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Initializing a static std::map in C++
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No, the danger is that there is nothing saying in which order the static variables should be initialized (at least across compilation units). But this is not a problem linked to this question. This is a general problem with static variables.
– PierreBdR
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What is “(program)” in Chrome debugger’s profiler?
...ostly function, you need to hunt inside it for what could be optimized. In order to do that, you need to know how the time is subdivided among the lines of code in the function. If you had cost on a line of code basis, it would take you directly to those lines.
I don't know if you will be able to g...
Disable pasting text into HTML form
... }
}
}
}
})();
To make use of this in order to disable pasting:
<input type="text" onpaste="return false;" />
* I know oninput isn't part of the W3C DOM spec, but all of the browsers I've tested this code with—Chrome 2, Safari 4, Firefox 3, Opera 10,...
C++ : why bool is 8 bits long?
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For this reason, it is quite common to use techniques of "bit packing" in order to increase efficiency in using "boolean" base data types. A technique such as enum (in C) with power of 2 coding is a good example. The same sort of trick is found in most languages.
Updated: Thanks to a excellent dis...
For i = 0, why is (i += i++) equal to 0?
...d value of x becomes the result of the operation.
Note that due to order of precedence, the postfix ++ occurs before +=, but the result ends up being unused (as the previous value of i is used).
A more thorough decomposition of i += i++ to the parts it is made of requires one to know that...
Metadata file … could not be found error when building projects
...ou right-click on your Solution in the Solution Explorer and select "Build Order" you can see the order that VS is using to rebuild your solution. It's likely out of whack.
You can correct the build order by clicking on the Dependencies tab and selecting the projects that depends on other projects ...
Container-fluid vs .container
...uestion that would be great but SO does not seem to let us suggest our own order. And reading my original comment I was not as clear as I could have been. Anyhoo thanks for the info.
– BeNice
Jun 21 '19 at 16:51
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Rspec: “array.should == another_array” but without concern for order
...o compare arrays and make sure that they contain the same elements, in any order. Is there a concise way to do this in RSpec?
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How to read the value of a private field from a different class in Java?
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In order to access private fields, you need to get them from the class's declared fields and then make them accessible:
Field f = obj.getClass().getDeclaredField("stuffIWant"); //NoSuchFieldException
f.setAccessible(true);
Hash...
Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
...cle (and I believe a version of this also appeared in CACM) shows how link order and OS environment size changes alone were sufficient to shift performance significantly. They attribute this to alignment of "hot loops".
This paper, titled "Producing wrong data without doing anything obviously wron...