Increment Operator Magic in C#

Question

Why is the Output of this code gives the value 100. Please help me to understand this behavior.

static void Main(string[] args)  
{  
    int i = 100;  
    for (int n = 0; n < 100; n++)  
    {  
         i = i++;  
    }  
    Console.WriteLine(i);  // This gives the Value 100 why?
}

I have ran the same code in both C and C# compiler. in C compiler gives the value 200 in C# compiler gives the value 100.

why the same piece of code is behaving like this in two Compilers?

[This is a more suitable duplicate question](http://stackoverflow.com/questions/6716189/i-i-doesnt-increment-i-why) — musefan, Jan 02 '14 at 10:01

score 2 · Answer 1 · answered Jan 02 '14 at 09:56

This is the same as

static void Main(string[] args)  
{  
    int i = 100;  
    for (int n = 0; n < 100; n++)  
    {  
       int x = i;
       i++;
       i = x;  
    }  
    Console.WriteLine(i);  // This gives the Value 100 why?
}

You reassign the 100 all the time in the loop

score 0 · Answer 2 · answered Jan 02 '14 at 09:57

0

Because it is post increment. First 100 will be assigned then incremented.

i = i++;

hence the output.

answered Jan 02 '14 at 09:57

Ehsan

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After assign the value is should Increment i right.? why that is not happening.... the same code I have executed in C compiler also. I am getting the value 200. Waht is the difference? – Akshay Joy Jan 02 '14 at 10:34

Increment Operator Magic in C#

2 Answers2