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printf() formatting for hex
...s 0x00000007
printf("%#08x\n", i); // gives 0x000007
Also changing the case of x, affects the casing of the outputted characters.
printf("%04x", 4779); // gives 12ab
printf("%04X", 4779); // gives 12AB
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Rendering JSON in controller
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You'll normally be returning JSON either because:
A) You are building part / all of your application as a Single Page Application (SPA) and you need your client-side JavaScript to be able to pull in additional data without fully reloading the page.
or
B) You are bu...
Golang tests in sub-directory
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Note that you can run go test "recursively": you need to list all the packages you want to test.
If you are in the root folder of your Go project, type:
go test ./...
The './...' notation is described in the section "Description of packag...
Catch-22 prevents streamed TCP WCF service securable by WIF; ruining my Christmas, mental health
...ure a streamed WCF net.tcp service endpoint using WIF . It should authenticate incoming calls against our token server. The service is streamed because it is designed to transfer large amounts of data n stuff.
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[精华] VC中BSTR、Char和CString类型的转换 - C/C++ - 清泛网 - 专注C/C++及内核技术
...义分别是ANSI、Unicode、“一般”类型和OLE字符串。例如，CA2CT就是将ANSI转换成一般类型的字符串常量。下面是一些示例代码：
LPTSTR tstr= CA2TEX<16>("this is a test");
LPCTSTR tcstr= CA2CT("this is a test");
wchar_t wszStr[] = L"This is a test";
char* ...
How do I calculate a point on a circle’s circumference?
How can the following function be implemented in various languages?
4 Answers
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What does the @ symbol represent in objective-c?
...y become part of the method signature available from the runtime, which DO can look at to determine how to best serialize a transaction.) There are also the attributes within @property declarations, copy, retain, assign, readonly, readwrite, nonatomic, getter, and setter; those are only valid withi...
Why does Java's Arrays.sort method use two different sorting algorithms for different types?
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The most likely reason: quicksort is not stable, i.e. equal entries can change their relative position during the sort; among other things, this means that if you sort an already sorted array, it may not stay unchanged.
Since primitive types have no identity (there is no way to distinguish t...
How can I set the max-width of a table cell using percentages?
The above does not work. How can I set the max-width of a table cell using percentages?
4 Answers
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How to use JavaScript source maps (.map files)?
...re for js and css (and now ts too) files that have been minified. They are called SourceMaps. When you minify a file, like the angular.js file, it takes thousands of lines of pretty code and turns it into only a few lines of ugly code. Hopefully, when you are shipping your code to production, you ar...