OpenBLAS/interface/omatcopy.c

/***************************************************************************
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*****************************************************************************/

/***********************************************************
 * 2014/06/09 Saar
***********************************************************/

#include <stdio.h>
#include <stdlib.h>
#include "common.h"
#ifdef FUNCTION_PROFILE
#include "functable.h"
#endif

#if defined(DOUBLE)
#define ERROR_NAME "DOMATCOPY"
#else
#define ERROR_NAME "SOMATCOPY"
#endif

#define BlasRowMajor 0
#define BlasColMajor 1
#define BlasNoTrans  0
#define BlasTrans    1

#ifndef CBLAS 
void NAME( char* ORDER, char* TRANS, blasint *rows, blasint *cols, FLOAT *alpha, FLOAT *a, blasint *lda, FLOAT *b, blasint *ldb)
{

	char Order, Trans;
	int order=-1,trans=-1;
	blasint info = -1;

	Order = *ORDER;
	Trans = *TRANS;

	TOUPPER(Order);
	TOUPPER(Trans);

	if ( Order == 'C' ) order = BlasColMajor;
	if ( Order == 'R' ) order = BlasRowMajor;
	if ( Trans == 'N' ) trans = BlasNoTrans;
	if ( Trans == 'R' ) trans = BlasNoTrans;
	if ( Trans == 'T' ) trans = BlasTrans;
	if ( Trans == 'C' ) trans = BlasTrans;
#else 
void CNAME(enum CBLAS_ORDER CORDER, enum CBLAS_TRANSPOSE CTRANS, blasint crows, blasint ccols, FLOAT calpha, FLOAT *a, blasint clda, FLOAT *b, blasint cldb)
{
	blasint *rows, *cols, *lda, *ldb; 
	FLOAT   *alpha; 
	int order=-1,trans=-1;
	blasint info = -1;

	if ( CORDER == CblasColMajor ) order = BlasColMajor; 
	if ( CORDER == CblasRowMajor ) order = BlasRowMajor; 

	if ( CTRANS == CblasNoTrans || CTRANS == CblasConjNoTrans ) trans = BlasNoTrans; 
	if ( CTRANS == CblasTrans   || CTRANS == CblasConjTrans   ) trans = BlasTrans; 

	rows = &crows; 
	cols = &ccols; 
	lda  = &clda; 
	ldb  = &cldb; 
	alpha = &calpha; 

#endif
	if ( order == BlasColMajor)
	{
        	if ( trans == BlasNoTrans  &&  *ldb < MAX(1,*rows) ) info = 9;
        	if ( trans == BlasTrans    &&  *ldb < MAX(1,*cols) ) info = 9;
	}
	if ( order == BlasRowMajor)
	{
        	if ( trans == BlasNoTrans  &&  *ldb < MAX(1,*cols) ) info = 9;
        	if ( trans == BlasTrans    &&  *ldb < MAX(1,*rows) ) info = 9;
	}

	if ( order == BlasColMajor &&  *lda < MAX(1,*rows) ) info = 7;
	if ( order == BlasRowMajor &&  *lda < MAX(1,*cols) ) info = 7;
	if ( *cols < 0 ) info = 4;
	if ( *rows < 0 ) info = 3;
	if ( trans < 0 ) info = 2;
	if ( order < 0 ) info = 1;

	if (info >= 0) {
    		BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
    		return;
  	}

	if ((*rows == 0) || (*cols == 0)) return;

	if ( order == BlasColMajor )
	{
		if ( trans == BlasNoTrans )
		{
			OMATCOPY_K_CN(*rows, *cols, *alpha, a, *lda, b, *ldb );
		}
		else
		{
			OMATCOPY_K_CT(*rows, *cols, *alpha, a, *lda, b, *ldb );
		}
	}
	else
	{
		if ( trans == BlasNoTrans )
		{
			OMATCOPY_K_RN(*rows, *cols, *alpha, a, *lda, b, *ldb );
		}
		else
		{
			OMATCOPY_K_RT(*rows, *cols, *alpha, a, *lda, b, *ldb );
		}
	}

	return;

}