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Old 11-02-2005, 11:46 PM   #1
bendeco13
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Registered: Oct 2004
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C++ Sort()


I'm using the sort function in my c++ program. This works great, but it sorts case-sensitive.
Here's what I'm using now:
Code:
sort(files.begin(), files.end());
Is there a way to sort case-insensitive ?

Thanks in advance,
Bendeco
 
Old 11-03-2005, 12:23 AM   #2
anuode
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you can convert all text chars to UP or to LOW and then sort(),now if is it case-insensitive?
 
Old 11-03-2005, 12:26 AM   #3
bendeco13
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I figured it out.
It uses the same idea you mentioned anuode

For anyone else who wants to do this see:
http://www.cs.trinity.edu/~joldham0/...rint-sorted.cc
I couldn't get it to compile using this directly, I had to change the 'caseInsensitiveComp' function so it looked like this:
Code:
bool caseInsensitiveComp(string left, string right) {
  // Convert the strings to all lowercase.
  transform(left.begin(), left.end(), left.begin(), (int(*)(int))tolower);
  transform(right.begin(), right.end(), right.begin(), (int(*)(int))tolower);
  // Compare the strings.
  return left < right;          // string class has <
}
make sure you include <cctype> and <algorithm>

Hope this helps anyone else who has this problem.
Thanks,
Bendeco

Last edited by bendeco13; 11-03-2005 at 12:28 AM.
 
  


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