3 ms·

Can you elaborate on that. It doesn't seem to work correctly on my machine. Writing beyond heap bounds and uninitialized reads.

• rumcajz 11y ago
  It uses dynamically allocated array (char filler_[...]) to shift stack pointer to arbitrary memory address. If it doesn't work with your compiler you may try to use alloca() instead.
  • ehmmm 11y ago
    Oh I see, it moves the stack pointer so it coincides with the heap allocated memory? I like articles that combine hacking and C, but this one really needs more explanation.
    • rumcajz 11y ago
      This article is really about the arguments to the coroutine. The original idea for shifting the stack pointer comes from here: http://fanf.livejournal.com/105413.html http://fanf.livejournal.com/105413.html
  • thechao 11y ago
    Here's my implementation in c++, using alloca(): https://github.com/jaroslov/coro https://github.com/jaroslov/coro. Without debugger support, coroutines are pretty difficult to work with.