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What does -D_XOPEN_SOURCE do/mean?
... different versions of the standard.
500 - X/Open 5, incorporating POSIX 1995
600 - X/Open 6, incorporating POSIX 2004
700 - X/Open 7, incorporating POSIX 2008
You can tell which one you need (if any) by looking at the man page for each function you call.
For example, man strdup says:
Featu...
Storing SHA1 hash values in MySQL
...bytea column.
– Viktor
May 5 '14 at 19:17
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Javascript “this” pointer within nested function
...e a window object.
– Shivam
Jun 28 '19 at 18:46
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Run a callback only if an attribute has changed in Rails
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edited Feb 27 '19 at 17:15
answered Jun 19 '14 at 19:34
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Cleanest way to get last item from Python iterator
...ion to use.
– tokland
Jul 23 '10 at 19:08
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How are booleans formatted in Strings in Python?
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answered Mar 19 at 15:04
irritable_phd_syndromirritable_phd_syndrom
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Completion block for popViewController
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edited Feb 19 '15 at 10:16
Joris Kluivers
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How to list all properties of a PowerShell object
.... Thanks!
– Yanick Girouard
Oct 18 '19 at 13:25
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How to compare two dates in php
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edited Jan 7 '19 at 21:02
answered May 29 '18 at 21:01
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Convert stdClass object to array in PHP
...urned).
– Amal Murali
Jul 28 '16 at 19:18
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i know its too late , but why you not use type castin...