kc3-lang/gnulib/doc/posix-functions/longjmp.texi

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  Date : 2019-09-22T23:23:20
  

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• doc/posix-functions/longjmp.texi

• @node longjmp
  @section @code{longjmp}
  @findex longjmp
  
  POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/longjmp.html}
  
  Gnulib module: ---
  
  Portability problems fixed by Gnulib:
  @itemize
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @item
  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.
  @item
  When longjumping out of a signal handler that was being executed on an
  alternate stack (installed through @code{sigaltstack}), on FreeBSD, NetBSD,
  OpenBSD, you need to clear the @code{SS_ONSTACK} flag in the @code{stack_t}
  structure managed by the kernel.
  @end itemize
  

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