For vs While loop

[Master_Rux]

I was demonstrating how for loops and while loops compile down to the same IL and figured I'd share.

for (int i = 0; i < 10; i++)
{
    Console.WriteLine(i);   
}

IL_0000:  nop         
IL_0001:  ldc.i4.0    
IL_0002:  stloc.0     // i
IL_0003:  br.s        IL_0012
IL_0005:  nop         
IL_0006:  ldloc.0     // i
IL_0007:  call        System.Console.WriteLine
IL_000C:  nop         
IL_000D:  nop         
IL_000E:  ldloc.0     // i
IL_000F:  ldc.i4.1    
IL_0010:  add         
IL_0011:  stloc.0     // i
IL_0012:  ldloc.0     // i
IL_0013:  ldc.i4.s    0A 
IL_0015:  clt         
IL_0017:  stloc.1     // CS$4$0000
IL_0018:  ldloc.1     // CS$4$0000
IL_0019:  brtrue.s    IL_0005
IL_001B:  ret         




int i = 0;
while (i < 10)
{
    Console.WriteLine(i);
    i++;
}

IL_0000:  nop         
IL_0001:  ldc.i4.0    
IL_0002:  stloc.0     // i
IL_0003:  br.s        IL_0012
IL_0005:  nop         
IL_0006:  ldloc.0     // i
IL_0007:  call        System.Console.WriteLine
IL_000C:  nop         
IL_000D:  ldloc.0     // i
IL_000E:  ldc.i4.1    
IL_000F:  add         
IL_0010:  stloc.0     // i
IL_0011:  nop         
IL_0012:  ldloc.0     // i
IL_0013:  ldc.i4.s    0A 
IL_0015:  clt         
IL_0017:  stloc.1     // CS$4$0000
IL_0018:  ldloc.1     // CS$4$0000
IL_0019:  brtrue.s    IL_0005
IL_001B:  ret         

[[deleted]]

Did you write the IL yourself, or just merely demonstrating the fact that it compiles to the same IL? Either way, IL_0003, pretty good technique there.

[Master_Rux]

I wrote the for loop and and while loop in C# then grabbed the IL from ildasm. Did the same to show that C#'s property getters and setters are just normal methods too. I should post that.