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Tag Archives: cpp-unordered_map-functions

The unordered_map::emplace() is a built-in function in C++ STL which inserts the key and its element in the unordered_map container. It effectively increases the container… Read More
cbegin function in c++ is used to return a constant iterator pointing the first element in an unordered map. Syntax: unordered_map.cbegin() Parameter: It takes an… Read More
As we know a Bucket is a slot in the container’s internal hash table to which all the element are assigned based on the hash… Read More
find function in C++ is used to search for a specific key in an unordered map. Syntax unordered_map.find(key); Parameters: It takes the key as a… Read More
erase function is used to erase elements from the unordered_map. There are three type of erase functions supported by unordered_map : erasing by iterator: It… Read More
unordered_multimap::get_allocator() is a built in function in C++ STL which is used to get allocator of container unordered_mulitmap. Syntax: Allocator_type get_allocator() Parameters: This function does… Read More
unordered_map::get_allocator() is a built in function in C++ STL which is used to get allocator of container unordered_map. Syntax Allocator_type get_allocator() Parameters: This function does… Read More
The unordered_map::insert() is a built-in function in C++ STL which is used to insert elements with a particular key in the unordered_map container. This function… Read More
unordered_map::empty() function is used to check whether container size is zero or not. If container size is zero then it return TRUE otherwise it return… Read More
unordered_map::clear() function is used to remove all elements from the container. When this function is applied to unordered_map its size becomes zero. Syntax: unordered_map_name.clear() Parameters:… Read More
The unordered_map::cend() is a built-in function in C++ STL which returns an iterator pointing to the position past the end element in the container or… Read More
The unordered_map::emplace_hint() is a built-in function in C++ STL which inserts the key and its element in the unordered_map container with a given hint. It… Read More
The unordered_map::hash_function() is a built in function in C++ STL which is used to get the hash function. This hash function is a unary function… Read More
unordered_map::key_eq() is a built-in function in C++ STL which returns a boolean value according to the comparison. It depends on the key equivalence comparison predicate… Read More