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Compiling C++ on remote Linux machine - “clock skew detected” warning
...e make decides which files to compile when performing an incremental build by checking if a source files has been modified more recently than its object file, this situation can cause unnecessary files to be built, or worse, necessary files to not be built.
However, if you are building from scratch...
Increment a value in Postgres
...alue (which is an integer) in a field in a postgres table and increment it by one. For example if the table 'totals' had 2 columns, 'name' and 'total', and Bill had a total of 203, what would be the SQL statement I'd use in order to move Bill's total to 204?
...
What is “406-Not Acceptable Response” in HTTP?
In my Ruby on Rails application I tried to upload an image through the POSTMAN REST client in Base64 format. When I POST the image I am getting a 406 Not Acceptable Response . When I checked my database, the image was there and was successfully saved.
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Entity Framework and Connection Pooling
... about NHibernate Session but the idea is same.
Edit:
When you use EF it by default loads each entity only once per context. The first query creates entity instace and stores it internally. Any subsequent query which requires entity with the same key returns this stored instance. If values in the ...
Can I create more than one repository for github pages?
...
You can have one site published to https://<username>.github.io by publishing to the master branch of a repository named “username.github.io” (substituting your actual username).
You can also have an additional site per GitHub project published to https://<username>.github.io/&...
Moving project to another folder in Eclipse
...rer Tab might still be the ones contained in the old_dir (you can check it by right clicking each and following through: "Resource -> Linked Resource" to see the Path Variables values). Thus, they have to be removed from this work space. Delete the Nios 2 Application Project and the BSP Project f...
Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)
... other classes. When the owning class' is destructed, the resource managed by the RAII class gets released because the destructor for the RAII-managed class gets called as a result. This means that when you use RAII for all members in a class that manage resources, you can get away with using a ver...
Comparison between Corona, Phonegap, Titanium
...ferent? Yes. First, Titanium appears to be more feature rich than PhoneGap by bridging more mobile phone functions to javascript. Most noticeably, PhoneGap does not expose many (if any) native UI components to javascript. Titanium, on the other hand, has a comprehensive UI APIs that can be called in...
MySQL error: key specification without a key length
...or BLOB column, try to use VARCHAR type and place a limit of length on it. By default, VARCHAR is limited to a maximum of 255 characters and its limit must be specified implicitly within a bracket right after its declaration, i.e VARCHAR(200) will limit it to 200 characters long only.
Sometimes, ev...
d3 axis labeling
...'t built-in to D3's axis component, but you can add labels yourself simply by adding an SVG text element. A good example of this is my recreation of Gapminder’s animated bubble chart, The Wealth & Health of Nations. The x-axis label looks like this:
svg.append("text")
.attr("class", "x la...