errorhandling.c

#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <math.h>
#include <ctype.h>
#include <stdlib.h>
#include <time.h>
#include <ctype.h>
#include <errno.h>

int main() {
    // open file error handling
    /*
    FILE * pf;
    int errnum;
    pf = fopen ("unexist.txt", "rb");
    if (pf == NULL) {
        errnum = errno;
        fprintf(stderr, "Value of errno: %d\n", errno);
        perror("Error printed by perror");
        fprintf(stderr, "Error opening file: %s\n", strerror( errnum ));
    } else {
        fclose (pf);
    }
    */

    // Divide by zero error handling
    /*
    int dividend = 20;
    int divisor = 0;
    int quotient;
    if( divisor == 0){
        fprintf(stderr, "Division by zero! Exiting...\n");
        exit(-1);
    }
    quotient = dividend / divisor;
    fprintf(stderr, "Value of quotient : %d\n", quotient );
    exit(0); 
    */

    // Program exit status
    /*
    int dividend = 20;
    int divisor = 5;
    int quotient;
    if( divisor == 0) {
        fprintf(stderr, "Division by zero! Exiting...\n");
        exit(EXIT_FAILURE);
    }  
    quotient = dividend / divisor;
    fprintf(stderr, "Value of quotient : %d\n", quotient );
    exit(EXIT_SUCCESS);
    */

    return 0;
}

// C - Error Handling. (2012, June 10). Tutorials Point. Retrieved April 16, 2023, from https://www.tutorialspoint.com/cprogramming/c_error_handling.htm