freebsd-ports/devel/libcoro/pkg-descr

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Excerpt from The Art of Computer Programming by D. E. Knuth:
"Subroutines are special cases of more general program
components, called coroutines. In contrast to the un-
symmetric relationship between a main routine and a sub-
routine, there is complete symmetry between coroutines,
which call on each other."
coro is a C library that implements the low level handling of coroutines.
Despite it's simplicity, there is no portable way to implement them. The goal
of this library is to build a standard API for coroutines and implement it for
as many architectures as possible. Currently on the i386 architecture is
supported.
-Kelly
kbyanc@posi.net