Function retain

src/api/c/handle.cpp:32–63

namespace arrayfire {

af_array retain(const af_array in) {
    const ArrayInfo &info = getInfo(in, false);
    af_dtype ty           = info.getType();

    if (info.isSparse()) {
        switch (ty) {
            case f32: return retainSparseHandle<float>(in);
            case f64: return retainSparseHandle<double>(in);
            case c32: return retainSparseHandle<detail::cfloat>(in);
            case c64: return retainSparseHandle<detail::cdouble>(in);
            default: TYPE_ERROR(1, ty);
        }
    } else {
        switch (ty) {
            case f32: return retainHandle<float>(in);
            case f64: return retainHandle<double>(in);
            case s32: return retainHandle<int>(in);
            case u32: return retainHandle<uint>(in);
            case s8: return retainHandle<schar>(in);
            case u8: return retainHandle<uchar>(in);
            case c32: return retainHandle<detail::cfloat>(in);
            case c64: return retainHandle<detail::cdouble>(in);
            case b8: return retainHandle<char>(in);
            case s64: return retainHandle<intl>(in);
            case u64: return retainHandle<uintl>(in);
            case s16: return retainHandle<short>(in);
            case u16: return retainHandle<ushort>(in);
            case f16: return retainHandle<half>(in);
            default: TYPE_ERROR(1, ty);
        }
    }
}

af_array createHandle(const dim4 &d, af_dtype dtype) {
    // clang-format off