C program complies but screen on console remains black

I was writing a C program that would read and merge 3 files together (program not complete yet), however, as I was testing I realized the program compiles but the screen on the console remains blank!

Any help is appreciated, especially why is it blank?

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

int main()

printf("test");
//open three files for merging
FILE *fp1 = fopen("american0.txt","r");
FILE *fp2 = fopen("american1.txt","r");
FILE *fp3 = fopen("american2.txt","r");

printf("test");
//open file to store the result
FILE *fpm = fopen("words.txt", "w");

//creating an array to save the files data
char c;
char mergedFile[50];

//checking to make sure files are being read
if(fp1 == NULL && fp2 == NULL && fp3 == NULL && fpm == NULL)

printf("Could not open one or all of the files.n");
printf("Exiting program!");
exit(0);

printf("test");
//initializing counter values

//inserting data from file into an array
while ((c = fgetc(fp1)) != EOF)

fputc(c, mergedFile);

while ((c = fgetc(fp2)) != EOF)

fputc(c, mergedFile);

while ((c = fgetc(fp3)) != EOF)

fputc(c, mergedFile);


printf("%s",mergedFile[0]);
printf("test");

return 0;



fputc

FILE*

mergedFile

char mergedFile[50];

fpm

mergedFile

printf("%s",mergedFile[0]);

%s

const char*

char

printf

1 Answer
1

Error --> fputc requires a file pointer as it's second argument rather than an array: int fputc ( int character, FILE * stream );

fputc

int fputc ( int character, FILE * stream );

Points to be taken care of:

char

Here is a minimal corrected version:

#include <stdio.h>
#include <stdlib.h>
#define MAX 1000 //ADDED NEW

int main()

//open three files for merging
FILE *fp1 = fopen("american0.txt","r");
FILE *fp2 = fopen("american1.txt","r");
FILE *fp3 = fopen("american2.txt","r");

//open file to store the result
FILE *fpm = fopen("words.txt", "w");



//creating an array to save the files data
int c;
int i=0;
char mergedFile[MAX]=0; //MODIFIED & INITIALIZED

//checking to make sure files are being read
if(fp1 == NULL && fp2 == NULL && fp3 == NULL && fpm == NULL)

printf("Could not open one or all of the files.n");
printf("Exiting program!");
exit(0);

//initializing counter values

//inserting data from file into an array
while (((c = fgetc(fp1)) != EOF)&&(i<MAX)) //MODIFIED

mergedFile[i++]=c; //MODIFIED

while (((c = fgetc(fp2)) != EOF)&&(i<MAX)) //MODIFIED

mergedFile[i++]=c; //MODIFIED

while (((c = fgetc(fp3)) != EOF)&&(i<MAX)) //MODIFIED

mergedFile[i++]=c; //MODIFIED


printf("%s",mergedFile); //MODIFIED

return 0;




int c;

char c;

fgetc()

if

||

&&

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