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Can I use if (pointer) instead of if (pointer != NULL)?
...rived_ptr != nullptr) { ... }
(or, preferrably, auto derived_ptr = ...). Now, this is bad, because it leaves the (possibly invalid, i.e. null) derived pointer outside of the safety-guarding if block's scope. This isn't necessary, as C++ allows you to introduce boolean-convertable variables inside ...
Log all queries in mysql
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@Temujin phpmyadmin has now a 'tracking' option for tables where you specify a log('version') and it will keep record of the queries affecting it with information about time and the whole query.
– gadget00
Aug ...
Lost connection to MySQL server at 'reading initial communication packet', system error: 0
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my problem with connector/c++. now, if i could only find what setting needs to be in allow when deny has ALL: ALL...
– user1382306
Jul 8 '13 at 23:30
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@property retain, assign, copy, nonatomic in Objective-C
...mic vs. atomic
- "atomic" is the default. Always use "nonatomic". I don't know why, but the book I read said there is "rarely a reason" to use "atomic". (BTW: The book I read is the BNR "iOS Programming" book.)
readwrite vs. readonly
- "readwrite" is the default. When you @synthesize, both a getter...
GoogleTest: How to skip a test?
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You can now use the GTEST_SKIP() macro to conditionally skip a test at runtime. For example:
TEST(Foo, Bar)
{
if (blah)
GTEST_SKIP();
...
}
Note that this is a very recent feature so you may need to update your Go...
Oracle “(+)” Operator
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You have now labeled the circles a & b. The circles are not rows of a & b. The left & right circles could reasonably be labeled rows of a left join b & a right join b. Moreover, you don't describe what those encircled ...
How can I detect if a file is binary (non-text) in python?
...ause the mimetypes module is not good for all files. I'm looking at a file now which system file reports as "UTF-8 Unicode text, with very long lines" but mimetypes.gest_type() will return (None, None). Also, Apache's mimetype list is a whitelist/subset. It is by no means a complete list of mimetyp...
Vertical Text Direction
...-ms-transform:rotate(90deg);
transform: rotate(90deg);
white-space:nowrap;
display:block;
bottom:0;
width:20px;
height:20px;
}
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How do I “undo” a --single-branch clone?
...'t readily have a command to accomplish this. Yeah I got it working... and now I know about the config file int he .git directory too!
– kashiraja
May 12 '18 at 0:11
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Is right click a Javascript event?
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Awesome +1, now how do I block the context menu? @user12345678
– Shayan
Apr 4 '19 at 13:10
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