Question

C Programming

222 2 points Write a function for the following specs: • type: int parameter: character array Behavior: • Open the file using the parameter for the file name in read mode. • Return Oif the file opened successfully, 1 if unable to open the file.

Answer 1

SOURCE CODE

#include <stdio.h>

//function prototype

int read_file(char *);

int main()

{

char *file_name;

//asking user to enter filename

printf("Enter file name: ");

scanf("%s", file_name);

//checking if file has been opened successfully using function

if(read_file(file_name) == 0)

printf("File opened successfully");

else

printf("File could not be opened");

return 0;

}

//the function definititon

int read_file(char *fname)

{

//declaring a file pointer variable

FILE *f;

//opening the file in read mode

f = fopen(fname, "r");

//if file was opened successfully, return 0

if(f)

return 0;

else

return 1;

}

OUTPUT WHEN FILE DOES NOT EXIST

OUTPUT WHEN FILE EXISTS