Try to move‐append item to the front without blocking.
Synopsis
Declared in <bdlcc_deque.h>
int
tryPushFront(bslmf::MovableRef<TYPE> item);Description
If the container is not full (see {`High‐Water Mark` Feature}), append the specified move‐insertable item to the front of the container, otherwise leave the container unchanged. If the container is modified, item is left in a valid but unspecified state, otherwise item is unchanged. Return 0 if the container was updated and a non‐zero value otherwise.
Return Value
0 if the container was updated, and a non‐zero value otherwise
Parameters
Name |
Description |
item |
value to move‐append |
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