What's the difference between += and =+?

What's the difference between += and =+?

• Tsuru

  You got it backwards, += is the valid expression. =+ is the oddity. I'm just trying to figure out what the other's purpose is.
  
  n += 1 (n = n + 1)
  n =+ 1 ( )
  
  

• Al Dynarski

  Tom Meschter wrote:

  There is no =+ operator in C#; n =+ 1 will be understood by the compiler as n = +1. The unary + operator exists as a complement to the unary - operator (negation), though as you've noticed it doesn't generally do much. :-) -Tom Meschter Software Dev, Visual C# IDE

  
  
  Ah, duh. I shall slap myself repeatedly. Thanks to both!
  
  

• JoeCoder

  There is no =+ operator in C#; n =+ 1 will be understood by the compiler as n = +1. The unary + operator exists as a complement to the unary - operator (negation), though as you've noticed it doesn't generally do much. :-)
  
  -Tom Meschter
  Software Dev, Visual C# IDE
  
  

• RajKS

  When the following is parsed:
  
  n =+ 1;
  
  The compiler will understand it as:
  
  n = (+1);
  
  The compiler sees an assignment expression not an addition operation like you might be thinking.
  
  Curious though is to know how this is considered a valid expression:
  
  n = +n;
  
  Anyone
  
  
  
  

• DTSlurve

  As mentioned, the unary plus operator is the complement of the unary minus operator. For unary minus:
  
  n = 42;
  n = -n; // n is now -42
  
  For unary plus:
  
  n = 42;
  n = +n; // n is still 42
  
  The unary plus operator is a NOP, but included for mathematical completeness, as far as I understand.

  
  
  
• What's the difference between += and =+?