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Java heap terminology: young, old and permanent generations?
... permanent generations are in the Java heap terminology, and more specifically the interactions between the three generations.
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Difference between CC, gcc and g++?
...tform-specific, is the meaning of 'CC' (and 'cc').
On Solaris, CC is normally the name of the Sun C++ compiler.
On Solaris, cc is normally the name of the Sun C compiler.
On Linux, if it exists, CC is probably a link to g++.
On Linux, cc is a link to gcc.
However, even on Solaris, it could be th...
How does git compute file hashes?
...his to the output of echo 'Hello, World!' | git hash-object --stdin. Optionally you can specify --no-filters to make sure no crlf conversion happens, or specify --path=somethi.ng to let git use the filter specified via gitattributes (also @user420667). And -w to actually submit the blob to .git/obje...
What's the difference between design patterns and architectural patterns?
...owledge.
Patterns are distilled commonality that you find in programs. It allows us to deconstruct a large complex structure and build using simple parts. It provides a general solution for a class of problems.
A large complex software goes through a series of deconstruction at different levels. ...
PHP $_SERVER['HTTP_HOST'] vs. $_SERVER['SERVER_NAME'], am I understanding the man pages correctly?
...you either go with that or you check the host name against a white list:
$allowed_hosts = array('foo.example.com', 'bar.example.com');
if (!isset($_SERVER['HTTP_HOST']) || !in_array($_SERVER['HTTP_HOST'], $allowed_hosts)) {
header($_SERVER['SERVER_PROTOCOL'].' 400 Bad Request');
exit;
}
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const vs constexpr on variables
...u can not modify them. However only PI2 is a compile-time constant. It shall be initialized at compile time. PI1 may be initialized at compile time or run time. Furthermore, only PI2 can be used in a context that requires a compile-time constant. For example:
constexpr double PI3 = PI1; // er...
Directive isolate scope with ng-repeat scope in AngularJS
...ed into ngRepeat for use on your directive's attributes do use a prototypically-inherited scope
the reason your directive doesn't work has nothing to do with the isolate scope
Here's an example of the same code but with the directive removed:
<li ng-repeat="name in names"
ng-class="{ activ...
Is there a way to pass optional parameters to a function?
Is there a way in Python to pass optional parameters to a function while calling it and in the function definition have some code based on "only if the optional parameter is passed"
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Can I pass an array as arguments to a method with variable arguments in Java?
...ompatibility.
So you should just be able to prepend extraVar to args and call String.format(format, args).
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How do I “git blame” a deleted line?
...an I find when a line that existed in a specific previous commit was eventually deleted. I'm thinking bisect , but I was hoping for something handier.
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