1 files changed, 50 insertions, 0 deletions
diff --git a/gsl-1.9/cblas/source_axpy_r.h b/gsl-1.9/cblas/source_axpy_r.h
new file mode 100644
index 0000000..8e38448
--- /dev/null
+++ b/gsl-1.9/cblas/source_axpy_r.h
@@ -0,0 +1,50 @@
+/* blas/source_axpy_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;
+
+  if (alpha == 0.0) {
+    return;
+  }
+
+  if (incX == 1 && incY == 1) {
+    const INDEX m = N % 4;
+
+    for (i = 0; i < m; i++) {
+      Y[i] += alpha * X[i];
+    }
+
+    for (i = m; i + 3 < N; i += 4) {
+      Y[i] += alpha * X[i];
+      Y[i + 1] += alpha * X[i + 1];
+      Y[i + 2] += alpha * X[i + 2];
+      Y[i + 3] += alpha * X[i + 3];
+    }
+  } else {
+    INDEX ix = OFFSET(N, incX);
+    INDEX iy = OFFSET(N, incY);
+
+    for (i = 0; i < N; i++) {
+      Y[iy] += alpha * X[ix];
+      ix += incX;
+      iy += incY;
+    }
+  }
+}