generator_next: Retrieve the next item from a generator
Description
Use to retrieve items from generators (e.g. image_data_generator()
). Will return
either the next item or NULL
if there are no more items.
Usage
generator_next(generator, completed = NULL)
Arguments
- generator
Generator
- completed
Sentinel value to return from generator_next()
if the iteration
completes (defaults to NULL
but can be any R value you specify).