In C# you can implicitly concatenate a string and let's say, an integer: string sth = "something" + 0; My questions are: Why, by assuming the fact that you can implicitly concatenate a string and an int, C# disallows initializing strings like this: string sth = 0; // Error: Cannot convert source type 'int' to target type 'string' How C# casts 0 as string. Is it 0.ToString() or (string)0 or something else? How to find an answer of the previous question?

string = string + int: What's behind the scenes?

In C# you can implicitly concatenate a string and let's say, an integer:

string sth = "something" + 0;

My questions are:

Why, by assuming the fact that you can implicitly concatenate a string and an int, C# disallows initializing strings like this:
```
string sth = 0; // Error: Cannot convert source type 'int' to target type 'string'
```
How C# casts 0 as string. Is it 0.ToString() or (string)0 or something else?
How to find an answer of the previous question?