shrink_to_fit_impl()

void fl::vector_basic::shrink_to_fit_impl

(

)

Definition at line 103 of file basic_vector.cpp.hpp.

                                      {
    if (mSize == 0) {
        if (!isInline() && mArray) {
            mResource->deallocate(mArray, mCapacity * mElementSize);
        }
        if (hasInlineBuffer()) {
            mArray = inlineBufferPtr();
            mCapacity = mInlineCapacity;
        } else {
            mArray = nullptr;
            mCapacity = 0;
        }
        return;
    }
 
    // If data fits in inline buffer and we're on heap, move back to inline
    if (hasInlineBuffer() && !isInline() && mSize <= mInlineCapacity) {
        void* inline_buf = inlineBufferPtr();
        if (mOps) {
            mOps->uninitialized_move_n(inline_buf, mArray, mSize);
            mOps->destroy_n(mArray, mSize);
        } else {
            trivial_copy(inline_buf, mArray, mSize);
        }
        mResource->deallocate(mArray, mCapacity * mElementSize);
        mArray = inline_buf;
        mCapacity = mInlineCapacity;
        return;
    }
 
    // Shrink heap allocation
    if (!isInline() && mCapacity > mSize) {
        void* new_buf = mResource->allocate(mSize * mElementSize);
        if (new_buf) {
            if (mOps) {
                mOps->uninitialized_move_n(new_buf, mArray, mSize);
                mOps->destroy_n(mArray, mSize);
            } else {
                trivial_copy(new_buf, mArray, mSize);
            }
            mResource->deallocate(mArray, mCapacity * mElementSize);
            mArray = new_buf;
            mCapacity = mSize;
        }
    }
}

References hasInlineBuffer(), inlineBufferPtr(), isInline(), mArray, mCapacity, mElementSize, mInlineCapacity, mOps, mResource, mSize, and trivial_copy().

Referenced by fl::vector< fl::i16 >::shrink_to_fit().

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