openswmm::toposort Namespace Reference

Functions
int	sortLinks (const int *node1, const int *node2, int n_links, int n_nodes, std::vector< int > &sorted_links)
	Sort links in topological (upstream→downstream) order.

Function Documentation

sortLinks()

int openswmm::toposort::sortLinks	(	const int *	node1,
		const int *	node2,
		int	n_links,
		int	n_nodes,
		std::vector< int > &	sorted_links
	)

Sort links in topological (upstream→downstream) order.

Uses Kahn's algorithm with CSR adjacency from node1/node2. Returns the number of sorted links. If < n_links, a cycle exists.

Parameters

node1	[in] Upstream node index per link.
node2	[in] Downstream node index per link.
n_links	Number of links.
n_nodes	Number of nodes.
sorted_links	[out] Topologically sorted link indices.

Returns

Number of sorted links (< n_links indicates cycle).