayrate,float *totGross,float *totDeferred, 
       float *totFedtax,float *totStatetax,float *totSSItax, 
       float *totNet) 
{ 
    *totRegHours =+ regHours; 
    *totOvtHours =+ ovtHours; 
    *totPayrate =+ payrate; 
    *totGross =+ gross; 
    *totDeferred =+ deferred; 
    *totFedtax =+ fedtax; 
    *totStatetax =+ statetax; 
    *totSSItax =+ ssitax; 
    *totNet =+ netpay; 
} 

void PrintSummaryReport(FILE *reportFile,char fullName,float regHours,float ovtHours, 
         float payrate,float gross,float deferred,float fedtax, 
         float statetax,float ssitax,float netpay) 
{ 
    reportFile = fopen("./report.txt","wt"); 

    fprintf(reportFile,REPORTLINEFORMAT1,fullName,payrate,regHours,gross,fedtax, 
     ssitax,netpay); 
    fprintf(reportFile,REPORTLINEFORMAT2,ovtHours,statetax,deferred); 

    printf(reportFile,REPORTLINEFORMAT1,fullName,payrate,regHours,gross,fedtax, 
     ssitax,netpay); 
    printf(reportFile,REPORTLINEFORMAT2,ovtHours,statetax,deferred); 
} 

我得到的錯誤是： 變量或字段PrintSummaryReport宣佈無效

然後我也得到： 在功能voidPrintSummaryReport ...... 不能將文件轉換爲const車參數爲int的printf（爲const char * ...） 是以下行

printf(reportFile,REPORTLINEFORMAT1,fullName,payrate,regHours,gross,fedtax, 
     ssitax,netpay); 
    printf(reportFile,REPORTLINEFORMAT2,ovtHours,statetax,deferred); 

Answer 1

在do塊，你有這樣的語句：

void PrintSummaryReport(reportFile,fullName,regHours,ovtHours,payrate,gross,deferred, 
     ft,st,ssit,netpay) 

取出void關鍵字，因爲你在那裏調用該函數。因爲錯誤說，我認爲你不能使用printf和FILE*。 fprintf應該沒問題。您可以查看printf等的詳細信息。here。請注意，這是針對Linux的，但它也適用於在Windows上使用C。

Answer 2

錯誤：無關的「void」;失蹤 「;」：

void PrintSummaryReport(reportFile,fullName,regHours,ovtHours,payrate,gross,deferred, 
      ft,st,ssit,netpay) 

正確：

PrintSummaryReport(reportFile,fullName,regHours,ovtHours,payrate,gross,deferred, 
      ft,st,ssit,netpay); 

問：你爲什麼要在main（）打開 「reportFile」 ......然後 「PrintReportHeading（）」 內再次打開它？又在「PrintSummaryReport（）」中？只需打開一次，然後在需要的地方使用它。

最後：

錯： 「printf（）的」 不採取FILE *參數; 「fprintf中（）」 的作用：

printf(reportFile,REPORTLINEFORMAT1,fullName,payrate,regHours,gross,fedtax, 
    ssitax,netpay); 
printf(reportFile,REPORTLINEFORMAT2,ovtHours,statetax,deferred); 

正確：

fprintf(reportFile,REPORTLINEFORMAT1,fullName,payrate,regHours,gross,fedtax, 
    ssitax,netpay); 
fprintf(reportFile,REPORTLINEFORMAT2,ovtHours,statetax,deferred);