1 files changed, 115 insertions, 0 deletions
diff --git a/CBLAS/src/cblas_zhpr.c b/CBLAS/src/cblas_zhpr.c
new file mode 100644
index 00000000..4037b7bf
--- /dev/null
+++ b/CBLAS/src/cblas_zhpr.c
@@ -0,0 +1,115 @@
+/*
+ * cblas_zhpr.c
+ * The program is a C interface to zhpr.
+ * 
+ * Keita Teranishi  3/23/98
+ *
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include "cblas.h"
+#include "cblas_f77.h"
+void cblas_zhpr(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo,
+                const int N, const double alpha, const void *X,
+                const int incX, void *A)
+{
+   char UL;
+#ifdef F77_CHAR
+   F77_CHAR F77_UL;
+#else
+   #define F77_UL &UL
+#endif
+
+#ifdef F77_INT
+   F77_INT F77_N=N, F77_incX=incX;
+#else
+   #define F77_N N
+   #define F77_incX incx
+#endif
+   int n, i, tincx, incx=incX;
+   double *x=(double *)X, *xx=(double *)X, *tx, *st;
+
+   extern int CBLAS_CallFromC;
+   extern int RowMajorStrg;
+   RowMajorStrg = 0;
+ 
+   CBLAS_CallFromC = 1;
+   if (layout == CblasColMajor)
+   {
+      if (Uplo == CblasLower) UL = 'L';
+      else if (Uplo == CblasUpper) UL = 'U';
+      else 
+      {
+         cblas_xerbla(2, "cblas_zhpr","Illegal Uplo setting, %d\n",Uplo );
+         CBLAS_CallFromC = 0;
+         RowMajorStrg = 0;
+         return;
+      }
+      #ifdef F77_CHAR
+         F77_UL = C2F_CHAR(&UL);
+      #endif
+
+      F77_zhpr(F77_UL, &F77_N, &alpha, X, &F77_incX, A);
+
+   }  else if (layout == CblasRowMajor)
+   {
+      RowMajorStrg = 1;
+      if (Uplo == CblasUpper) UL = 'L';
+      else if (Uplo == CblasLower) UL = 'U';
+      else 
+      {
+         cblas_xerbla(2, "cblas_zhpr","Illegal Uplo setting, %d\n", Uplo);
+         CBLAS_CallFromC = 0;
+         RowMajorStrg = 0;
+         return;
+      }
+      #ifdef F77_CHAR
+         F77_UL = C2F_CHAR(&UL);
+      #endif
+      if (N > 0)
+      {
+         n = N << 1;
+         x = malloc(n*sizeof(double));
+         tx = x;
+         if( incX > 0 ) {
+            i = incX << 1;
+            tincx = 2;
+            st= x+n;
+         } else { 
+            i = incX *(-2);
+            tincx = -2;
+            st = x-2; 
+            x +=(n-2); 
+         }
+         do
+         {
+            *x = *xx;
+            x[1] = -xx[1];
+            x += tincx ;
+            xx += i;
+         }
+         while (x != st);
+         x=tx;
+         #ifdef F77_INT
+            F77_incX = 1;
+         #else
+            incx = 1;
+         #endif
+      }
+      else x = (double *) X;
+
+      F77_zhpr(F77_UL, &F77_N, &alpha, x, &F77_incX, A);
+
+   } else 
+   {
+      cblas_xerbla(1, "cblas_zhpr","Illegal layout setting, %d\n", layout);
+      CBLAS_CallFromC = 0;
+      RowMajorStrg = 0;
+      return;
+   }
+   if(X!=x)
+     free(x);
+   CBLAS_CallFromC = 0;
+   RowMajorStrg = 0;
+   return;
+}