1 files changed, 127 insertions, 0 deletions
diff --git a/gsl-1.9/qrng/qrng.c b/gsl-1.9/qrng/qrng.c
new file mode 100644
index 0000000..d85eccf
--- /dev/null
+++ b/gsl-1.9/qrng/qrng.c
@@ -0,0 +1,127 @@
+/* Author: G. Jungman
+ */
+#include <config.h>
+#include <stdlib.h>
+#include <string.h>
+#include <gsl/gsl_errno.h>
+#include <gsl/gsl_qrng.h>
+
+
+gsl_qrng *
+gsl_qrng_alloc (const gsl_qrng_type * T, unsigned int dimension)
+{
+
+  gsl_qrng * q = (gsl_qrng *) malloc (sizeof (gsl_qrng));
+
+  if (q == 0)
+    {
+      GSL_ERROR_VAL ("allocation failed for qrng struct",
+                        GSL_ENOMEM, 0);
+    };
+
+  q->dimension = dimension;
+  q->state_size = T->state_size(dimension);
+  q->state = malloc (q->state_size);
+
+  if (q->state == 0)
+    {
+      free (q);
+      GSL_ERROR_VAL ("allocation failed for qrng state",
+                        GSL_ENOMEM, 0);
+    };
+
+  q->type = T;
+
+  T->init_state(q->state, q->dimension);
+
+  return q;
+}
+
+void
+gsl_qrng_init (gsl_qrng * q)
+{
+  (q->type->init_state) (q->state, q->dimension);
+}
+
+int
+gsl_qrng_memcpy (gsl_qrng * dest, const gsl_qrng * src)
+{
+  if (dest->type != src->type)
+    {
+      GSL_ERROR ("generators must be of the same type", GSL_EINVAL);
+    }
+
+  dest->dimension = src->dimension;
+  dest->state_size = src->state_size;
+  memcpy (dest->state, src->state, src->state_size);
+
+  return GSL_SUCCESS;
+}
+
+
+gsl_qrng *
+gsl_qrng_clone (const gsl_qrng * q)
+{
+  gsl_qrng * r = (gsl_qrng *) malloc (sizeof (gsl_qrng));
+
+  if (r == 0)
+    {
+      GSL_ERROR_VAL ("failed to allocate space for rng struct",
+                        GSL_ENOMEM, 0);
+    };
+
+  r->dimension = q->dimension;
+  r->state_size = q->state_size;
+  r->state = malloc (r->state_size);
+
+  if (r->state == 0)
+    {
+      free (r);
+      GSL_ERROR_VAL ("failed to allocate space for rng state",
+                        GSL_ENOMEM, 0);
+    };
+
+  r->type = q->type;
+
+  memcpy (r->state, q->state, q->state_size);
+
+  return r;
+}
+
+#ifndef HIDE_INLINE_STATIC
+int
+gsl_qrng_get (const gsl_qrng * q, double x[])
+{
+  return (q->type->get) (q->state, q->dimension, x);
+}
+#endif
+
+const char *
+gsl_qrng_name (const gsl_qrng * q)
+{
+  return q->type->name;
+}
+
+
+size_t
+gsl_qrng_size (const gsl_qrng * q)
+{
+  return q->state_size;
+}
+
+
+void *
+gsl_qrng_state (const gsl_qrng * q)
+{
+  return q->state;
+}
+
+
+void
+gsl_qrng_free (gsl_qrng * q)
+{
+  if(q != 0) {
+    if(q->state != 0) free (q->state);
+    free (q);
+  }
+}