c - Pointers and multidimensional arrays -


i want have array of k 2-element arrays of ints. code:

int **pipe_fd_ptr; pipe_fd_ptr = malloc(k*sizeof(int*)); for(i = 0; < k; i++) {     pipe_fd_ptr = malloc(2*sizeof(int)); }  // testing for(i = 0; i<k; i++) {     for(j=0;j<2;j++)         pipe_fd_ptr[i][j] =j; }

i segfault. doing wrong?

should 

for(i = 0; < k; i++) {     pipe_fd_ptr[ ] = malloc(2*sizeof(int)); }

with pipe_fd_ptr = malloc(k*sizeof(int*)); allocated space k pointers int iterate trough array , allocate memory each pointer pipe_fd_ptr[ ] = malloc(2*sizeof(int));


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