Question:What is difference between uninitialized pointer and null pointer? 

Answer An uninitialized pointer is a pointer which points unknown memory location while null pointer is pointer which points a null value or base address of segment. For example: 

int *p;   //Uninitialized pointer
int *q= (int *)0;  //Null pointer
#include<stdio.h>
int *r=NULL;   //Null pointer

What will be output of following c program?
#include<string.h>
#include<stdio.h>
int main(){
    char *p;  //Uninitialized pointer
    char *q=NULL;   //Null pointer;
    strcpy(p,"cquestionbank");
    strcpy(q,"cquestionbank");
    
    printf("%s  %s",p,q);
    return 0;
}
Output: cquestionbank (null) 

+ Report

Mohammad Towhidul Islam

Editor, VCampus

Your Name

Your Email

Type of Report
Spelling MistakeIncorrect AnswerGrammar MistakeContent MissingImproper Text FormatInsufficient AnswerDuplicate QuestionImproper Sentence StructureImproper Equation/FormulaOther

Description