1 files changed, 153 insertions, 0 deletions
diff --git a/gsl-1.9/histogram/calloc_range2d.c b/gsl-1.9/histogram/calloc_range2d.c
new file mode 100644
index 0000000..98d0caf
--- /dev/null
+++ b/gsl-1.9/histogram/calloc_range2d.c
@@ -0,0 +1,153 @@
+/* gsl_histogram2d_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_histogram2d_calloc_range.c: 
+ * Routine to create a variable binning 2D histogram providing 
+ * the input range vectors. 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_histogram2d.h>
+/*
+ * Routine that create a 2D histogram using the given 
+ * values for X and Y ranges
+ */
+gsl_histogram2d *
+gsl_histogram2d_calloc_range (size_t nx, size_t ny,
+                              double *xrange,
+                              double *yrange)
+{
+  size_t i, j;
+  gsl_histogram2d *h;
+
+  /* check arguments */
+
+  if (nx == 0)
+    {
+      GSL_ERROR_VAL ("histogram length nx must be positive integer",
+                        GSL_EDOM, 0);
+    }
+
+  if (ny == 0)
+    {
+      GSL_ERROR_VAL ("histogram length ny must be positive integer",
+                        GSL_EDOM, 0);
+    }
+
+  /* init ranges */
+
+  for (i = 0; i < nx; i++)
+    {
+      if (xrange[i] >= xrange[i + 1])
+        {
+          GSL_ERROR_VAL ("histogram xrange not in increasing order",
+                            GSL_EDOM, 0);
+        }
+    }
+
+  for (j = 0; j < ny; j++)
+    {
+      if (yrange[j] >= yrange[j + 1])
+        {
+          GSL_ERROR_VAL ("histogram yrange not in increasing order"
+                            ,GSL_EDOM, 0);
+        }
+    }
+
+  /* Allocate histogram  */
+
+  h = (gsl_histogram2d *) malloc (sizeof (gsl_histogram2d));
+
+  if (h == 0)
+    {
+      GSL_ERROR_VAL ("failed to allocate space for histogram struct",
+                        GSL_ENOMEM, 0);
+    }
+
+  h->xrange = (double *) malloc ((nx + 1) * sizeof (double));
+
+  if (h->xrange == 0)
+    {
+      /* exception in constructor, avoid memory leak */
+      free (h);
+
+      GSL_ERROR_VAL ("failed to allocate space for histogram xrange",
+                        GSL_ENOMEM, 0);
+    }
+
+  h->yrange = (double *) malloc ((ny + 1) * sizeof (double));
+
+  if (h->yrange == 0)
+    {
+      /* exception in constructor, avoid memory leak */
+      free (h);
+
+      GSL_ERROR_VAL ("failed to allocate space for histogram yrange",
+                        GSL_ENOMEM, 0);
+    }
+
+  h->bin = (double *) malloc (nx * ny * sizeof (double));
+
+  if (h->bin == 0)
+    {
+      /* exception in constructor, avoid memory leak */
+      free (h->xrange);
+      free (h->yrange);
+      free (h);
+
+      GSL_ERROR_VAL ("failed to allocate space for histogram bins",
+                        GSL_ENOMEM, 0);
+    }
+
+  /* init histogram */
+
+  /* init ranges */
+
+  for (i = 0; i <= nx; i++)
+    {
+      h->xrange[i] = xrange[i];
+    }
+
+  for (j = 0; j <= ny; j++)
+    {
+      h->yrange[j] = yrange[j];
+    }
+
+  /* clear contents */
+
+  for (i = 0; i < nx; i++)
+    {
+      for (j = 0; j < ny; j++)
+        {
+          h->bin[i * ny + j] = 0;
+        }
+    }
+
+  h->nx = nx;
+  h->ny = ny;
+
+  return h;
+}