What does the symbol before a variable name mean in C

Question

Possible Duplicate    What  39 s the use meaning of the   character in variable names in C         I understand that the   symbol can be used before a string literal to change how the compiler parses the string   But what does it mean when a variable name is prefixed with the   symbol

User · Answer

An important point that the other answers forgot, is that "@keyword" is compiled into "keyword" in the CIL.

So if you have a framework that was made in, say, F#, which requires you to define a class with a property named "class", you can actually do it.

It is not that useful in practice, but not having it would prevent C# from some forms of language interop.

I usually see it used not for interop, but to avoid the keyword restrictions (usually on local variable names, where this is the only effect) ie.

private void Foo(){
   int @this = 2;
}

but I would strongly discourage that! Just find another name, even if the 'best' name for the variable is one of the reserved names.

User · Answer

An important point that the other answers forgot, is that "@keyword" is compiled into "keyword" in the CIL.

So if you have a framework that was made in, say, F#, which requires you to define a class with a property named "class", you can actually do it.

It is not that useful in practice, but not having it would prevent C# from some forms of language interop.

I usually see it used not for interop, but to avoid the keyword restrictions (usually on local variable names, where this is the only effect) ie.

private void Foo(){
   int @this = 2;
}

but I would strongly discourage that! Just find another name, even if the 'best' name for the variable is one of the reserved names.

User · Answer

It allows you to use a C  keyword as a variable   For example   class MyClass      public string name   get  set       public string  class   get  set

User · Answer

It allows you to use a C  keyword as a variable   For example   class MyClass      public string name   get  set       public string  class   get  set

User · Answer

The   symbol allows you to use reserved word   For example   int  class   15    The above works  when the below wouldn t   int class   15

User · Answer

The   symbol serves 2 purposes in C    Firstly  it allows you to use a reserved keyword as a variable like this   int  int   15    The second option lets you specify a string without having to escape any characters  For instance the     character is an escape character so typically you would need to do this   var myString    c   myfolder  myfile txt    alternatively you can do this   var myString     c  myFolder myfile txt

User · Answer

The   symbol allows you to use reserved word   For example   int  class   15    The above works  when the below wouldn t   int class   15

User · Answer

The   symbol allows you to use reserved word   For example   int  class   15    The above works  when the below wouldn t   int class   15

User · Answer

The   symbol serves 2 purposes in C    Firstly  it allows you to use a reserved keyword as a variable like this   int  int   15    The second option lets you specify a string without having to escape any characters  For instance the     character is an escape character so typically you would need to do this   var myString    c   myfolder  myfile txt    alternatively you can do this   var myString     c  myFolder myfile txt

User · Answer

The   symbol serves 2 purposes in C    Firstly  it allows you to use a reserved keyword as a variable like this   int  int   15    The second option lets you specify a string without having to escape any characters  For instance the     character is an escape character so typically you would need to do this   var myString    c   myfolder  myfile txt    alternatively you can do this   var myString     c  myFolder myfile txt

User · Answer

It allows you to use a C  keyword as a variable   For example   class MyClass      public string name   get  set       public string  class   get  set

User · Answer

The   symbol allows you to use reserved word   For example   int  class   15    The above works  when the below wouldn t   int class   15

User · Answer

An important point that the other answers forgot, is that "@keyword" is compiled into "keyword" in the CIL.

So if you have a framework that was made in, say, F#, which requires you to define a class with a property named "class", you can actually do it.

It is not that useful in practice, but not having it would prevent C# from some forms of language interop.

I usually see it used not for interop, but to avoid the keyword restrictions (usually on local variable names, where this is the only effect) ie.

private void Foo(){
   int @this = 2;
}

but I would strongly discourage that! Just find another name, even if the 'best' name for the variable is one of the reserved names.

User · Answer

An important point that the other answers forgot, is that "@keyword" is compiled into "keyword" in the CIL.

So if you have a framework that was made in, say, F#, which requires you to define a class with a property named "class", you can actually do it.

It is not that useful in practice, but not having it would prevent C# from some forms of language interop.

I usually see it used not for interop, but to avoid the keyword restrictions (usually on local variable names, where this is the only effect) ie.

private void Foo(){
   int @this = 2;
}

but I would strongly discourage that! Just find another name, even if the 'best' name for the variable is one of the reserved names.

User · Answer

The   symbol serves 2 purposes in C    Firstly  it allows you to use a reserved keyword as a variable like this   int  int   15    The second option lets you specify a string without having to escape any characters  For instance the     character is an escape character so typically you would need to do this   var myString    c   myfolder  myfile txt    alternatively you can do this   var myString     c  myFolder myfile txt

User · Answer

It allows you to use a C  keyword as a variable   For example   class MyClass      public string name   get  set       public string  class   get  set

[c#] What does the @ symbol before a variable name mean in C#?

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