text: /*
   * $Id: vecmin.cc,v 1.4 2005/06/02 18:56:08 julianc Exp $
   *
   * Copyright (C) 1997 Todd Veldhuizen <tveldhui@oonumerics.org>
   * All rights reserved.  Please see <blitz/blitz.h> for terms and
   * conditions of use.
   *
   */
  
  #ifndef BZ_VECMIN_CC
  #define BZ_VECMIN_CC
  
  #ifndef BZ_VECGLOBS_H
   #error <blitz/vecmin.cc> must be included via <blitz/vecglobs.h>
  #endif
  
  BZ_NAMESPACE(blitz)
  
  template<typename P_expr>
  inline
  Extremum<_bz_typename P_expr::T_numtype, int> _bz_vec_min(P_expr vector)
  {
      typedef _bz_typename P_expr::T_numtype T_numtype;
  
      T_numtype minValue = vector(0);
      int minIndex = 0;
      int length = vector._bz_suggestLength();
  
      if (vector._bz_hasFastAccess())
      {
          for (int i=1; i < length; ++i)
          {
              T_numtype value = vector._bz_fastAccess(i);
              if (value < minValue)
              {
                  minValue = value;
                  minIndex = i;
              }
          }
      }
      else {
          for (int i=1; i < length; ++i)
          {
              T_numtype value = vector(i);
              if (value < minValue)
              {
                  minValue = value;
                  minIndex = i;
              }
          }
      }
  
      return Extremum<T_numtype, int>(minValue, minIndex);
  }
  
  // min(vector)
  template<typename P_numtype>
  inline
  Extremum<P_numtype,int> (min)(const Vector<P_numtype>& x)
  {
      return _bz_vec_min(x._bz_asVecExpr());
  }
  
  // min(expr)
  template<typename P_expr>
  inline
  Extremum<_bz_typename P_expr::T_numtype,int> (min)(_bz_VecExpr<P_expr> x)
  {
      return _bz_vec_min(x);
  }
  
  // min(vecpick)
  template<typename P_numtype>
  inline
  Extremum<P_numtype, int> (min)(const VectorPick<P_numtype>& x)
  {
      return _bz_vec_min(x._bz_asVecExpr());
  }
  
  // min(TinyVector)
  template<typename P_numtype, int N_length>
  inline
  Extremum<P_numtype, int> (min)(const TinyVector<P_numtype, N_length>& x)
  {
      return _bz_vec_min(x._bz_asVecExpr());
  }
  
  // minIndex(vector)
  template<typename P_numtype>
  inline
  int minIndex(const Vector<P_numtype>& x)
  {
      return _bz_vec_min(x._bz_asVecExpr()).index();
  }
  
  // maxIndex(expr)
  template<typename P_expr>
  inline
  int minIndex(_bz_VecExpr<P_expr> x)
  {
      return _bz_vec_min(x).index();
  }
  
  // minIndex(vecpick)
  template<typename P_numtype>
  int minIndex(const VectorPick<P_numtype>& x)
  {
      return _bz_vec_min(x._bz_asVecExpr()).index();
  }
  
  // minIndex(TinyVector)
  template<typename P_numtype, int N_length>
  int minIndex(const TinyVector<P_numtype, N_length>& x)
  {
      return _bz_vec_min(x._bz_asVecExpr()).index();
  }
  
  // minValue(vector)
  template<typename P_numtype>
  inline
  int minValue(const Vector<P_numtype>& x)
  {
      return _bz_vec_min(x._bz_asVecExpr()).value();
  }
  
  // minValue(expr)
  template<typename P_expr>
  inline
  int minValue(_bz_VecExpr<P_expr> x)
  {
      return _bz_vec_min(x).value();
  }
  
  // minValue(vecpick)
  template<typename P_numtype>
  int minValue(const VectorPick<P_numtype>& x)
  {
      return _bz_vec_min(x._bz_asVecExpr()).value();
  }
  
  // minValue(TinyVector)
  template<typename P_numtype, int N_length>
  int minValue(const TinyVector<P_numtype, N_length>& x)
  {
      return _bz_vec_min(x._bz_asVecExpr()).value();
  }
  
  BZ_NAMESPACE_END
  
  #endif // BZ_VECMIN_CC
  
  