Creating Mulitple Levels of Directories

Friday Feb 16th 2001 by Josh Carlson
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Function that takes a full path and walks that string creating each folder until all are created

I was writing a custom installation script and needed to create many sub directories. I looked at Brad Gutilla's article and thought that there had to be a simpler method. Recursion steps in and saves the day. Not much to say about the code, as it is pretty simple and easy to follow.
void CreateAllDirectories(CString strDir)
{
 // remove ending / if exists
 if(strDir.Right(1)=="\\")
  strDir=strDir.Left(strDir.GetLength()-1); 

 // base case . . .if directory exists
 if(GetFileAttributes(strDir)!=-1) 
  return;

 // recursive call, one less directory
 int nFound = strDir.ReverseFind('\\');
 CreateAllDirectories(strDir.Left(nFound)); 

 // actual work
 CreateDirectory(strDir,NULL); 
}
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