c programming closed

Question

What is the output of this C code?

Comments

Maybe this helps you.

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Can a pointer change an array element?

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yes .

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I read somewhere...
"Using pointers we can access any particular location of an array but we can not change that location."

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"Using pointers we can access any particular location of an array but we can not change that location"

Thats correct we cannot change base address of an array .i.e. char p[]= "abc"; here we cant change base addrees of array.

and when string stores as char *p= "abc"; then we cannot change element of this string.

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Can you explain it with some example?

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1. char *p= "abc"; is called as string constant means when string stored as char *p= "abc" , then we cannot update any character in given strings. i.e. string stored in read only area.  so its generate error.

2. char p[]= "abc"; simple array contain string abc so here by using base address and index value we can change any character assume base address =100 i.e. *(100 +1)=d then array look like adc .but here we cannot change the base address of array i.e. if we do p = 1000 then we lost array elements and may be 1000 location assign to some other variable. so it gives error.

reffer : http://www.geeksforgeeks.org/storage-for-strings-in-c/