Remove duplicate spaces (in places)

[DtY]

As part of a project, I wanted to remove all duplicate spaces (ie, -- would become -, --- would become -, where each dash is a space), and I didn't need it to be in a different buffer, so I did it in place.
It works by overwriting the original buffer as it goes over the input. I haven't done any benchmarking, but it works pretty fast (near 2k file in no perceived time on my laptop).

C:

/*     Removes duplicate spaces, in place */ void rmDblSpace(char *in, unsigned int length) {     unsigned int inPlace, outPlace; /* Points to where the input and output         are coming from/going to */     inPlace = 0;     outPlace = 0;         while (inPlace <= length) {         in[outPlace] = in[inPlace];         outPlace++;         if (in[inPlace] == ' ') {             while (in[inPlace] == ' '){ inPlace++; }         } else {             inPlace++;         }     } }

The reason that the length is taken in as an argument and not found with strlen() is because it's just one operation I need to do on a possibly large file, so to save time, I just passed the length in as an argument.

Go ahead and do what you want with it, take credit, what ever.