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When do I use fabs and when is it sufficient to use std::abs?
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In C++, it's always sufficient to use std::abs; it's overloaded for all the numerical types.
In C, abs only works on integers, and you need fabs for floating point values. These are available in C++ (along with all of the C library), but there's no need to use them.
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Structs versus classes
I'm about to create 100,000 objects in code. They are small ones, only with 2 or 3 properties. I'll put them in a generic list and when they are, I'll loop them and check value a and maybe update value b .
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error_log per Virtual Host?
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Depending on your config, you may need to manually create the log file and set the owner/group to the same user/group that Apache is using. Apache won't warn you if it can't write to the log file.
– Ian Dunn
Jun 24 '11 at 23:41
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How is Math.Pow() implemented in .NET Framework?
...k at the implementation of Math.Pow() function. But in .NET Reflector , all I found was this:
4 Answers
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Entity Framework Join 3 Tables
.... I have the exact scenario but the query throws an exception [the_list_of_all_return_variables]' cannot be serialized . @marcinJuraszek - Could you have a look at stackoverflow.com/questions/42453123/…
– sandiejat
Feb 25 '17 at 7:15
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How to “undelete” a deleted folder in Subversion / TortoiseSVN?
We have accidentally deleted the 'tags' folder from our Subversion repository where we only intended to delete one specific tag. What is the easiest way to get the 'tags' folder back?
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CORS: Cannot use wildcard in Access-Control-Allow-Origin when credentials flag is true
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This is a part of security, you cannot do that. If you want to allow credentials then your Access-Control-Allow-Origin must not use *. You will have to specify the exact protocol + domain + port. For reference see these questions :
Access-Control-Allow-Origin wildcard subdomains, ports...
How to echo shell commands as they are executed
In a shell script, how do I echo all shell commands called and expand any variable names?
13 Answers
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How to change the cursor into a hand when a user hovers over a list item?
...move { cursor: move; }
.no-drop { cursor: no-drop; }
.not-allowed { cursor: not-allowed; }
.all-scroll { cursor: all-scroll; }
.col-resize { cursor: col-resize; }
.row-resize { cursor: row-resize; }
.n-resize { cursor: n-resize; }
.e-resize { cursor: e-resi...
How to install plugins to Sublime Text 2 editor?
How to install plugins to the Sublime Text editor?
8 Answers
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