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Coalesce function for PHP?
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In this case, array unions work pretty nicely ($getstuff = $_GET+$_SESSION+array('id'=>null);$id=$getstuff['id'];).
– Brilliand
Dec 29 '14 at 22:58
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Command-line Unix ASCII-based charting / plotting tool
Is there a good command-line UNIX charting / graphing / plotting tool out there? I'm looking for something that will plot xy points on an ASCII graph.
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How to make vim paste from (and copy to) system's clipboard?
...system clipboard. On X11 systems both registers can be used. See :help x11-selection for more details, but basically the "* is analogous to X11's _PRIMARY_ selection (which usually copies things you select with the mouse and pastes with the middle mouse button) and "+ is analogous to X11's _CLIPBOAR...
How to display the function, procedure, triggers source code in postgresql?
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For function:
you can query the pg_proc view , just as the following
select proname,prosrc from pg_proc where proname= your_function_name;
Another way is that just execute the commont \df and \ef which can list the functions.
skytf=> \df
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JNI converting jstring to char *
... jstring data type through the use of JNI. And my library method needs a char * as url.
2 Answers
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Exact difference between CharSequence and String in java [duplicate]
...SR 378 again…
Using "one-dimensional" string literals.
String query = "SELECT \"EMP_ID\", \"LAST_NAME\" FROM \"EMPLOYEE_TB\"\n" +
"WHERE \"CITY\" = 'INDIANAPOLIS'\n" +
"ORDER BY \"EMP_ID\", \"LAST_NAME\";\n";
Using a "two-dimensional" block of text
String query =...
IEnumerable to string [duplicate]
...urer sequence, rather than a cast. Something like Enumerable.Range(65, 26).Select(i => (char)i);, this should avoid the chance for an optimized shortcut.
– Jodrell
Oct 28 '13 at 9:39
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'printf' vs. 'cout' in C++
... namespace problems - as long you have a class (which isn't limited to one character), you can have working std::ostream overloading for it.
However, I doubt that many people would want to extend ostream (to be honest, I rarely saw such extensions, even if they are easy to make). However, it's here...
Compile time string hashing
...7b82d07L,
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};
template<size_t idx>
constexpr uint32_t crc32(const char * str)
{
return (crc32<idx-1>(str) >> 8) ^ crc_table[(crc32<idx-1>(str) ^ str[idx]) & 0x000000FF];
}
// This is the stop-recursion function
template<>
constexpr uint32_t crc32<size_t(-...
Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...er=extmail password=extmail
default_pass_scheme = CRYPT
password_query = SELECT username AS user,password AS password FROM mailbox WHERE username = '%u'
user_query = SELECT maildir, uidnumber AS uid, gidnumber AS gid FROM mailbox WHERE username = '%u'
启动dovecot
service dovecot start
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