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Use of 'const' for function parameters
...ide the parameter by value so the caller does not need to know anything on what you do (internally) with it. So write class Foo { int multiply(int a, int b) const; } in your header. In your implementation you do care that you can promise not to alter a and b so int Foo::multiply(const int a, const i...
What is the difference between fastcgi and fpm?
...00 children... However, the reverse is true. If FPM gets killed (segfault, whatever), your entire worker dies. In SpawnFCGI, if one of the processes dies, the rest can remain alive... So it's not a clear one-is-better-than-the-other. Different approaches. FPM is recommended not for technical reasons...
Is main() really start of a C++ program?
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@Nawaz: What is static global blocks? will you please explain it using simple example? Thanks
– Destructor
May 4 '15 at 11:13
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What is the best way to use a HashMap in C++?
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A hash_map is an older, unstandardized version of what for standardization purposes is called an unordered_map (originally in TR1, and included in the standard since C++11). As the name implies, it's different from std::map primarily in being unordered -- if, for example, yo...
ERROR 1452: Cannot add or update a child row: a foreign key constraint fails
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What about optional relations?
– Hamed Hamedi
Mar 6 '19 at 16:57
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Dynamic type languages versus static type languages
What are the advantages and limitations of dynamic type languages compared to static type languages?
9 Answers
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Factory Pattern. When to use factory methods?
..., when they need a new employee, they call the hiring agency and tell them what they need. Now, to actually hire someone, you need to know a lot of stuff - benefits, eligibility verification, etc. But the person hiring doesn't need to know any of this - the hiring agency handles all of that.
In ...
What characters are allowed in an email address?
... @WildWzyr, It's not that simple. Email addresses have a lot of rules for what is allowed. It's simpler to refer to the spec than to list out all of them. If you want the complete Regex, check here to get an idea of why it's not so simple: regular-expressions.info/email.html
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findViewById in Fragment
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so what is the function I can override to implement this if onCreate is not the right place ?
– Nico AD
Jul 24 '12 at 11:47
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Is there any difference between GROUP BY and DISTINCT
...at if you are using "Group By" and not using any aggregate functions, then what you actually mean is "Distinct" - and therefore it generates an execution plan as if you'd simply used "Distinct."
However, I think it's important to note Hank's response as well - cavalier treatment of "Group By" and "...