Function IndexData

imgui/implot_items.cpp:491–500

template <typename T>
IMPLOT_INLINE T IndexData(const T* data, int idx, int count, int offset, int stride) {
    const int s = ((offset == 0) << 0) | ((stride == sizeof(T)) << 1);
    switch (s) {
        case 3 : return data[idx];
        case 2 : return data[(offset + idx) % count];
        case 1 : return *(const T*)(const void*)((const unsigned char*)data + (size_t)((idx) ) * stride);
        case 0 : return *(const T*)(const void*)((const unsigned char*)data + (size_t)((offset + idx) % count) * stride);
        default: return T(0);
    }
}

template <typename T>
struct IndexerIdx {