Bitshift and integer promotion?

Question

Normally, C requires that a binary operator\'s operands are promoted to the type of the higher-ranking operand. This can be exploited to avoid filling code with verbose cast

Answer 1

The trouble really is that promotion only works up to whatever your platform defines as an int. As some other answers have stated, the bit-shift operator will promote the left operand to an int. However, here an int is defined as a 32-bit value. The integer conversion will not promote to a long long (64-bit).