1 files changed, 108 insertions, 0 deletions
diff --git a/gsl-1.9/histogram/calloc_range.c b/gsl-1.9/histogram/calloc_range.c
new file mode 100644
index 0000000..cb6e346
--- /dev/null
+++ b/gsl-1.9/histogram/calloc_range.c
@@ -0,0 +1,108 @@
+/* gsl_histogram_calloc_range.c
+ * Copyright (C) 2000  Simone Piccardi
+ *
+ * This library 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 library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+/***************************************************************
+ *
+ * File gsl_histogram_calloc_range.c: 
+ * Routine to create a variable binning histogram providing 
+ * an input range vector. Need GSL library and header.
+ * Do range check and allocate the histogram data. 
+ *
+ * Author: S. Piccardi
+ * Jan. 2000
+ *
+ ***************************************************************/
+#include <config.h>
+#include <stdlib.h>
+#include <gsl/gsl_errno.h>
+#include <gsl/gsl_histogram.h>
+
+gsl_histogram *
+gsl_histogram_calloc_range (size_t n, double *range)
+{
+  size_t i;
+  gsl_histogram *h;
+
+  /* check arguments */
+
+  if (n == 0)
+    {
+      GSL_ERROR_VAL ("histogram length n must be positive integer",
+                        GSL_EDOM, 0);
+    }
+
+  /* check ranges */
+
+  for (i = 0; i < n; i++)
+    {
+      if (range[i] >= range[i + 1])
+        {
+          GSL_ERROR_VAL ("histogram bin extremes  must be "
+                            "in increasing order", GSL_EDOM, 0);
+        }
+    }
+
+  /* Allocate histogram  */
+
+  h = (gsl_histogram *) malloc (sizeof (gsl_histogram));
+
+  if (h == 0)
+    {
+      GSL_ERROR_VAL ("failed to allocate space for histogram struct",
+                        GSL_ENOMEM, 0);
+    }
+
+  h->range = (double *) malloc ((n + 1) * sizeof (double));
+
+  if (h->range == 0)
+    {
+      /* exception in constructor, avoid memory leak */
+      free (h);
+      GSL_ERROR_VAL ("failed to allocate space for histogram ranges",
+                        GSL_ENOMEM, 0);
+    }
+
+  h->bin = (double *) malloc (n * sizeof (double));
+
+  if (h->bin == 0)
+    {
+      /* exception in constructor, avoid memory leak */
+      free (h->range);
+      free (h);
+      GSL_ERROR_VAL ("failed to allocate space for histogram bins",
+                        GSL_ENOMEM, 0);
+    }
+
+  /* initialize ranges */
+
+  for (i = 0; i <= n; i++)
+    {
+      h->range[i] = range[i];
+    }
+
+  /* clear contents */
+
+  for (i = 0; i < n; i++)
+    {
+      h->bin[i] = 0;
+    }
+
+  h->n = n;
+
+  return h;
+}