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annotate doc/posix-functions/setjmp.texi @ 10165:ce916d729e43

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Document abort() bugs. * doc/posix-functions/abort.texi (abort): Mention anomalies. * doc/posix-functions/setjmp.texi (setjmp): Mingw has setjmp. * doc/posix-functions/sigsetjmp.texi (sigsetjmp): Cygwin has sigsetjmp. * doc/posix-functions/siglongjmp.texi (siglongjmp): Cygwin has siglongjmp, but only as a macro. * doc/posix-functions/_longjmp.texi (_longjmp): Mention that this is obsolete. * doc/posix-functions/_setjmp.texi (_setjmp): Likewise. Signed-off-by: Eric Blake <ebb9@byu.net>
author Eric Blake <ebb9@byu.net>
date Fri, 06 Jun 2008 10:50:17 -0600
parents 070329237839
children 7239ee79f3fa
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070329237839 Rename two directories: headers -> posix-headers, functions -> posix-functions.
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1 @node setjmp
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2 @section @code{setjmp}
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3 @findex setjmp
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4
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5 POSIX specification: @url{http://www.opengroup.org/susv3xsh/setjmp.html}
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6
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7 Gnulib module: ---
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8
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9 Portability problems fixed by Gnulib:
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10 @itemize
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11 @end itemize
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12
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13 Portability problems not fixed by Gnulib:
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14 @itemize
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15 @item
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16 POSIX does not specify whether @code{setjmp} saves the signal mask in the
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17 @code{jmp_buf}. It does on BSD platforms, and on glibc platforms when
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18 @code{_BSD_SOURCE} is defined; in this case @code{setjmp} behaves like
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19 @code{sigsetjmp}, and functions @code{_setjmp} and @code{_longjmp} are
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20 available that don't save or restore the signal mask. On System V platforms,
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21 and on glibc platforms by default, @code{setjmp} doesn't save the signal mask.
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22 @end itemize