Significance of assigning a number using bitwise operators

[Neeru]

Hi,

can anyone let me know the difference between at performance level, if any, between the following cases, during assignment?

case 1: #define Value_16 16

and

case 2: #define Value_16 (1<<4)

Thanks in advance.

[cire]

There is no difference. These are both compile time constants.

[chuxnorth]

Only a few nano seconds faster during _compiling_ using case #1 vs. case #2. The resultant executable code would be the same.