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Sell me on const correctness
... be more of a pain than a help in C++. But then again, I'm coming at this from the python perspective: if you don't want something to be changed, don't change it. So with that said, here are a few questions:
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Why does NULL = NULL evaluate to false in SQL server
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SQL NULL is not any different from IEEE floating point NaN, where you also have (NaN == NaN) == false && (NaN != Nan) == false && (NaN < NaN) == false && ... - because, well, if it's not a number, you just can't say much about i...
How do I get the RootViewController from a pushed controller?
So, I push a view controller from RootViewController like:
8 Answers
8
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How to get first 5 characters from string [duplicate]
How to get first 5 characters from string using php
5 Answers
5
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Using {} in a case statement. Why?
...ed in the C++ draft standard section 6.1 Labeled statement) and we can see from section 6.7 paragraph 3 that jumping pass a declaration is not allowed in many cases, including those with an initialization:
It is possible to transfer into a block, but not in a way that bypasses declarations with ...
How to deny access to a file in .htaccess
.../directives in the htaccess of subdirectories get applied superceding ones from the parent).
So you can have:
<Files "log.txt">
Order Allow,Deny
Deny from all
</Files>
For Apache 2.4+, you'd use:
<Files "log.txt">
Require all denied
</Files>
In an htaccess fi...
Returning value from Thread
...tDown() (program order rule) which happens-before latch.await() (guarantee from CountDownLatch) which happens-before the read from value[0] (program order rule).
– Adam Zalcman
Aug 22 '14 at 18:09
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Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
...program under a sandbox in Linux. Something that would prevent the program from opening files, or network connections, or forking, exec, etc?
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How to access session variables from any class in ASP.NET?
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(Updated for completeness)
You can access session variables from any page or control using Session["loginId"] and from any class (e.g. from inside a class library), using System.Web.HttpContext.Current.Session["loginId"].
But please read on for my original answer...
I always use a...
How does the C code that prints from 1 to 1000 without loops or conditional statements work?
I've found C code that prints from 1 to 1000 without loops or conditionals :
But I don't understand how it works. Can anyone go through the code and explain each line?
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