1 files changed, 99 insertions, 0 deletions
diff --git a/ml/dlib/dlib/external/cblas/cblas_zher.c b/ml/dlib/dlib/external/cblas/cblas_zher.c
new file mode 100644
index 000000000..30453737c
--- /dev/null
+++ b/ml/dlib/dlib/external/cblas/cblas_zher.c
@@ -0,0 +1,99 @@
+/*
+ * cblas_zher.c
+ * The program is a C interface to zher.
+ * 
+ * Keita Teranishi  5/20/98
+ *
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include "cblas.h"
+#include "cblas_f77.h"
+void cblas_zher(const enum CBLAS_ORDER order, const enum CBLAS_UPLO Uplo,
+                const int N, const double alpha, const void *X, const int incX
+                ,void *A, const int lda)
+{
+   char UL;
+#ifdef F77_CHAR
+   F77_CHAR F77_UL;
+#else
+   #define F77_UL &UL
+#endif
+
+#ifdef F77_INT
+   F77_INT F77_N=N, F77_lda=lda, F77_incX=incX;
+#else
+   #define F77_N N
+   #define F77_lda lda
+   #define F77_incX incx
+#endif
+   int n, i, tincx, incx=incX;
+   double *x=(double *)X, *xx=(double *)X, *tx, *st;
+
+ 
+   if (order == CblasColMajor)
+   {
+      if (Uplo == CblasLower) UL = 'L';
+      else if (Uplo == CblasUpper) UL = 'U';
+      else 
+      {
+         cblas_xerbla(2, "cblas_zher","Illegal Uplo setting, %d\n",Uplo );
+         return;
+      }
+      #ifdef F77_CHAR
+         F77_UL = C2F_CHAR(&UL);
+      #endif
+
+      F77_zher(F77_UL, &F77_N, &alpha, X, &F77_incX, A, &F77_lda);
+
+   }  else if (order == CblasRowMajor)
+   {
+      if (Uplo == CblasUpper) UL = 'L';
+      else if (Uplo == CblasLower) UL = 'U';
+      else 
+      {
+         cblas_xerbla(2, "cblas_zher","Illegal Uplo setting, %d\n", Uplo);
+         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_zher(F77_UL, &F77_N, &alpha, x, &F77_incX, A, &F77_lda);
+   } else cblas_xerbla(1, "cblas_zher", "Illegal Order setting, %d\n", order);
+   if(X!=x) 
+      free(x);
+   
+   return;
+}