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Coalesce function for PHP?
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There is a new operator in php 5.3 which does this: ?:
// A
echo 'A' ?: 'B';
// B
echo '' ?: 'B';
// B
echo false ?: 'B';
// B
echo null ?: 'B';
Source: http://www.php.net/ChangeLog-5.php#5.3.0
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What is the “FS”/“GS” register intended for?
So I know what the following registers and their uses are supposed to be:
5 Answers
5
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How does BLAS get such extreme performance?
...ion function versus the BLAS implementation... I was to say the least surprised at the result:
8 Answers
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How to initialize an array's length in JavaScript?
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Why do you want to initialize the length? Theoretically there is no need for this. It can even result in confusing behavior, because all tests that use the length to find out whether an array is empty or not will report that the array is not empty.
Some tests show that setting the initi...
Is there any use for unique_ptr with array?
...with allocators. Some people need a dynamically sized array, so std::array is out. And some people get their arrays from other code that is known to return an array; and that code isn't going to be rewritten to return a vector or something.
By allowing unique_ptr<T[]>, you service those needs...
String comparison using '==' vs. 'strcmp()'
It seems that PHP's === operator is case sensitive. So is there a reason to use strcmp() ?
13 Answers
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What are the differences between “generic” types in C++ and Java?
...+ provides a very strong programming model with template s.
So then, what is the difference between C++ and Java generics?
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How do you check whether a number is divisible by another number (Python)?
I need to test whether each number from 1 to 1000 is a multiple of 3 or a multiple of 5. The way I thought I'd do this would be to divide the number by 3, and if the result is an integer then it would be a multiple of 3. Same with 5.
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What is WebKit and how is it related to CSS?
...ed questions relating to CSS, jQuery, layouts, cross-browers compatibility issues, etc...
14 Answers
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Override Java System.currentTimeMillis for testing time sensitive code
Is there a way, either in code or with JVM arguments, to override the current time, as presented via System.currentTimeMillis , other than manually changing the system clock on the host machine?
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