rr_graph_util.h

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struct s_linked_edge {
    int edge;
    short iswitch;
    struct s_linked_edge *next;
};
typedef struct s_linked_edge t_linked_edge;

t_linked_edge *insert_in_edge_list(t_linked_edge * head, int edge,
        short iswitch);

void free_linked_edge_soft(t_linked_edge * edge_ptr,
        t_linked_edge ** free_list_head_ptr);

int seg_index_of_cblock(t_rr_type from_rr_type, int to_node);

int seg_index_of_sblock(int from_node, int to_node);