[#bsl-multiset-03-erase-0f]
= xref:bsl.adoc[bsl]::xref:bsl/multiset-03.adoc[multiset]::erase
:relfileprefix: ../../
:mrdocs:

`erase` overloads

== Synopses

Declared in `<bslstl_multiset.h>`

Remove from this multiset the `value_type` object at the specified `position`, and return an iterator referring to the element immediately following the removed element, or to the past‐the‐end position if the removed element was the last element in the sequence of elements maintained by this multiset. This method invalidates only iterators and references to the removed element and previously saved values of the `end()` iterator. The behavior is undefined unless `position` refers to a `value_type` object in this multiset.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/multiset-03/iterator.adoc[multiset<KEY, COMPARATOR, ALLOCATOR>::iterator]
xref:bsl/multiset-03/erase-02.adoc[erase](xref:bsl/multiset-03/const_iterator.adoc[const_iterator] position);
----

[.small]#xref:bsl/multiset-03/erase-02.adoc[_» more..._]#

Remove from this multiset all `value_type` objects equivalent to the specified `key`, if they exist, and return the number of erased objects; otherwise, if there are no `value_type` objects equivalent to `key`, return 0 with no other effect. This method invalidates only iterators and references to the removed element and previously saved values of the `end()` iterator.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/multiset-03/size_type.adoc[multiset<KEY, COMPARATOR, ALLOCATOR>::size_type]
xref:bsl/multiset-03/erase-05.adoc[erase](xref:bsl/multiset-03/key_type.adoc[key_type] const& key);
----

[.small]#xref:bsl/multiset-03/erase-05.adoc[_» more..._]#

Remove all elements matching the specified transparent `key`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_KEY>
xref:bsl/multiset-03/size_type.adoc[size_type]
xref:bsl/multiset-03/erase-0a.adoc[erase](t_KEY&& key)
requires BloombergLP::bslmf::IsTransparentPredicate<COMPARATOR,
                                                   t_KEY>::value &&
        !is_convertible<BSLS_COMPILERFEATURES_FORWARD_REF(t_KEY),
                        iterator>::value &&
        !is_convertible<BSLS_COMPILERFEATURES_FORWARD_REF(t_KEY),
                        const_iterator>::value;
----

[.small]#xref:bsl/multiset-03/erase-0a.adoc[_» more..._]#

Remove from this multiset the `value_type` objects starting at the specified `first` position up to, but not including the specified `last` position, and return `last`. This method invalidates only iterators and references to the removed element and previously saved values of the `end()` iterator. The behavior is undefined unless `first` and `last` either refer to elements in this multiset or are the `end` iterator, and the `first` position is at or before the `last` position in the ordered sequence provided by this container.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/multiset-03/iterator.adoc[multiset<KEY, COMPARATOR, ALLOCATOR>::iterator]
xref:bsl/multiset-03/erase-03.adoc[erase](
    xref:bsl/multiset-03/const_iterator.adoc[const_iterator] first,
    xref:bsl/multiset-03/const_iterator.adoc[const_iterator] last);
----

[.small]#xref:bsl/multiset-03/erase-03.adoc[_» more..._]#


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