void-pointers

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Problem using void pointer as a function argument

I can\'t understand this result... The code: void foo(void * key, size_t key_sz) { HashItem *item = malloc(sizeof(HashItem));[详细]

2022-12-26 12:34 分类：问答
Equivalent to window.setTimeout() for C++

In javascript there\'s this sweet, sweet function window.setTimeout( func, 1000 ) ; which will asynchronously invoke func after 1000 ms.[详细]

2022-12-24 15:54 分类：问答
How can I transform XML to invalid XML using XSLT?

I need to transform a valid XML document to the OFX v1.0.2 format.This format is more or less XML, but it\'s technically invalid and therefore cannot be parsed as XML.[详细]

2022-12-24 13:29 分类：问答
multiple inheritance: unexpected result after cast from void * to 2nd base class

My program needs to make use of void* in order to transport data or objects in dynamic invocation situation, so that it can reference data of arbitrary types, even primitive types. However, I recently[详细]

2022-12-22 02:05 分类：问答
What is the correct way to cast when using ATL and IUnknownPtr?

During the modification of an existing ATL COM object I came across an article from the \"The Old New Thing\" blog called \"The ways people mess up IUnknown::QueryInterface\" and there was a discussio[详细]

2022-12-22 01:55 分类：问答
A few questions about my modular code using void* as dynamic data type in C

A few days ago I posted this question and everyone suggested me to use void*, which I did. I think some of them also pointed a few things that I would need to take care of but I\'m not sure what exact[详细]

2022-12-21 23:32 分类：问答
Ncurses User Pointer

I\'m trying to learn ncurses, and I\'m reading the terrific guide here, but the example at user pointers does not compile. I get this error when I try to compile.[详细]

2022-12-19 09:39 分类：问答
云南大理有哪些地方值得一去？

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2022-12-19 02:59 分类：问答
Why some method declarations in the UITableViewDataSource protocol are preceded by "tableView:(UITableView *)tableview?

The formulation of the question may be confusing. I do understand why it is useful for a method like cellForRowAtIndexPath to receive a pointer the relevant UITableView.[详细]

2022-12-18 21:53 分类：问答
C++: casting to void* and back

* ---Edit - now the whole sourse* When I debug it on the end, \"get\" and \"value\" have different values! Probably, I convert to void* and back to User the wrong way?[详细]

2022-12-17 04:20 分类：问答