Return an iterator to the first element with key not less than key.
Description
Return an iterator providing modifiable access to the first (i.e., ordered least) value_type object in this map whose key is greater‐than or equal‐to the specified key, and the past‐the‐end iterator if this map does not contain a value_type object whose key is greater‐than or equal‐to key. Note that this function returns the first position before which a value_type object having an equivalent key could be inserted into the ordered sequence maintained by this map, while preserving its ordering.
Return Value
iterator to the lower bound, or end()
Parameters
Name |
Description |
key |
key value to look up |
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