asc26 amss-ncku initialized

AMSS_NCKU_source/horizon_sequence.C

@@ -0,0 +1,76 @@
+#include <stdio.h>
+#include <assert.h>
+
+#include "stdc.h"
+#include "util.h"
+
+#include "horizon_sequence.h"
+
+namespace AHFinderDirect
+{
+
+	horizon_sequence::horizon_sequence(int N_horizons_in)
+		: N_horizons_(N_horizons_in),
+		  my_N_horizons_(0), // sequence starts out empty
+		  posn_(-1),
+		  my_hn_(new int[N_horizons_in])
+	{
+	}
+
+	horizon_sequence::~horizon_sequence()
+	{
+		delete[] my_hn_;
+	}
+	//
+	// This function appends  hn  to the sequence.  It returns the new value
+	// of my_N_horizons().
+	//
+	int horizon_sequence::append_hn(int hn)
+	{
+		assert(hn > 0);						  // can only append genuine horizons
+		assert(my_N_horizons_ < N_horizons_); // make sure there's space for it
+		my_hn_[my_N_horizons_++] = hn;
+		posn_ = 0;
+		return my_N_horizons_;
+	}
+
+	//******************************************************************************
+
+	//
+	// This function computes the internal position immediately following
+	// a given internal position in the sequence.
+	//
+	// Arguments:
+	// p = (in) The current internal position, with posn_ semantics
+	//
+	// Results:
+	// This function returns the next internal position after p.
+	//
+	int horizon_sequence::next_posn(int pos)
+		const
+	{
+		return (pos < 0)					? pos - 1
+			   : (pos + 1 < my_N_horizons_) ? pos + 1
+											: -1;
+	}
+
+	//******************************************************************************
+
+	//
+	// This function determines whether or not a given  hn  is genuine.
+	//
+	bool horizon_sequence::is_hn_genuine(int hn)
+		const
+	{
+		for (int pos = 0; pos < my_N_horizons_; ++pos)
+		{
+			if (my_hn_[pos] == hn)
+				then return true;
+		}
+
+		return false;
+	}
+
+	//******************************************************************************
+
+} // namespace AHFinderDirect