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How to find memory leak in a C++ code/project?

...e software tools 1 Understand the operator basics. The C++ operator new allocates heap memory. The delete operator frees heap memory. For every new, you should use a delete so that you free the same memory you allocated: char* str = new char [30]; // Allocate 30 bytes to house a string. delete ...
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How to un-escape a backslash-escaped string?

... Basically for Python3 you want print(b"Hello,\nworld!".decode('unicode_escape')) – ChristopheD Apr 7 '15 at 8:35 ...
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Why is __init__() always called after __new__()?

... new instance. __new__ is the first step of instance creation. It's called first, and is responsible for returning a new instance of your class. In contrast, __init__ doesn't return anything; it's only responsible for initializing the instance after it's been created. In ge...
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How to use Chrome's network debugger with redirects

The Chrome network debugger gives me a great view of all the HTTP resources loaded for a page. But it clears the list whenever a new top-level HTML page is loaded. This makes it very difficult to debug pages that automatically reload for one reason or another (running script or 300 responses). ...
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How can a web application send push notifications to iOS devices? [closed]

... 11 Answers 11 Active ...
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GCC dump preprocessor defines

...nstead of the normal output, generate a list of `#define' directives for all the macros defined during the execution of the preprocessor, including predefined macros. This gives you a way of finding out what is predefined in your version of the preprocessor. Assuming you have no file...
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What is the difference between setUp() and setUpClass() in Python unittest?

...erence (as noted in the answer by Benjamin Hodgson) is that setUpClass is called only once and that is before all the tests, while setUp is called immediately before each and every test. (NB: The same applies to the equivalent methods in other xUnit test frameworks, not just Python's unittest.) From...
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How to RSYNC a single file?

... anywhere on the server by just specifying it's path? The man page isn't really clear about that. – user1115652 Jun 18 '16 at 9:11 2 ...
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How to match any non white space character except a particular one?

...The above answer will only return the first match of a string. If you want all matches to be returned add the g modifier. /[^\s\\]/g – Ben Carp Dec 1 '19 at 12:13 ...
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How to avoid circular imports in Python? [duplicate]

....py Types of circular import problems Circular import dependencies typically fall into two categories depending on what you're trying to import and where you're using it inside each module. (And whether you're using python 2 or 3). 1. Errors importing modules with circular imports In some cases...