1 files changed, 155 insertions, 0 deletions
diff --git a/ml/dlib/dlib/external/cblas/cblas_zgbmv.c b/ml/dlib/dlib/external/cblas/cblas_zgbmv.c
new file mode 100644
index 00000000..e5b92242
--- /dev/null
+++ b/ml/dlib/dlib/external/cblas/cblas_zgbmv.c
@@ -0,0 +1,155 @@
+/*
+ * cblas_zgbmv.c
+ * The program is a C interface of zgbmv
+ * 
+ * Keita Teranishi  5/20/98
+ *
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include "cblas.h"
+#include "cblas_f77.h"
+void cblas_zgbmv(const enum CBLAS_ORDER order,
+                 const enum CBLAS_TRANSPOSE TransA, const int M, const int N,
+                 const int KL, const int KU,
+                 const void *alpha, const void  *A, const int lda,
+                 const void  *X, const int incX, const void *beta,
+                 void  *Y, const int incY)
+{
+   char TA;
+#ifdef F77_CHAR
+   F77_CHAR F77_TA;
+#else
+   #define F77_TA &TA   
+#endif
+#ifdef F77_INT
+   F77_INT F77_M=M, F77_N=N, F77_lda=lda, F77_incX=incX, F77_incY=incY;
+   F77_INT F77_KL=KL,F77_KU=KU;
+#else
+   #define F77_M M
+   #define F77_N N
+   #define F77_lda lda
+   #define F77_KL KL
+   #define F77_KU KU
+   #define F77_incX incx
+   #define F77_incY incY
+#endif
+   int n, i=0, incx=incX;
+   const double *xx= (double *)X, *alp= (double *)alpha, *bet = (double *)beta;
+   double ALPHA[2],BETA[2];
+   int tincY, tincx;
+   double *x=(double *)X, *y=(double *)Y, *st=0, *tx;
+
+   if (order == CblasColMajor)
+   {
+      if (TransA == CblasNoTrans) TA = 'N';
+      else if (TransA == CblasTrans) TA = 'T';
+      else if (TransA == CblasConjTrans) TA = 'C';
+      else 
+      {
+         cblas_xerbla(2, "cblas_zgbmv","Illegal TransA setting, %d\n", TransA);
+         return;
+      }
+      #ifdef F77_CHAR
+         F77_TA = C2F_CHAR(&TA);
+      #endif
+      F77_zgbmv(F77_TA, &F77_M, &F77_N, &F77_KL, &F77_KU, alpha,  
+                     A, &F77_lda, X, &F77_incX, beta, Y, &F77_incY);
+   }
+   else if (order == CblasRowMajor)
+   {
+      if (TransA == CblasNoTrans) TA = 'T';
+      else if (TransA == CblasTrans) TA = 'N';
+      else if (TransA == CblasConjTrans)
+      {
+         ALPHA[0]= *alp;
+         ALPHA[1]= -alp[1];
+         BETA[0]= *bet;
+         BETA[1]= -bet[1];
+         TA = 'N';
+         if (M > 0)
+         {
+            n = M << 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
+
+            if( incY > 0 )
+              tincY = incY;
+            else
+              tincY = -incY;
+
+            y++;
+ 
+            if (N > 0)
+            {
+               i = tincY << 1;
+               n = i * N ;
+               st = y + n;
+               do {
+                  *y = -(*y);
+                  y += i;
+               } while(y != st);
+               y -= n;
+            }
+         }
+         else x = (double *) X;
+
+ 
+      }
+      else 
+      {
+         cblas_xerbla(2, "cblas_zgbmv","Illegal TransA setting, %d\n", TransA);
+         return;
+      }
+      #ifdef F77_CHAR
+         F77_TA = C2F_CHAR(&TA);
+      #endif
+      if (TransA == CblasConjTrans)
+         F77_zgbmv(F77_TA, &F77_N, &F77_M, &F77_KU, &F77_KL, ALPHA, 
+                        A ,&F77_lda, x,&F77_incX, BETA, Y, &F77_incY);
+      else
+         F77_zgbmv(F77_TA, &F77_N, &F77_M, &F77_KU, &F77_KL, alpha, 
+                        A ,&F77_lda, x,&F77_incX, beta, Y, &F77_incY);
+      if (TransA == CblasConjTrans)
+      {
+         if (x != X) free(x);
+         if (N > 0)
+         {
+            do
+            {
+               *y = -(*y);
+               y += i;
+            }
+            while (y != st);
+         }
+      }
+   }
+   else cblas_xerbla(1, "cblas_zgbmv", "Illegal Order setting, %d\n", order);
+   return;
+}