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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;
|
| CBLAS_CallFromC = 1;
| 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);
| CBLAS_CallFromC = 0;
| RowMajorStrg = 0;
| return;
| }
|
|
