Add CBLAS library.

Change-Id: I6d5c0ea5eb350f1d35637d8963a78811a4e015d8

1 files changed, 109 insertions, 0 deletions

diff --git a/src/cblas_dsyr2k.c b/src/cblas_dsyr2k.c
new file mode 100644
index 0000000..e50dc11
--- /dev/null
+++ b/src/cblas_dsyr2k.c
@@ -0,0 +1,109 @@
+/*
+ *
+ * cblas_dsyr2k.c
+ * This program is a C interface to dsyr2k.
+ * Written by Keita Teranishi
+ * 4/6/1998
+ *
+ */
+
+#include "cblas.h"
+#include "cblas_f77.h"
+void cblas_dsyr2k(const enum CBLAS_ORDER Order, const enum CBLAS_UPLO Uplo,
+                  const enum CBLAS_TRANSPOSE Trans, const int N, const int K,
+                  const double alpha, const double  *A, const int lda,
+                  const double  *B, const int ldb, const double beta,
+                  double  *C, const int ldc)
+{
+   char UL, TR;   
+#ifdef F77_CHAR
+   F77_CHAR F77_TA, F77_UL;
+#else
+   #define F77_TR &TR  
+   #define F77_UL &UL  
+#endif
+
+#ifdef F77_INT
+   F77_INT F77_N=N, F77_K=K, F77_lda=lda, F77_ldb=ldb;
+   F77_INT F77_ldc=ldc;
+#else
+   #define F77_N N
+   #define F77_K K
+   #define F77_lda lda
+   #define F77_ldb ldb
+   #define F77_ldc ldc
+#endif
+
+   extern int CBLAS_CallFromC;
+   extern int RowMajorStrg;
+   RowMajorStrg = 0;
+   CBLAS_CallFromC = 1;
+
+   if( Order == CblasColMajor )
+   {
+
+      if( Uplo == CblasUpper) UL='U';
+      else if ( Uplo == CblasLower ) UL='L';
+      else 
+      {
+         cblas_xerbla(2, "cblas_dsyr2k","Illegal Uplo setting, %d\n", Uplo);
+         CBLAS_CallFromC = 0;
+         RowMajorStrg = 0;
+         return;
+      }
+
+      if( Trans == CblasTrans) TR ='T';
+      else if ( Trans == CblasConjTrans ) TR='C';
+      else if ( Trans == CblasNoTrans )   TR='N';
+      else 
+      {
+         cblas_xerbla(3, "cblas_dsyr2k","Illegal Trans setting, %d\n", Trans);
+         CBLAS_CallFromC = 0;
+         RowMajorStrg = 0;
+         return;
+      }
+
+
+      #ifdef F77_CHAR
+         F77_UL = C2F_CHAR(&UL);
+         F77_TR = C2F_CHAR(&TR);
+      #endif
+
+      F77_dsyr2k(F77_UL, F77_TR, &F77_N, &F77_K, &alpha, A, &F77_lda,
+                      B, &F77_ldb, &beta, C, &F77_ldc);
+   } else if (Order == CblasRowMajor)
+   {
+      RowMajorStrg = 1;
+      if( Uplo == CblasUpper) UL='L';
+      else if ( Uplo == CblasLower ) UL='U';
+      else 
+      {
+         cblas_xerbla(3, "cblas_dsyr2k","Illegal Uplo setting, %d\n", Uplo);
+         CBLAS_CallFromC = 0;
+         RowMajorStrg = 0;
+         return;
+      }
+      if( Trans == CblasTrans) TR ='N';
+      else if ( Trans == CblasConjTrans ) TR='N';
+      else if ( Trans == CblasNoTrans )   TR='T';
+      else 
+      {
+         cblas_xerbla(3, "cblas_dsyr2k","Illegal Trans setting, %d\n", Trans);
+         CBLAS_CallFromC = 0;
+         RowMajorStrg = 0;
+         return;
+      }
+
+      #ifdef F77_CHAR
+         F77_UL = C2F_CHAR(&UL);
+         F77_TR = C2F_CHAR(&TR);
+      #endif
+
+      F77_dsyr2k(F77_UL, F77_TR, &F77_N, &F77_K, &alpha, A, &F77_lda, B, 
+                &F77_ldb, &beta, C, &F77_ldc);
+   } 
+   else cblas_xerbla(1, "cblas_dsyr2k","Illegal Order setting, %d\n", Order);
+   CBLAS_CallFromC = 0;
+   RowMajorStrg = 0;
+   return;
+}