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title: "__func__ | Microsoft Docs"
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# __func__
**(C++11)** The predefined identifier __func\_\_ is implicitly defined as a string that contains the unqualified and unadorned name of the enclosing function. \__func\_\_ is mandated by the C++ standard and is not a Microsoft extension.  
  
## Syntax  
  
```cpp  
__func__  
```  
  
## Return Value  
 Returns a null-terminated const char array of characters that constains the function name.  
  
## Example  
  
```  
  
#include <string>  
#include <iostream>  
  
namespace Test  
{  
    struct Foo  
    {  
        static void DoSomething(int i, std::string s)  
        {  
           std::cout << __func__ << std::endl; // Output: DoSomething  
        }  
    };  
}  
int main()  
{  
    Test::Foo::DoSomething(42, "Hello");  
  
    return 0;  
}  
  
```  
  
## Requirements  
 C++11