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Core Dump (Segmentation fault) in C/C++
In this tutorial, we will be discussing a program to understand core dump (segmentation fault) in C/C++.
It happens due to reasons like when code tries to write on read only memory or tries to access corrupt memory location.
Example
Modifying a string literal
int main(){
char *str;
str = "GfG";
*(str+1) = 'n';
return 0;
}Accessing out of array index bounds
#include <iostream>
using namespace std;
int main(){
int arr[2];
arr[3] = 10;
return 0;
}Accessing an address which is freed
#include <stdio.h>
#include<alloc.h>
int main(void){
int* p = malloc(8);
*p = 100;
free(p);
*p = 110;
return 0;
}Output
Abnormal termination of program
Updated on: 16-Mar-2020
4K+ Views
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