OptiVec: MF_Cols

MF_Cols_rotate

MD_Cols_rotate

ME_Cols_rotate

MCF_Cols_rotate

MCD_Cols_rotate

MCE_Cols_rotate

Function

rotate all columns by a specified number of positions; thereby, whole rows are moved

Syntax C/C++	#include <MFstd.h> void MF_Cols_rotate( fMatrix MA, unsigned ht, unsigned len, int pos );
C++ MatObj	#include <OptiVec.h> void matrix<T>::Cols_rotate( const int pos );
Pascal/Delphi	uses MFstd; procedure MF_Cols_rotate( MA:fMatrix; ht, len:UInt; pos:Integer );

Description

MA_i,j = MA_{ht-pos+i, j}, i=0,..,pos-1
MA_i,j = MA_{i-pos, j}, i=pos,...,ht-1

This function is rather inefficient, as it needs to internally allocate and de-allocate work-space each time it is called. If your application contains frequent calls to this function, we recommend to allocate some matrix MBuf as buffer memory and replace the calls to MF_Cols_rotate by calls to MF_Cols_rotate_buf.