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<html><!-- Created using the cpp_pretty_printer from the dlib C++ library. See http://dlib.net for updates. --><head><title>dlib C++ Library - cblas_chpr2.c</title></head><body bgcolor='white'><pre>
<font color='#009900'>/*
* cblas_chpr2.c
* The program is a C interface to chpr2.
*
* Keita Teranishi 5/20/98
*
*/</font>
<font color='#0000FF'>#include</font> <font color='#5555FF'>&lt;</font>stdio.h<font color='#5555FF'>&gt;</font>
<font color='#0000FF'>#include</font> <font color='#5555FF'>&lt;</font>stdlib.h<font color='#5555FF'>&gt;</font>
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='cblas.h.html'>cblas.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='cblas_f77.h.html'>cblas_f77.h</a>"
<font color='#0000FF'><u>void</u></font> <b><a name='cblas_chpr2'></a>cblas_chpr2</b><font face='Lucida Console'>(</font><font color='#0000FF'>const</font> <font color='#0000FF'>enum</font> CBLAS_ORDER order, <font color='#0000FF'>const</font> <font color='#0000FF'>enum</font> CBLAS_UPLO Uplo,
<font color='#0000FF'>const</font> CBLAS_INT_TYPE N,<font color='#0000FF'>const</font> <font color='#0000FF'><u>void</u></font> <font color='#5555FF'>*</font>alpha, <font color='#0000FF'>const</font> <font color='#0000FF'><u>void</u></font> <font color='#5555FF'>*</font>X,
<font color='#0000FF'>const</font> CBLAS_INT_TYPE incX,<font color='#0000FF'>const</font> <font color='#0000FF'><u>void</u></font> <font color='#5555FF'>*</font>Y, <font color='#0000FF'>const</font> CBLAS_INT_TYPE incY, <font color='#0000FF'><u>void</u></font> <font color='#5555FF'>*</font>Ap<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'><u>char</u></font> UL;
<font color='#0000FF'>#ifdef</font> F77_CHAR
F77_CHAR F77_UL;
<font color='#0000FF'>#else</font>
<font color='#0000FF'>#define</font> F77_UL <font color='#5555FF'>&amp;</font>UL
<font color='#0000FF'>#endif</font>
<font color='#0000FF'>#ifdef</font> F77_INT
F77_INT F77_N<font color='#5555FF'>=</font>N, F77_incX<font color='#5555FF'>=</font>incX, F77_incY<font color='#5555FF'>=</font>incY;
<font color='#0000FF'>#else</font>
<font color='#0000FF'>#define</font> F77_N N
<font color='#0000FF'>#define</font> F77_incX incx
<font color='#0000FF'>#define</font> F77_incY incy
<font color='#0000FF'>#endif</font>
CBLAS_INT_TYPE n, i, j, tincx, tincy, incx<font color='#5555FF'>=</font>incX, incy<font color='#5555FF'>=</font>incY;
<font color='#0000FF'><u>float</u></font> <font color='#5555FF'>*</font>x<font color='#5555FF'>=</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>float</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>X, <font color='#5555FF'>*</font>xx<font color='#5555FF'>=</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>float</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>X, <font color='#5555FF'>*</font>y<font color='#5555FF'>=</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>float</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>Y,
<font color='#5555FF'>*</font>yy<font color='#5555FF'>=</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>float</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>Y, <font color='#5555FF'>*</font>tx, <font color='#5555FF'>*</font>ty, <font color='#5555FF'>*</font>stx, <font color='#5555FF'>*</font>sty;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>order <font color='#5555FF'>=</font><font color='#5555FF'>=</font> CblasColMajor<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>Uplo <font color='#5555FF'>=</font><font color='#5555FF'>=</font> CblasLower<font face='Lucida Console'>)</font> UL <font color='#5555FF'>=</font> '<font color='#FF0000'>L</font>';
<font color='#0000FF'>else</font> <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>Uplo <font color='#5555FF'>=</font><font color='#5555FF'>=</font> CblasUpper<font face='Lucida Console'>)</font> UL <font color='#5555FF'>=</font> '<font color='#FF0000'>U</font>';
<font color='#0000FF'>else</font>
<b>{</b>
<font color='#BB00BB'>cblas_xerbla</font><font face='Lucida Console'>(</font><font color='#979000'>2</font>, "<font color='#CC0000'>cblas_chpr2</font>","<font color='#CC0000'>Illegal Uplo setting, %d\n</font>",Uplo <font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font>;
<b>}</b>
<font color='#0000FF'>#ifdef</font> F77_CHAR
F77_UL <font color='#5555FF'>=</font> <font color='#BB00BB'>C2F_CHAR</font><font face='Lucida Console'>(</font><font color='#5555FF'>&amp;</font>UL<font face='Lucida Console'>)</font>;
<font color='#0000FF'>#endif</font>
<font color='#BB00BB'>F77_chpr2</font><font face='Lucida Console'>(</font>F77_UL, <font color='#5555FF'>&amp;</font>F77_N, alpha, X, <font color='#5555FF'>&amp;</font>F77_incX, Y, <font color='#5555FF'>&amp;</font>F77_incY, Ap<font face='Lucida Console'>)</font>;
<b>}</b> <font color='#0000FF'>else</font> <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>order <font color='#5555FF'>=</font><font color='#5555FF'>=</font> CblasRowMajor<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>Uplo <font color='#5555FF'>=</font><font color='#5555FF'>=</font> CblasUpper<font face='Lucida Console'>)</font> UL <font color='#5555FF'>=</font> '<font color='#FF0000'>L</font>';
<font color='#0000FF'>else</font> <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>Uplo <font color='#5555FF'>=</font><font color='#5555FF'>=</font> CblasLower<font face='Lucida Console'>)</font> UL <font color='#5555FF'>=</font> '<font color='#FF0000'>U</font>';
<font color='#0000FF'>else</font>
<b>{</b>
<font color='#BB00BB'>cblas_xerbla</font><font face='Lucida Console'>(</font><font color='#979000'>2</font>, "<font color='#CC0000'>cblas_chpr2</font>","<font color='#CC0000'>Illegal Uplo setting, %d\n</font>", Uplo<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font>;
<b>}</b>
<font color='#0000FF'>#ifdef</font> F77_CHAR
F77_UL <font color='#5555FF'>=</font> <font color='#BB00BB'>C2F_CHAR</font><font face='Lucida Console'>(</font><font color='#5555FF'>&amp;</font>UL<font face='Lucida Console'>)</font>;
<font color='#0000FF'>#endif</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>N <font color='#5555FF'>&gt;</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
<b>{</b>
n <font color='#5555FF'>=</font> N <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#979000'>1</font>;
x <font color='#5555FF'>=</font> <font color='#BB00BB'>malloc</font><font face='Lucida Console'>(</font>n<font color='#5555FF'>*</font><font color='#0000FF'>sizeof</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>float</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
y <font color='#5555FF'>=</font> <font color='#BB00BB'>malloc</font><font face='Lucida Console'>(</font>n<font color='#5555FF'>*</font><font color='#0000FF'>sizeof</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>float</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
tx <font color='#5555FF'>=</font> x;
ty <font color='#5555FF'>=</font> y;
<font color='#0000FF'>if</font><font face='Lucida Console'>(</font> incX <font color='#5555FF'>&gt;</font> <font color='#979000'>0</font> <font face='Lucida Console'>)</font> <b>{</b>
i <font color='#5555FF'>=</font> incX <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#979000'>1</font> ;
tincx <font color='#5555FF'>=</font> <font color='#979000'>2</font>;
stx<font color='#5555FF'>=</font> x<font color='#5555FF'>+</font>n;
<b>}</b> <font color='#0000FF'>else</font> <b>{</b>
i <font color='#5555FF'>=</font> incX <font color='#5555FF'>*</font><font face='Lucida Console'>(</font><font color='#5555FF'>-</font><font color='#979000'>2</font><font face='Lucida Console'>)</font>;
tincx <font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>2</font>;
stx <font color='#5555FF'>=</font> x<font color='#5555FF'>-</font><font color='#979000'>2</font>;
x <font color='#5555FF'>+</font><font color='#5555FF'>=</font><font face='Lucida Console'>(</font>n<font color='#5555FF'>-</font><font color='#979000'>2</font><font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>if</font><font face='Lucida Console'>(</font> incY <font color='#5555FF'>&gt;</font> <font color='#979000'>0</font> <font face='Lucida Console'>)</font> <b>{</b>
j <font color='#5555FF'>=</font> incY <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#979000'>1</font>;
tincy <font color='#5555FF'>=</font> <font color='#979000'>2</font>;
sty<font color='#5555FF'>=</font> y<font color='#5555FF'>+</font>n;
<b>}</b> <font color='#0000FF'>else</font> <b>{</b>
j <font color='#5555FF'>=</font> incY <font color='#5555FF'>*</font><font face='Lucida Console'>(</font><font color='#5555FF'>-</font><font color='#979000'>2</font><font face='Lucida Console'>)</font>;
tincy <font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>2</font>;
sty <font color='#5555FF'>=</font> y<font color='#5555FF'>-</font><font color='#979000'>2</font>;
y <font color='#5555FF'>+</font><font color='#5555FF'>=</font><font face='Lucida Console'>(</font>n<font color='#5555FF'>-</font><font color='#979000'>2</font><font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>do</font>
<b>{</b>
<font color='#5555FF'>*</font>x <font color='#5555FF'>=</font> <font color='#5555FF'>*</font>xx;
x[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font color='#5555FF'>-</font>xx[<font color='#979000'>1</font>];
x <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tincx ;
xx <font color='#5555FF'>+</font><font color='#5555FF'>=</font> i;
<b>}</b>
<font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>x <font color='#5555FF'>!</font><font color='#5555FF'>=</font> stx<font face='Lucida Console'>)</font>;
<font color='#0000FF'>do</font>
<b>{</b>
<font color='#5555FF'>*</font>y <font color='#5555FF'>=</font> <font color='#5555FF'>*</font>yy;
y[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font color='#5555FF'>-</font>yy[<font color='#979000'>1</font>];
y <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tincy ;
yy <font color='#5555FF'>+</font><font color='#5555FF'>=</font> j;
<b>}</b>
<font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>y <font color='#5555FF'>!</font><font color='#5555FF'>=</font> sty<font face='Lucida Console'>)</font>;
x<font color='#5555FF'>=</font>tx;
y<font color='#5555FF'>=</font>ty;
<font color='#0000FF'>#ifdef</font> F77_INT
F77_incX <font color='#5555FF'>=</font> <font color='#979000'>1</font>;
F77_incY <font color='#5555FF'>=</font> <font color='#979000'>1</font>;
<font color='#0000FF'>#else</font>
incx <font color='#5555FF'>=</font> <font color='#979000'>1</font>;
incy <font color='#5555FF'>=</font> <font color='#979000'>1</font>;
<font color='#0000FF'>#endif</font>
<b>}</b> <font color='#0000FF'>else</font>
<b>{</b>
x <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>float</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> X;
y <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> Y;
<b>}</b>
<font color='#BB00BB'>F77_chpr2</font><font face='Lucida Console'>(</font>F77_UL, <font color='#5555FF'>&amp;</font>F77_N, alpha, y, <font color='#5555FF'>&amp;</font>F77_incY, x, <font color='#5555FF'>&amp;</font>F77_incX, Ap<font face='Lucida Console'>)</font>;
<b>}</b> <font color='#0000FF'>else</font>
<b>{</b>
<font color='#BB00BB'>cblas_xerbla</font><font face='Lucida Console'>(</font><font color='#979000'>1</font>, "<font color='#CC0000'>cblas_chpr2</font>","<font color='#CC0000'>Illegal Order setting, %d\n</font>", order<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font>;
<b>}</b>
<font color='#0000FF'>if</font><font face='Lucida Console'>(</font>X<font color='#5555FF'>!</font><font color='#5555FF'>=</font>x<font face='Lucida Console'>)</font>
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>x<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font><font face='Lucida Console'>(</font>Y<font color='#5555FF'>!</font><font color='#5555FF'>=</font>y<font face='Lucida Console'>)</font>
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>y<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font>;
<b>}</b>
</pre></body></html>