IO::Buffer#valid?

valid? → true or false

static VALUE
rb_io_buffer_valid_p(VALUE self)
{
    struct rb_io_buffer *buffer = NULL;
    TypedData_Get_Struct(self, struct rb_io_buffer, &rb_io_buffer_type, buffer);

    return RBOOL(io_buffer_validate(buffer));
}

Returns whether the buffer buffer is accessible.

A buffer becomes invalid if it is a slice of another buffer (or string) which has been freed or re-allocated at a different address.

See also #transfer #values #to_s #write also in 4.1 · 4.0 · 3.4 · 3.2 · 3.1

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