c - Incrementing pointer to static allocated array -


by how pointer incremented in these situations , why?

void f(int a[]) {     a++;     printf("%d", *a); }  void g(int a[][m]) {     a++;     printf("%d", *a[0]); }

lets in main have static allocated array n elements , static allocated matrix (2d array) n rows , m columns , i'm calling functions f , g (i couldn't write in code because unable post question lot of code , no text).

in both cases pointers incremented once.:)

a++;

their values changed sizeof of types of objects point to. value of first pointer changed sizeof( int ) , value of second pointer changed sizeof( int[m] ) take account parameter int a[][m] adjusted int ( *a )[m]

thus within functions both pointers point second elements of arrays. two-dimensional array element one-dimensional array. , statement

printf("%d", *a[0]);

will output first element (integer) of second "row" of two-dimensional array.


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