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Is 'float a = 3.0;' a correct statement?
...iterals notation in specific scenarios.
For performance reasons:
Specifically, consider:
float foo(float x) { return x * 0.42; }
Here the compiler will emit a conversion (that you will pay at runtime) for each returned value. To avoid it you should declare:
float foo(float x) { return x * 0.4...
In MVC, how do I return a string result?
In my AJAX call, I want to return a string value back to the calling page.
6 Answers
6...
How to find out where a function is defined?
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@EHerman I don't think you can find callers of a function with reflection. If you could it probably wouldn't work well for this because PHP files tend to be included on demand, and so you would likely not have all the code loaded which does call the function.
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Difference between a virtual function and a pure virtual function [duplicate]
...e class. Derived classes can override virtual functions. Virtual functions called through base class pointers/references will be resolved at run-time. That is, the dynamic type of the object is used instead of its static type:
Derived d;
Base& rb = d;
// if Base::f() is virtual and Derived ...
ios simulator: how to close an app
When you "run" the simulator from xCode, the app automatically launches, and then you can click the home button to suspend the app. What I want to do is close the app from within the simulator. So, how can this be done?
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How to convert an int value to string in Go?
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Interesting to note that calling FormatInt() directly instead of Itoa() saves 0.1 nanosecond according to the benchmark at stackoverflow.com/a/38077508/968244
– isapir
Nov 17 '18 at 23:37
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Syntax for a single-line Bash infinite while loop
...type it as a multiline (as you are showing) at the command prompt and then call the history with arrow up, you will get it on a single line, correctly punctuated.
$ while true
> do
> echo "hello"
> sleep 2
> done
hello
hello
hello
^C
$ <arrow up> while true; do echo "hell...
How does the Meteor JavaScript framework work? [closed]
...ou have scripts on server which take data from database and add that dynamically to web-pages and the user-submitted data gets added to databases through some other scrips.
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Why is x86 ugly? Why is it considered inferior when compared to others? [closed]
...implementations translate the x86 instructions into RISC-like instructions called "micro-ops" under the covers to make these kinds of optimizations practical to implement in hardware.
In some respects, the x86 isn't inferior, it's just different. For example, input/output is handled as memory mappin...
JavaScript dependency management: npm vs. bower vs. volo [closed]
...es the difference between npm and bower is: npm manages JavaScript modules called packages and Bower manages front-end components (i.e. css, html, and JavaScript) called components. npm is also used to install bower. Here is an expansive article on npm and bower (does not cover volo) it goes into pl...