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/*
* 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 enum CBLAS_ORDER order, 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;
mcblas_fix_info=cblas_fix_info;
if (order == CblasColMajor)
{
F77_zgerc( &F77_M, &F77_N, alpha, X, &F77_incX, Y, &F77_incY, A,
&F77_lda);
} else if (order == 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 Order setting, %d\n", order);
mcblas_fix_info = NULL;
RowMajorStrg = 0;
return;
}
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