1 files changed, 91 insertions, 0 deletions
diff --git a/gsl-1.9/combination/gsl_combination.h b/gsl-1.9/combination/gsl_combination.h
new file mode 100644
index 0000000..ece1b72
--- /dev/null
+++ b/gsl-1.9/combination/gsl_combination.h
@@ -0,0 +1,91 @@
+/* combination/gsl_combination.h
+ * based on permutation/gsl_permutation.h by Brian Gough
+ * 
+ * Copyright (C) 2001 Szymon Jaroszewicz
+ * 
+ * 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.
+ */
+
+#ifndef __GSL_COMBINATION_H__
+#define __GSL_COMBINATION_H__
+
+#include <stdlib.h>
+#include <gsl/gsl_errno.h>
+#include <gsl/gsl_types.h>
+#include <gsl/gsl_check_range.h>
+
+#undef __BEGIN_DECLS
+#undef __END_DECLS
+#ifdef __cplusplus
+# define __BEGIN_DECLS extern "C" {
+# define __END_DECLS }
+#else
+# define __BEGIN_DECLS /* empty */
+# define __END_DECLS /* empty */
+#endif
+
+__BEGIN_DECLS
+
+struct gsl_combination_struct
+{
+  size_t n;
+  size_t k;
+  size_t *data;
+};
+
+typedef struct gsl_combination_struct gsl_combination;
+
+gsl_combination *gsl_combination_alloc (const size_t n, const size_t k);
+gsl_combination *gsl_combination_calloc (const size_t n, const size_t k);
+void gsl_combination_init_first (gsl_combination * c);
+void gsl_combination_init_last (gsl_combination * c);
+void gsl_combination_free (gsl_combination * c);
+int gsl_combination_memcpy (gsl_combination * dest, const gsl_combination * src); 
+
+int gsl_combination_fread (FILE * stream, gsl_combination * c);
+int gsl_combination_fwrite (FILE * stream, const gsl_combination * c);
+int gsl_combination_fscanf (FILE * stream, gsl_combination * c);
+int gsl_combination_fprintf (FILE * stream, const gsl_combination * c, const char *format);
+
+size_t gsl_combination_n (const gsl_combination * c);
+size_t gsl_combination_k (const gsl_combination * c);
+size_t * gsl_combination_data (const gsl_combination * c);
+
+size_t gsl_combination_get (const gsl_combination * c, const size_t i);
+
+int gsl_combination_valid (gsl_combination * c);
+int gsl_combination_next (gsl_combination * c);
+int gsl_combination_prev (gsl_combination * c);
+
+#ifdef HAVE_INLINE
+
+extern inline
+size_t
+gsl_combination_get (const gsl_combination * c, const size_t i)
+{
+#if GSL_RANGE_CHECK
+  if (i >= c->k)
+    {
+      GSL_ERROR_VAL ("index out of range", GSL_EINVAL, 0);
+    }
+#endif
+  return c->data[i];
+}
+
+#endif /* HAVE_INLINE */
+
+__END_DECLS
+
+#endif /* __GSL_COMBINATION_H__ */