SC::SmallVector< T, N > Struct Template Reference

A Vector that can hold up to N elements inline and > N on heap. More...

#include <Vector.h>

Inheritance diagram for SC::SmallVector< T, N >:

Public Member Functions
	SmallVector (SegmentAllocator allocator=SegmentAllocator::Global) noexcept
	SmallVector (const SmallVector &other) noexcept
	SmallVector (SmallVector &&other) noexcept
SmallVector &	operator= (const SmallVector &other) noexcept
SmallVector &	operator= (SmallVector &&other) noexcept
	SmallVector (const Vector< T > &other) noexcept
	SmallVector (Vector< T > &&other) noexcept
	SmallVector (std::initializer_list< T > list) noexcept
Public Member Functions inherited from SC::Vector< T >
template<typename U >
bool	contains (const U &value, size_t *index=nullptr) const noexcept
	Check if the current array contains a given value. More...
template<typename Lambda >
bool	find (Lambda &&lambda, size_t *index=nullptr) const noexcept
	Finds the first item in array matching criteria given by the lambda. More...
template<typename Lambda >
bool	removeAll (Lambda &&criteria) noexcept
	Removes all items matching criteria given by Lambda. More...
template<typename U >
bool	remove (const U &value) noexcept
	Removes all values equal to value More...

Protected Member Functions
	SmallVector (int num, SegmentAllocator allocator)

Additional Inherited Members
Public Types inherited from SC::Vector< T >
using	Parent = Segment< detail::VectorVTable< T > >

Detailed Description

template<typename T, int N>
struct SC::SmallVector< T, N >

A Vector that can hold up to N elements inline and > N on heap.

Template Parameters

T	Type of single vector element
N	Number of elements kept inline to avoid heap allocation

SC::SmallVector is like SC::Vector but it will do heap allocation once more than N elements are needed.
When the size() becomes less than N the container will switch back using memory coming from inline storage.

Note

SC::SmallVector derives from SC::Vector and it can be passed everywhere a reference to SC::Vector is needed. It can be used to get rid of unnecessary allocations where the upper bound of required elements is known or it can be predicted.

    auto pushThreeIntegers = [](Vector<int>& myVector) -> bool
    {
        SC_TRY(myVector.push_back(1));
        SC_TRY(myVector.push_back(2));
        SC_TRY(myVector.push_back(3));
        return true;
    };
    //...
 
    SmallVector<int, 3> mySmallVector;
    SC_TRY(pushThreeIntegers(mySmallVector)); // <-- No heap allocation will happen
 
    // ... later on
 
    SC_TRY(mySmallVector.push_back(4)); // <-- Vector is now moved to heap
 
    // ... later on
 
    SC_TRY(mySmallVector.pop_back()); // <-- Vector is moved back to SmallVector inline storage

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The documentation for this struct was generated from the following file:

• Vector.h