C ++ file copy application skills

In C ++ programming languages, file operations are a very important application technology. In this article, we will explain the application methods related to C ++ file copying in detail, so that we can get help in practical programming in the future.

Example of C ++ file copy code:

 
 

  
  
# Include <iostream. h>
  
  
# Include <afx. h>
  
  
Void main ()
  
  
{
  
  
Char SourceName [81];
  
  
Char DestinName [81];
  
  
Cout <"\ n enter the source file name :";
  
  
Cin> SourceName;
  
  
Cout <"\ n enter the target file name :";
  
  
Cin> DestinName;
  
  
Try
  
  
{
  
  
CFile fileSource (SourceName, CFile: modeRead );
  
  
CFile fileDestin (DestinName, CFile: modeCreate | CFile: modeWrite );
  
  
Char c;
  
  
While (fileSource. Read (& c, 1 ))
  
  
FileDestin. Write (& c, 1 );
  
  
}
  
  
Catch (CFileException * e)
  
  
{
  
  
Switch (e-> m_cause)
  
  
{
  
  
Case CFileException: fileNotFound:
  
  
Cout <"file not found! "<Endl;
  
  
Break;
  
  
Case CFileException: badPath:
  
  
Cout <"path input error! "<Endl;
  
  
Break;
  
  
Case CFileException: accessDenied:
  
  
Cout <"no access permission! "<Endl;
  
  
Break;
  
  
Case CFileException: diskFull:
  
  
Cout <"Disk Full! "<Endl;
  
  
Break;
  
  
Default:
  
  
Cout <"an unknown error occurred during file copy! "<Endl;
  
  
Break;
  
  
}
  
  
}
  
  
}
 
 

The preceding section describes how to copy C ++ files.