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int main( ) {
 char str[] = { 48, 49, 50, 51, 52, 53, 54};
 int *p = (int *) (str + 1);
 char *pStr = (char *)p;
 printf("%c\n", *pStr);
}
 

what is the o/p ?
in *p what gets stored and *pStr what gets stored?
Posted 16-Jan-13 0:17am

1 solution

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Solution 1

Try it!
Compile it, run it and see.
 
Output is "1"
p contains a pointer to the second byte in the array of characters
So does pStr.
 
It might be different if you try to actually use p as a pointer to an int and retrieve an integer value from it - some systems will fail, because the int pointer is (probably) not word aligned. But char values don't have to have any particular alignment, so that works fine.
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Comments
Andreas Gieriet at 16-Jan-13 8:11am
   
My 5!
Key is, as you say, as long as you do not de-reference the non-aligned pointer, all is fine.
Cheers
Andi

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