85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
/*
|
|
* cblas_zgerc.c
|
|
* The program is a C interface to zgerc.
|
|
*
|
|
* Keita Teranishi 5/20/98
|
|
*
|
|
*/
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include "cblas.h"
|
|
#include "cblas_f77.h"
|
|
void cblas_zgerc(const CBLAS_LAYOUT layout, const int M, const int N,
|
|
const void *alpha, const void *X, const int incX,
|
|
const void *Y, const int incY, void *A, const int lda)
|
|
{
|
|
#ifdef F77_INT
|
|
F77_INT F77_M=M, F77_N=N, F77_lda=lda, F77_incX=incX, F77_incY=incY;
|
|
#else
|
|
#define F77_M M
|
|
#define F77_N N
|
|
#define F77_incX incX
|
|
#define F77_incY incy
|
|
#define F77_lda lda
|
|
#endif
|
|
|
|
int n, i, tincy, incy=incY;
|
|
double *y=(double *)Y, *yy=(double *)Y, *ty, *st;
|
|
|
|
extern int CBLAS_CallFromC;
|
|
extern int RowMajorStrg;
|
|
RowMajorStrg = 0;
|
|
|
|
CBLAS_CallFromC = 1;
|
|
if (layout == CblasColMajor)
|
|
{
|
|
F77_zgerc( &F77_M, &F77_N, alpha, X, &F77_incX, Y, &F77_incY, A,
|
|
&F77_lda);
|
|
} else if (layout == CblasRowMajor)
|
|
{
|
|
RowMajorStrg = 1;
|
|
if (N > 0)
|
|
{
|
|
n = N << 1;
|
|
y = malloc(n*sizeof(double));
|
|
|
|
ty = y;
|
|
if( incY > 0 ) {
|
|
i = incY << 1;
|
|
tincy = 2;
|
|
st= y+n;
|
|
} else {
|
|
i = incY *(-2);
|
|
tincy = -2;
|
|
st = y-2;
|
|
y +=(n-2);
|
|
}
|
|
do
|
|
{
|
|
*y = *yy;
|
|
y[1] = -yy[1];
|
|
y += tincy ;
|
|
yy += i;
|
|
}
|
|
while (y != st);
|
|
y = ty;
|
|
|
|
#ifdef F77_INT
|
|
F77_incY = 1;
|
|
#else
|
|
incy = 1;
|
|
#endif
|
|
}
|
|
else y = (double *) Y;
|
|
|
|
F77_zgeru( &F77_N, &F77_M, alpha, y, &F77_incY, X, &F77_incX, A,
|
|
&F77_lda);
|
|
if(Y!=y)
|
|
free(y);
|
|
|
|
} else cblas_xerbla(1, "cblas_zgerc", "Illegal layout setting, %d\n", layout);
|
|
CBLAS_CallFromC = 0;
|
|
RowMajorStrg = 0;
|
|
return;
|
|
}
|