std::basic_fstream<CharT,Traits>:: native_handle
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                   basic_fstream::native_handle
                  
                 
                
                
                
                 
                  
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            native_handle_type native_handle
            
             (
            
            
             )
            
            
             const
            
            
             noexcept
            
            
             ;
            
           
           | (since C++26) | |
       Returns the implementation defined underlying handle associated with
       
        basic_filebuf
       
       . The behavior is undefined if
       
        
         is_open
         
          (
         
         
          )
         
        
       
       is
       
        
         
          false
         
        
       
       .
      
Return value
rdbuf ( ) - > native_handle ( )
Notes
| Feature-test macro | Value | Std | Feature | 
|---|---|---|---|
| 
           __cpp_lib_fstream_native_handle
           | 202306L | (C++26) | native handles support | 
Example
| This section is incomplete Reason: example | 
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