VectorUtilities.h Source File

00001 /* OOQP                                                               *
00002  * Authors: E. Michael Gertz, Stephen J. Wright                       *
00003  * (C) 2001 University of Chicago. See Copyright Notification in OOQP */
00004 
00005 #ifndef VECTORUTILITIES
00006 #define VECTORUTILITIES
00007 
00008 #include <iostream.h>
00009 
00010 void set_to_zero( double v[], int n, int stride );
00011 void writef_to_stream( double v[], int n, int stride,
00012                        ostream& out, const char format[] );
00013 void set_to_constant( double v[], int n, int stride, double c );
00014 void add_constant( double v[], int n, int stride, double c );
00015 double stepbound( double v[], int n, int incv,
00016                                   double s[], int incs, double max );
00017 double stepbound( double v[], int n, int incv,
00018                                   double s[], int incs,
00019                                   double b[], int incb, double u[], int incu,
00020                                   double max );
00021 void axdzpy( int n, double alpha,
00022              double x[], int incx, double z[], int incz,
00023              double y[], int incy );
00024 
00025 double find_blocking( double w[],     int n, int incw,
00026                     double wstep[],        int incwstep,
00027                     double u[],            int incu,
00028                     double ustep[],        int incustep,
00029                     double maxStep,
00030                     double *w_elt,          double *wstep_elt,
00031                     double *u_elt,          double *ustep_elt,
00032                     int& first_or_second );
00033 
00034 #endif