1 files changed, 105 insertions, 0 deletions
diff --git a/gsl-1.9/ieee-utils/fp-hpux11.c b/gsl-1.9/ieee-utils/fp-hpux11.c
new file mode 100644
index 0000000..86d0c4c
--- /dev/null
+++ b/gsl-1.9/ieee-utils/fp-hpux11.c
@@ -0,0 +1,105 @@
+/* ieee-utils/fp-hpux11.c
+ * 
+ * Copyright (C) 2001 Brian Gough
+ * 
+ * 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.
+ */
+
+#include <math.h>
+#include <stdio.h>
+#include <fenv.h>
+#include <gsl/gsl_ieee_utils.h>
+#include <gsl/gsl_errno.h>
+
+int
+gsl_ieee_set_mode (int precision, int rounding, int exception_mask)
+{
+  int mode;
+
+  switch (precision)
+    {
+    case GSL_IEEE_SINGLE_PRECISION:
+      GSL_ERROR ("HPUX PA-RISC only supports default precision rounding",
+                 GSL_EUNSUP) ;
+      break ;
+    case GSL_IEEE_DOUBLE_PRECISION:
+      GSL_ERROR ("HPUX PA-RISC only supports default precision rounding",
+                 GSL_EUNSUP) ;
+      break ;
+    case GSL_IEEE_EXTENDED_PRECISION:
+      GSL_ERROR ("HPUX PA-RISC only supports default precision rounding",
+                 GSL_EUNSUP) ;
+      break ;
+    }
+
+
+  switch (rounding)
+    {
+    case GSL_IEEE_ROUND_TO_NEAREST:
+      fesetround (FE_TONEAREST) ;
+      break ;
+    case GSL_IEEE_ROUND_DOWN:
+      fesetround (FE_DOWNWARD) ;
+      break ;
+    case GSL_IEEE_ROUND_UP:
+      fesetround (FE_UPWARD) ;
+      break ;
+    case GSL_IEEE_ROUND_TO_ZERO:
+      fesetround (FE_TOWARDZERO) ;
+      break ;
+    default:
+      fesetround (FE_TONEAREST) ;
+    }
+
+  /* Turn on all the exceptions apart from 'inexact' */
+
+  mode = FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW ;
+
+  if (exception_mask & GSL_IEEE_MASK_INVALID)
+    mode &= ~ FE_INVALID ;
+
+  if (exception_mask & GSL_IEEE_MASK_DENORMALIZED)
+    {
+      /* do nothing */
+    }
+  else
+    {
+      GSL_ERROR ("HP-UX does not support the denormalized operand exception. "
+                 "Use 'mask-denormalized' to work around this.",
+                 GSL_EUNSUP) ;
+    }
+
+  if (exception_mask & GSL_IEEE_MASK_DIVISION_BY_ZERO)
+    mode &= ~ FE_DIVBYZERO ;
+
+  if (exception_mask & GSL_IEEE_MASK_OVERFLOW)
+    mode &= ~ FE_OVERFLOW ;
+
+  if (exception_mask & GSL_IEEE_MASK_UNDERFLOW)
+    mode &=  ~ FE_UNDERFLOW ;
+
+  if (exception_mask & GSL_IEEE_TRAP_INEXACT)
+    {
+      mode |= FE_INEXACT ;
+    }
+  else
+    {
+      mode &= ~ FE_INEXACT ;
+    }
+
+  fesettrapenable (mode) ;
+
+  return GSL_SUCCESS ;
+}