What are the mechanics of coroutines in C++20?

N4775 outlines the proposal for coroutines for C++20. It introduces an number of different ideas. The following is from my blog at https://dwcomputersolutions.net . More info can be found in my other posts. Before we examine our whole Hello World coroutine program, go through the various parts step-by-step. These include: The coroutine Promise The coroutine … Read more

Are stackless C++20 coroutines a problem?

I use stackless coroutines on small, hard-realtime ARM Cortex-M0 targets, with 32kb of RAM, where there’s no heap allocator present at all: all memory is statically preallocated. The stackless coroutines are a make-or-break, and stackful coroutines that I had previously used were a pain to get right, and were essentially a hack wholly based on … Read more

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