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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

How I can print to stderr in C?

The syntax is almost the same as printf. With printf you give the string format and its contents i.e.:

printf("my %s has %d chars\n", "string format", 30);

With fprintf it is the same, except now you are also specifying the place to print to:

File *myFile;
...
fprintf( myFile, "my %s has %d chars\n", "string format", 30);

Or in your case:

fprintf( stderr, "my %s has %d chars\n", "string format", 30);

Ref : https://bit.ly/3v5U8Zq