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Generating all permutations of a given string
...all the permutations of a string. E.g. permutation for ba , would be ba and ab , but what about longer string such as abcdefgh ? Is there any Java implementation example?
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Proper way to exit iPhone application?
I am programming an iPhone app, and I need to force it to exit due to certain user actions. After cleaning up memory the app allocated, what's the appropriate method to call to terminate the application?
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Can anyone explain this strange behavior with signed floats in C#?
...When at least one field is not 8 bytes wide, CanCompareBits returns false, and the code proceeds to use reflection to loop over the fields and call Equals for each value, which correctly treats -0.0 as equal to 0.0.
Here is the source for CanCompareBits from SSCLI:
FCIMPL1(FC_BOOL_RET, ValueTypeHe...
HTML5 Number Input - Always show 2 decimal places
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Solved following the suggestions and adding a piece of jQuery to force the format on integers:
parseFloat($(this).val()).toFixed(2)
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MySql: Tinyint (2) vs tinyint(1) - what is the difference?
...) or tinyint(2), it does not make any difference.
I always use tinyint(1) and int(11), I used several mysql clients (navicat, sequel pro).
It does not mean anything AT ALL! I ran a test, all above clients or even the command-line client seems to ignore this.
But, display width is most important i...
What's the difference of “./configure” option “--build”, “--host” and “--target”?
The script ./configure accepts 3 options --build , --host and --target . I'm confusing their roles. What's the difference and semantics of them?
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Resize image proportionally with MaxHeight and MaxWidth constraints
...wing scenarios:
Is the image smaller than the bounding box?
Is the Image and the Bounding Box square?
Is the Image square and the bounding box isn't
Is the image wider and taller than the bounding box
Is the image wider than the bounding box
Is the image taller than the bounding box
private Image...
How to share my Docker-Image without using the Docker-Hub?
...hout using the Docker-Hub or a Dockerfile but the 'real' Docker-Image? And what is exactly happening when I 'push' my Docker-Image to Docker-Hub?
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Convert int to ASCII and back in Python
I'm working on making a URL shortener for my site, and my current plan (I'm open to suggestions) is to use a node ID to generate the shortened URL. So, in theory, node 26 might be short.com/z , node 1 might be short.com/a , node 52 might be short.com/Z , and node 104 might be short.com/ZZ . When...
C++ Convert string (or char*) to wstring (or wchar_t*)
... string of your interest, then your problem can be fully solved with the standard library (C++11 and newer) alone.
The TL;DR version:
#include <locale>
#include <codecvt>
#include <string>
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
std::string ...