POSIX specification: http://www.opengroup.org/susv3xsh/setcontext.html
Gnulib module: —
Portability problems fixed by Gnulib:
Portability problems not fixed by Gnulib:
- This function is missing on some platforms:
Mac OS X 10.4, OpenBSD 3.8, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
- The effects of this call are system and compiler optimization dependent,
since it restores the contents of register-allocated variables but not
the contents of stack-allocated variables.