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cpointerscalloc

Save a matrix line into a pointer C

I have this matrix, named Q:

0 0 0 1 0 1 1 1 0 1 1 1 0

0 0 0 0 0 0 0 0 0 0 0 0 0

0 1 0 1 0 1 1 0 0 1 1 1 1

0 0 0 0 0 0 0 0 0 0 0 0 0

0 1 0 1 0 1 0 0 1 1 0 0 0

0 0 0 1 1 0 0 1 1 1 0 1 0

0 0 0 1 1 0 0 1 0 1 0 1 1

0 0 1 1 0 0 1 0 0 1 1 0 1

0 0 1 0 1 1 0 0 0 0 0 0 0

1 0 0 0 1 1 1 1 1 0 1 0 1

0 0 0 0 0 0 0 0 0 0 0 0 0

0 1 0 1 0 1 1 1 0 1 0 0 1

1 1 1 1 1 1 1 0 0 0 1 1 0

and a pointer p dinamically allocated.

p=(int *) calloc(13, sizeof(int));

How can I copy an entire line into p? like this: p <- Q[6][]

Solution

  • use memcpy() like memcpy(p,Q[6],13*sizeof(int));