What does fp point to in the program ?#include<stdio.h>int main(){FILE *fp;fp=fopen("trial", "r");return 0;}

Question

What does `fp` point to in the program ?

#include&lt;stdio.h&gt;
int main(){
    FILE *fp;
    fp = fopen(&quot;trial&quot;, &quot;r&quot;);
    return 0;
}

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Solution

In the provided C program, fp is a pointer to a FILE object that is used to handle file operations. Here's a breakdown of what happens in the program:

Declaring the Pointer: FILE *fp; declares a pointer fp of type FILE. This pointer is used to reference the file that is opened.
Opening a File: The function fopen("trial", "r") attempts to open a file named "trial" in read mode ("r"). If the file exists and is opened successfully, fp will point to the FILE structure associated with this file.
NULL Check (Not Present): In the provided code, there is no check to confirm whether fopen was successful. If the file "trial" does not exist, fopen will return NULL, meaning fp will not point to a valid file structure.
Return Statement: The program then ends with return 0;, indicating successful execution.

Summary

In conclusion, fp is intended to point to a FILE object representing the opened file "trial." If the file is successfully opened, it will contain necessary information for file operations; if not, it will be NULL. It is considered good practice to check if fp is NULL after the fopen call to ensure the file was opened successfully before proceeding with further operations.

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What does fp point to in the program ?#include<stdio.h>int main(){FILE *fp;fp=fopen("trial", "r");return 0;}

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