1 files changed, 98 insertions, 0 deletions
diff --git a/gsl-1.9/cblas/source_gbmv_r.h b/gsl-1.9/cblas/source_gbmv_r.h
new file mode 100644
index 0000000..779512b
--- /dev/null
+++ b/gsl-1.9/cblas/source_gbmv_r.h
@@ -0,0 +1,98 @@
+/* blas/source_gbmv_r.h
+ * 
+ * Copyright (C) 1996, 1997, 1998, 1999, 2000 Gerard Jungman
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+{
+  INDEX i, j;
+  INDEX lenX, lenY, L, U;
+
+  const int Trans = (TransA != CblasConjTrans) ? TransA : CblasTrans;
+
+  if (M == 0 || N == 0)
+    return;
+
+  if (alpha == 0.0 && beta == 1.0)
+    return;
+
+  if (Trans == CblasNoTrans) {
+    lenX = N;
+    lenY = M;
+    L = KL;
+    U = KU;
+  } else {
+    lenX = M;
+    lenY = N;
+    L = KU;
+    U = KL;
+  }
+
+  /* form  y := beta*y */
+  if (beta == 0.0) {
+    INDEX iy = OFFSET(lenY, incY);
+    for (i = 0; i < lenY; i++) {
+      Y[iy] = 0;
+      iy += incY;
+    }
+  } else if (beta != 1.0) {
+    INDEX iy = OFFSET(lenY, incY);
+    for (i = 0; i < lenY; i++) {
+      Y[iy] *= beta;
+      iy += incY;
+    }
+  }
+
+  if (alpha == 0.0)
+    return;
+
+  if ((order == CblasRowMajor && Trans == CblasNoTrans)
+      || (order == CblasColMajor && Trans == CblasTrans)) {
+    /* form  y := alpha*A*x + y */
+    INDEX iy = OFFSET(lenY, incY);
+    for (i = 0; i < lenY; i++) {
+      BASE temp = 0.0;
+      const INDEX j_min = (i > L ? i - L : 0);
+      const INDEX j_max = GSL_MIN(lenX, i + U + 1);
+      INDEX jx = OFFSET(lenX, incX) + j_min * incX;
+      for (j = j_min; j < j_max; j++) {
+        temp += X[jx] * A[(L - i + j) + i * lda];
+        jx += incX;
+      }
+      Y[iy] += alpha * temp;
+      iy += incY;
+    }
+  } else if ((order == CblasRowMajor && Trans == CblasTrans)
+             || (order == CblasColMajor && Trans == CblasNoTrans)) {
+    /* form  y := alpha*A'*x + y */
+    INDEX jx = OFFSET(lenX, incX);
+    for (j = 0; j < lenX; j++) {
+      const BASE temp = alpha * X[jx];
+      if (temp != 0.0) {
+        const INDEX i_min = (j > U ? j - U : 0);
+        const INDEX i_max = GSL_MIN(lenY, j + L + 1);
+        INDEX iy = OFFSET(lenY, incY) + i_min * incY;
+        for (i = i_min; i < i_max; i++) {
+          Y[iy] += temp * A[lda * j + (U + i - j)];
+          iy += incY;
+        }
+      }
+      jx += incX;
+    }
+  } else {
+    BLAS_ERROR("unrecognized operation");
+  }
+}