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Best way for a 'forgot password' implementation? [closed]

...ause usernames are sometimes forgotten too. The system has a table password_change_requests with the columns ID, Time and UserID. When the new user presses the button, a record is created in the table. The Time column contains the time when the user pressed the "Forgot Password" button. The ID is a ...
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Generate random numbers uniformly over an entire range

...t generate numbers uniformly (it depends on the range and the value of RAND_MAX), and is therefore discouraged. C++11 and generation over a range With C++11 multiple other options have risen. One of which fits your requirements, for generating a random number in a range, pretty nicely: std::uniform_...
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How do I choose between Semaphore and SemaphoreSlim?

... important. Semaphore blocks the thread instead. – r2_118 Jan 4 '16 at 22:34  |  show 3 more comments ...
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C++, Free-Store vs Heap

...oes not distinguish 'heap' and 'free store': stroustrup.com/Programming/17_free_store.ppt, slide 12. 'Heap' was used as a synonym of dynamic memory long ago before C++, since Lisp time (1960s) which used heap data structure for memory allocation. – Alexey Voytenko ...
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How does the MapReduce sort algorithm work?

...wered Aug 11 '16 at 7:44 edwinfj_edwinfj_ 1144 bronze badges add a com...
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Python strptime() and timezones?

...time module documentation says: Return a datetime corresponding to date_string, parsed according to format. This is equivalent to datetime(*(time.strptime(date_string, format)[0:6])). See that [0:6]? That gets you (year, month, day, hour, minute, second). Nothing else. No mention of timezones....
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Catching java.lang.OutOfMemoryError?

... In OpenJdk1.7.0_40, I don't get any error or exception when I run this code. Even I changed the MEGABYTE to GIGABYTE (1024*1024*1024). Is that because of optimizer removes the variable 'byte[] bytes' as it is not used in the rest of the cod...
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How to pass a class type as a function parameter

...lass: AnyClass = type(of: self) Swift 2.x let myClass: AnyClass = object_getClass(self) and you can pass it as paramater later, if you'd like. share | improve this answer | ...
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How do you set, clear, and toggle a single bit?

... << x); will not put the value of bit x into bit unless bit has type _Bool (<stdbool.h>). Otherwise, bit = !!(number & (1 << x)); will.. – Chris Young Nov 16 '08 at 7:49 ...
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How to use ng-repeat for dictionaries in AngularJs?

...t;/span> </div> <div ng-if="!$first"> <img src="/some_image.jpg" alt="some img" title="some img" /> </div> <div ng-repeat-end> ====================== </div> Output would look similar to the following (depending on HTML styling): ==== User details ===...