Start

prog.c:23:10: warning: excess elements in scalar initializer
        {1, 2, 3, 4},
            ^
prog.c:24:8: warning: excess elements in scalar initializer
                {-1, -2, -3, -4},
                     ^~
prog.c:25:10: warning: excess elements in scalar initializer
            {0, 0, 0, 0}
                ^
prog.c:27:7: warning: incompatible pointer types passing 'int [12]' to parameter of type 'int (*)[4]' [-Wincompatible-pointer-types]
        test(a2);
             ^~
prog.c:3:15: note: passing argument to parameter 'a' here
void test(int a[3][4]) {
              ^
prog.c:31:6: warning: suggest braces around initialization of subobject [-Wmissing-braces]
        1, 2, 3, 4,
        ^~~~~~~~~~
        {         }
prog.c:32:6: warning: suggest braces around initialization of subobject [-Wmissing-braces]
        -1, -2, -3, -4,
        ^~~~~~~~~~~~~~
        {             }
prog.c:33:6: warning: suggest braces around initialization of subobject [-Wmissing-braces]
        0, 0, 0, 0
        ^~~~~~~~~~
        {         }
prog.c:43:7: warning: incompatible pointer types passing 'int [12]' to parameter of type 'int (*)[4]' [-Wincompatible-pointer-types]
        test(a4);
             ^~
prog.c:3:15: note: passing argument to parameter 'a' here
void test(int a[3][4]) {
              ^
8 warnings generated.

1:
1 2 3 4
-1 -2 -3 -4
0 0 0 0

2:
1 -1 0 0
0 0 0 0
0 0 0 0

3:
1 2 3 4
-1 -2 -3 -4
0 0 0 0

4:
1 2 3 4
-1 -2 -3 -4
0 0 0 0

0

Finish