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Is gcc's __attribute__((packed)) / #pragma pack unsafe?
..., such as SPARC, attempting to access a misaligned int object causes a bus error, crashing the program.
There have also been systems where a misaligned access quietly ignores the low-order bits of the address, causing it to access the wrong chunk of memory.
Consider the following program:
#includ...
What is in your .vimrc? [closed]
... warning if &et is wrong, or we have mixed-indenting
set statusline+=%#error#
set statusline+=%{StatuslineTabWarning()}
set statusline+=%*
set statusline+=%{StatuslineTrailingSpaceWarning()}
set statusline+=%{StatuslineLongLineWarning()}
set statusline+=%#warningmsg#
set statusline+=%{Syntast...
Writing to an Excel spreadsheet
...
I was assuming it used xlwt too, but getting an openpyxl error. For anyone else who gets confused by this - it's all in the filetype you want. The pandas (0.12) docs say "Files with a .xls extension will be written using xlwt and those with a .xlsx extension will be written using o...
How can I use Server.MapPath() from global.asax?
... the request object, the response object. Very useful when you want to log errors, for example
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No Multiline Lambda in Python: Why not?
... returning (y, [1,2,3]) (thus map only gets one parameter, resulting in an error)? Or does it return y? Or is it a syntax error, because the comma on the new line is misplaced? How would Python know what you want?
Within the parens, indentation doesn't matter to python, so you can't unambiguously w...
How to force LINQ Sum() to return 0 while source collection is empty
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I got error when I try without ToList(), since it returns nothing. But the ToList() will make the empty list and it is not giving any error when I do ToList().Sum().
– Mona
Aug 4 '16 at 10:38
...
“using namespace” in c++ headers
...td::vector is used
} // end the scope with }
vector myOtherVector; // error vector undefined
std::vector mySTDVector // no error std::vector is fully qualified
So effectively yes. By limiting the scope of the using declaration its effect only lasts within that scope; it is 'undone' when that ...
Recommended way to embed PDF in HTML?
... in Chrome 9 and Firefox 3.6, but in IE8 it shows the message "Insert your error message here, if the PDF cannot be displayed."
I haven't yet tested older versions of any of the above browsers, though. But here's the code I have anyway in case it helps anyone. This sets the zoom to 85%, removes s...
What is the right way to check for a null string in Objective-C?
...variable) the same as if (variable != nil) in Objective-C
h
I think your error is related to something else as you shouldn't need to do the extra checking.
Also see this related question: Proper checking of nil sqlite text column
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OceanBase使用libeasy原理源码分析：服务器端 - 数据库(内核) - 清泛网 - ...
...Y_OK,并且会为这个请求产生一个响应结果，一个MySQL的
// error packet，将其挂在request->opacket上，当libeasy看到了返回EASY_OK后，就会调用encode方法将opacket给挂在连接的输出缓冲区链表中，随后将其发送出去
handler_.process = ObMySQLCallbac...