I am having trouble making a function that will open a file - c

Question

void writeResultsToFile(FILE *f, char arrTypeLabels[3][7], char sortNames[4][11], float times[4][3], int n);
void writeResultsToFile(FILE *f, char arrTypeLabels[3][7], char sortNames[4][11], float times[4][3], int n)
{
f= fopen( "TIMES.txt", "wb");
if((f=fopen("TIMES.txt", "wb"))==NULL) {
printf("Cannot open file.n");
}
if (f == NULL)
{
printf("Error! Could not open file\n");
exit(-1);
}
fprintf(f,"Array size: %d\n================\n ",n);
int i,j;
for(i=0;i<3;i++)
{
for(j=0;j<7;j++)
{
fwrite(arrTypeLabels[i] + j, sizeof (char), sizeof (char), f);
}
}
for(i=0;i<4;i++)
{
for(j=0;j<11;j++)
{
fwrite(sortNames[i] + j, sizeof (char), sizeof (char), f);
if (j==9 && i==0)
{
int df;
for(df=0;df<3;df++)
fprintf(f," %f",times[0][df]);
}
if (j==9 && i==1)
{
int df;
for(df=0;df<3;df++)
fprintf(f," %f",times[1][df]);
}
if (j==5 && i==2)
{
int df;
fprintf(f," ");
for(df=0;df<3;df++)
fprintf(f," %f",times[2][df]);
}
if (j==5 && i==3)
{
int df;
fprintf(f," ");
for(df=0;df<3;df++)
fprintf(f," %f",times[3][df]);
}
}
}
fclose(f);
}
//This is how i call it inside the main
writeResultsToFile(FILE *f,arrTypeLabels[3][7],sortNames[4][11],times[4][3],n);
the code inside it is right i tested it without the funtion, it works , i just dont know how to call it as a funtion if anybody can help.
Expected expression before FILE, and conflicted type errors..............................................

Answer 1

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
void writeResultsToFile(FILE *f, char arrTypeLabels[3][7], char
sortNames[4][11], float times[4][3], int n);
int main(int argc, char *argv[])
{
int n=10;
char arrTypeLabels[3][7]= {"Random", "ASC", "DESC"},sortNames[4]
[11]={"Selection", "Insertion", "Shell", "Quick"};
FILE *f;
float times[4][3];
writeResultsToFile(f, arrTypeLabels, sortNames, times, n);
return 0;
}
void writeResultsToFile(FILE *f, char arrTypeLabels[3][7], char
sortNames[4][11], float times[4][3], int n)
{
f= fopen( "TIMES.txt", "wb");
if((f=fopen("TIMES.txt", "wb"))==NULL) {
printf("Cannot open file.n");
}
if (f == NULL)
{
printf("Error! Could not open file\n");
exit(-1);
}
fprintf(f,"Array size: %d\n================\n ",n);
int i,j;
for(i=0;i<3;i++)
{
if(i==2){
fprintf(f," %s ",arrTypeLabels[i]);
}
else{
fprintf(f,"%s ",arrTypeLabels[i]);
}
}
for(i=0;i<4;i++)
{
fprintf(f,"\n");
for(j=0;j<11;j++)
{
fwrite(sortNames[i] + j, sizeof (char), sizeof (char), f);
if (j==9 && i==0)
{
int df;
for(df=0;df<3;df++)
fprintf(f," %f",times[0][df]);
}
if (j==9 && i==1)
{
int df;
for(df=0;df<3;df++)
fprintf(f," %f",times[1][df]);
}
if (j==5 && i==2)
{
int df;
fprintf(f," ");
for(df=0;df<3;df++)
fprintf(f," %f",times[2][df]);
}
if (j==5 && i==3)
{
int df;
fprintf(f," ");
for(df=0;df<3;df++)
fprintf(f," %f",times[3][df]);
}
}
}
fclose(f);
}

Answer 2

#include <stdlib.h>
#include <wchar.h>
#include <stdio.h>
int writeResultsToFile(FILE *f, char arrTypeLabels[3][7], char sortNames[4][11], float times[4][3], int n);
int writeResultsToFile(FILE *f, char arrTypeLabels[3][7], char sortNames[4][11], float times[4][3], int n)
{
f = fopen("TIMES.txt", "wb");
if ((f = fopen("TIMES.txt", "wb")) == NULL)
{
printf("Cannot open file.n");
}
if (f == NULL)
{
printf("Error! Could not open file\n");
exit(-1);
}
fprintf(f, "Array size: %d\n================\n ", n);
int i, j;
for (i = 0; i < 3; i++)
{
for (j = 0; j < 7; j++)
{
fwrite(arrTypeLabels[i] + j, sizeof (char), sizeof (char), f);
}
}
for (i = 0; i < 4; i++)
{
for (j = 0; j < 11; j++)
{
fwrite(sortNames[i] + j, sizeof (char), sizeof (char), f);
if (j == 9 && i == 0)
{
int df;
for (df = 0; df < 3; df++)
fprintf(f, " %f", times[0][df]);
}
if (j == 9 && i == 1)
{
int df;
for (df = 0; df < 3; df++)
fprintf(f, " %f", times[1][df]);
}
if (j == 5 && i == 2)
{
int df;
fprintf(f, " ");
for (df = 0; df < 3; df++)
fprintf(f, " %f", times[2][df]);
}
if (j == 5 && i == 3)
{
int df;
fprintf(f, " ");
for (df = 0; df < 3; df++)
fprintf(f, " %f", times[3][df]);
}
}
}
fclose(f);
}
int main(void)
{
//assign theses variables before calling your function
char arrTypeLabels[3][7];
char sortNames[4][11];
float times[4][3];
int n;
//--------------------------
FILE * f; //no need to assign this variable
writeResultsToFile(f, arrTypeLabels, sortNames, times, n); //call your function like that
return 0;
}