Function ggml_add_cast_impl

subprojects/llama.cpp/ggml/src/ggml.c:1987–2008

// ggml_add_cast

static struct ggml_tensor * ggml_add_cast_impl(
        struct ggml_context * ctx,
        struct ggml_tensor  * a,
        struct ggml_tensor  * b,
        enum   ggml_type      type) {
    // TODO: support less-strict constraint
    //       GGML_ASSERT(ggml_can_repeat(b, a));
    GGML_ASSERT(ggml_can_repeat_rows(b, a));

    // currently only supported for quantized input and f16
    GGML_ASSERT(ggml_is_quantized(a->type) ||
                a->type == GGML_TYPE_F16 ||
                a->type == GGML_TYPE_BF16);

    struct ggml_tensor * result = ggml_new_tensor(ctx, type, GGML_MAX_DIMS, a->ne);

    result->op     = GGML_OP_ADD;
    result->src[0] = a;
    result->src[1] = b;

    return result;
}

struct ggml_tensor * ggml_add_cast(
        struct ggml_context * ctx,