Not sure how the this is behaving, but I get the same answers in C:

#include <stdio.h>

int main(int argc, char **argv)
{
    int a;
    printf( "Int size: %d\n", sizeof( a ) );
    printf( "8 << 0   == %d\n", 8 << 0 );
    printf( "8 << 8   == %d\n", 8 << 8 );
    printf( "8 << 16  == %d\n", 8 << 16 );
    printf( "8 << 24  == %d\n", 8 << 24 );
    /* 
      With this line in, gcc gives me:
      "test.c:12: warning: left shift count >= width of type"
    */
    /* printf( "8 << 32  == %d\n", 8 << 32 ); */

    return 0;
}
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Output:

Int size: 4
8 << 0   == 8
8 << 8   == 2048
8 << 16  == 524288
8 << 24  == 134217728
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