could anyone explain me please what does this piece of code mean?
int **d= (int**)malloc((m+1)*sizeof(int));
What are those ** for the d and the (int) ? Are they someway related to pointers?
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10Yes, they are related to pointers. This is not the way to learn C. Please obtain a textbook. – David Heffernan Sep 13 '14 at 08:46
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2Don't confuse with the * before `sizeof`.. It has nothing to do with pointers. – Maroun Sep 13 '14 at 08:47
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6Shouldn't that be `sizeof(int *)` or, better yet, `sizeof(*d)`? – M Oehm Sep 13 '14 at 08:48
1 Answers
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int** d; //pointer to a pointer to an integer
Haris
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the malloc call returns the pointer to the allocated address.. to cast it into a pointer to pointer to integer, that call is used. that is type casting. – Haris Sep 13 '14 at 09:19
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Note that in C the cast is both redundant and potentially dangerous. See: http://stackoverflow.com/questions/605845/do-i-cast-the-result-of-malloc – Paul R Sep 13 '14 at 09:28
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