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How to throw an exception in C?

I typed this into google but only found howtos in C++, 11 Answers 11 ...
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sizeof single struct member in C

...se it like this: typedef struct { float calc; char text[255]; int used; } Parent; typedef struct { char flag; char text[member_size(Parent, text)]; int used; } Child; I'm actually a bit surprised that sizeof((type *)0)->member) is even allowed as a constant expression....
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Performing Breadth First Search recursively

... that this is just some kind of thought exercise, or even a trick homework/interview question, but I suppose I could imagine some bizarre scenario where you're not allowed any heap space for some reason [some really bad custom memory manager? some bizarre runtime/OS issues?] while you still have acc...
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PHP: merge two arrays while keeping keys instead of reindexing?

...ow can I merge two arrays (one with string => value pairs and another with int => value pairs) while keeping the string/int keys? None of them will ever overlap (because one has only strings and the other has only integers). ...
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How to wait for 2 seconds?

... --Example 2 DECLARE @Delay2 DATETIME SELECT @Delay2 = dateadd(SECOND, 2, convert(DATETIME, 0)) WAITFOR DELAY @Delay2 A note on waiting for TIME vs DELAY: Have you ever noticed that if you accidentally pass WAITFOR TIME a date that already passed, even by just a second, it will never return? Che...
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How do you perform a left outer join using linq extension methods

... @AbdulkarimKanaan yes - SelectMany flattens two layers of 1-many into 1 layer with an entry per pair – Marc Gravell♦ Jan 5 '18 at 14:29 1 ...
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NULL vs nullptr (Why was it replaced?) [duplicate]

I know that in C++ 0x or NULL was replaced by nullptr in pointer-based applications. I'm just curious of the exact reason why they made this replacement? ...
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Incrementing in C++ - When to use x++ or ++x?

...ack to x, it is only guaranteed that it happens before the next sequence point. 'after processing the current statement' is not strictly accurate as some expressions have sequence points and some statements are compound statements. – CB Bailey Nov 28 '09 at 17:...
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How to get all subsets of a set? (powerset)

... is 2 ** len(A), so that could clearly be seen in the for loop. I need to convert the input (ideally a set) into a list because by a set is a data structure of unique unordered elements, and the order will be crucial to generate the subsets. selector is key in this algorithm. Note that selector ha...
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What is the “right” JSON date format?

...is a non-standard hack/extension. I would use a format that can be easily converted to a Date object in JavaScript, i.e. one that can be passed to new Date(...). The easiest and probably most portable format is the timestamp containing milliseconds since 1970. ...