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C Exercises: Abort the current process

C Variable Type : Exercise-17 with Solution

Write a C program to abort the current process.

Sample Solution:

C Code:

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

int main ()
	{
		FILE * FilePtr;
		FilePtr= fopen ("myfile.txt","r");

		if (FilePtr == NULL)
		{
			fputs ("\n File does not exist or error, in opening the file.\n",stderr);
			abort();
		}

		fclose (FilePtr);

		return 0;
	}

Flowchart:

C Exercises Flowchart: Abort the current process

C Programming Code Editor:

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C Programming: Tips of the Day

Static variable inside of a function in C

The scope of variable is where the variable name can be seen. Here, x is visible only inside function foo().

The lifetime of a variable is the period over which it exists. If x were defined without the keyword static, the lifetime would be from the entry into foo() to the return from foo(); so it would be re-initialized to 5 on every call.

The keyword static acts to extend the lifetime of a variable to the lifetime of the programme; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over all future calls to foo().

Ref : https://bit.ly/3fOq7XP