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My program uses the code:
Convert.ToDouble(Int32.MaxValue)
Fairly regularly. I was just curious about how this is handled by the compiler. Is it stored as a static double or is it executed in run time?
531
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The constant Int32.MaxValue is stored at compile time, and in fact your code would be converted to Convert.ToDouble(0x7FFFFFFF) at compile time. The equivalent IL is:
ldc.i4 FF FF FF 7F
call System.Convert.ToDouble
This value is also saved so it can be retrieved at run-time through reflection.
However, Convert.ToDouble is a function that is only evaluated at run-time.
As minitech suggests, (double)Int32.MaxValue is evaluated at compile-time. The equivalent IL is:
ldc.r8 00 00 C0 FF FF FF DF 41
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