TryPush trait to enable non-reallocating pushes #54
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Add a
TryPush
trait that only pushes an item if the region can absorb it without reallocation. This is important for example for pre-sized regions based on some allocation patterns.The trait offers a
try_push
function that either returns an index if successful or the item itself if it failed to push it. Additionally, acan_push
function takes a reference to the item, and returns a boolean that's true when the region can absorb the item without reallocation.