std::erase_if (std::unordered_multimap)

Defined in header `<unordered_map>`
template< class Key, class T, class Hash, class KeyEqual, class Alloc, class Pred > void erase_if(std::unordered_multimap<Key,T,Hash,KeyEqual,Alloc>& c, Pred pred);	(1)	(since C++20)

Erases all elements that satisfy the predicate pred from the container. Equivalent to

for (auto i = c.begin(), last = c.end(); i != last; ) {
  if (pred(*i)) {
    i = c.erase(i);
  } else {
    ++i;
  }
}

c	-	container from which to erase
pred	-	predicate that returns true if the element should be erased

Linear.

Language
Standard Library Headers
Freestanding and hosted implementations
Named requirements
Language support library
Concepts library (C++20)
Diagnostics library
Utilities library
Strings library
Containers library
Iterators library
Ranges library (C++20)
Algorithms library
Numerics library
Input/output library
Localizations library
Regular expressions library (C++11)
Atomic operations library (C++11)
Thread support library (C++11)
Filesystem library (C++17)
Technical Specifications

Member functions
unordered_multimap::unordered_multimap
unordered_multimap::~unordered_multimap
unordered_multimap::operator=
unordered_multimap::get_allocator
Iterators
unordered_multimap::beginunordered_multimap::cbegin
unordered_multimap::endunordered_multimap::cend
Capacity
unordered_multimap::empty
unordered_multimap::size
unordered_multimap::max_size
Modifiers
unordered_multimap::clear
unordered_multimap::insert
unordered_multimap::emplace
unordered_multimap::emplace_hint
unordered_multimap::erase
unordered_multimap::swap
unordered_multimap::extract (C++17)
unordered_multimap::merge (C++17)
Lookup
unordered_multimap::count
unordered_multimap::find
unordered_multimap::contains (C++20)
unordered_multimap::equal_range
Bucket interface
unordered_multimap::begin(size_type)unordered_multimap::cbegin(size_type)
unordered_multimap::end(size_type)unordered_multimap::cend(size_type)
unordered_multimap::bucket_count
unordered_multimap::max_bucket_count
unordered_multimap::bucket_size
unordered_multimap::bucket
Hash policy
unordered_multimap::load_factor
unordered_multimap::max_load_factor
unordered_multimap::rehash
unordered_multimap::reserve
Observers
unordered_multimap::hash_function
unordered_multimap::key_eq
Deduction guides(C++17)