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Good morning, afternoon or night,
Will either the MSIL or the JIT compiler replace things like 1 << 5 or 1 << 31 in the code with 32 and 2147483648, respectively, or will they wait for method execution to evaluate those constants "just in time" since they involve other methods (operators)?
Thank you very much.
581
The equation to find the constant of proportionality is written as k = y/x. Here, k is the constant, y is the denominator, and x is the numerator of the ratio.
Calculating C-values The relative molecular mass may be converted to an absolute value by multiplying it by the atomic mass unit (1 u) in picograms. Thus, 615.8771 is multiplied by 1.660539 × 10−12 pg.
A constant is a name given to the variable whose values can't be altered or changed. A constant is very similar to variables in the C programming language, but it can hold only a single variable during the execution of a program.
A constant is a value or variable that can't be changed in the program, for example: 10, 20, 'a', 3.4, "c programming" etc.
Yes. Look at the compiled IL for a program that just does Console.WriteLine(1 << 5) and you'll see it's the same as that for Console.WriteLine(32) or Console.WriteLine(0x20). The same applies for plenty of other such constants.
29
Try it.
The following code
static void Main ( string[] args )
{
Console.WriteLine ( 1 << 4 );
}
Gets compiled to
IL_0000: nop
IL_0001: ldc.i4.s 16
IL_0003: call void [mscorlib]System.Console::WriteLine(int32)
IL_0008: nop
IL_0009: ret
It just loads the constant 16 and passes it to WriteLine.
96
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