How does the c# compiler concat strings [duplicate]

Question

Possible Duplicate:
Does C# optimize the concatenation of string literals?

string foo = "bar1" + "bar2" + "bar3";

Does the c# compiler internally apply the string.Concat method ?

Then it would be better to use the + operator for the readability sake.

Chris Shain · Accepted Answer · 2012-01-14 19:27:06Z

3

With literals, this is equivalent to:

string foo = "bar1bar2bar3";

No concatenation is performed- they are combined at compile time into a constant.

answered Jan 14, 2012 at 19:27

Chris Shain

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2 Comments

I think he meant in a case where you'd say string foo = "bar: " + bar + " (bar bar)"; where bar is unknown at compile time.

Possibly, but he didn't write the question that way.