Minimum Priority Value

Returns the current minimum priority scalar in the queue.

Usage

min_priority(x)

Arguments

x

A priority_queue.

Value

Minimum priority value, or NULL when x is empty.

Details

Uses cached .pq_min monoid state.

Examples

q <- priority_queue("a", "b", priorities = c(2, 1))
min_priority(q)
#> [1] 1
min_priority(priority_queue())
#> NULL