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sigprocmask.2: 'set' and 'oldset' can both be NULL 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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Michael Kerrisk 2017-04-16 20:56:20 +02:00
parent 59e6b4c6be
commit b9ad845d01
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6
man2/sigprocmask.2
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@ -158,6 +158,12 @@ or
See
.BR sigsetops (3)
for details on manipulating signal sets.
Note that it is permissible (although not very useful) to specify both
.I set
and
.I oldset
as NULL.
.\"
.SS C library/kernel differences