Calculations in source

[BarryG]

Hi, if my source code has 86400*7 in it (to calculate 7 days for a seconds query) does the compiler internally do the calculation with each run, or does it replace it with 604800 in the compiled executable? Wanting to optimise my program as much as possible.

[infratec]

To be safe, use a constant:

Code: Select all

#SecondsPerDay = 86400*7

[chi]

...does the compiler internally do the calculation with each run, or does it replace it with 604800 in the compiled executable?

The latter...

Code: Select all

MOV    rax,604800

(also as constant)

[BarryG]

Thank you both.