erase_range_impl()

void fl::vector_basic::erase_range_impl	(	fl::size	first_index,
		fl::size	count )

Erase range [first_index, first_index + count).

Definition at line 205 of file basic_vector.cpp.hpp.

                                                                    {
    if (count == 0 || first_index >= mSize) return;
    if (first_index + count > mSize) {
        count = mSize - first_index;
    }
 
    fl::size remaining = mSize - first_index - count;
 
    if (mOps) {
        // Destroy erased elements
        for (fl::size i = 0; i < count; ++i) {
            mOps->destroy(element_ptr(first_index + i));
        }
        // Shift remaining elements left one at a time
        for (fl::size i = 0; i < remaining; ++i) {
            void* dst = element_ptr(first_index + i);
            void* src = element_ptr(first_index + count + i);
            mOps->move_construct(dst, src);
            mOps->destroy(src);
        }
    } else {
        // Trivial: memmove the remaining elements left
        if (remaining > 0) {
            trivial_move_left(element_ptr(first_index),
                              element_ptr(first_index + count),
                              remaining);
        }
    }
    mSize -= count;
}

References element_ptr(), mOps, mSize, and trivial_move_left().

Referenced by erase_impl(), and fl::vector< fl::i16 >::erase_range().

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