Method from_memory

include/pybind11/pytypes.h:2491–2498

\rst Creates ``memoryview`` from static memory. This method is meant for providing a ``memoryview`` for C/C++ buffer not managed by Python. The caller is responsible for managing the lifetime of ``mem``, which MUST outlive the memoryview constructed here. See also: Python C API documentation for `PyMemoryView_FromBuffer`_. .. _PyMemoryView_FromMem

           https://docs.python.org/c-api/memoryview.html#c.PyMemoryView_FromMemory
     \endrst */
    static memoryview from_memory(void *mem, ssize_t size, bool readonly = false) {
        PyObject *ptr = PyMemoryView_FromMemory(
            reinterpret_cast<char *>(mem), size, (readonly) ? PyBUF_READ : PyBUF_WRITE);
        if (!ptr) {
            pybind11_fail("Could not allocate memoryview object!");
        }
        return memoryview(object(ptr, stolen_t{}));
    }

    static memoryview from_memory(const void *mem, ssize_t size) {
        return memoryview::from_memory(const_cast<void *>(mem), size, true);