// slctsort.h

extern void Sort( int vec[], int size );
  // PRE:  size >= 0
  // && 0..size-1 are legal indexes of vec
  // MODIFIES: vec[0..size-1]
  // POST: vec[0..size-1] contains the
  // same values as vec[0..size-1]<entry>
  // but sorted into nondecreasing order


