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Why can't variables be declared in a switch statement?
... that the fix of adding an empty statement only works for C99 onwards. In C89, variables must be declared at the start of their enclosing block.
– Arthur Tacca
Dec 12 '19 at 16:40
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How does Java Garbage Collection work with Circular References?
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89
@tangens "Do you have a reference for that?" in a discussion about garbage collection. Best. Pun. Ever.
– Michał Ko...
What is the difference/usage of homebrew, macports or other package installation tools? [closed]
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89
Can't upvote this. It's too snarky, and the snarkiness undermines the information.
– OldPeculier
Feb...
SQL query return data from multiple tables
...ifferent to a number of other tutorials out there which use the older ANSI-89 syntax (and if you are used to 89, may seem much less intuitive - but all I can say is to try it) as it is much easier to understand when the queries start getting more complex. Why use it? Is there a performance gain? The...
【BLE技术内幕】BLE技术揭秘 - 创客硬件开发 - 清泛IT论坛，有思想、有深度
...BLE引入access address概念，用来指明接收者身份，其中，0x8E89BED6这个access address比较特殊，它表示要发给周边所有设备，即广播。如果你要一对一的进行通信（BLE协议将其称为连接），即设备A的数据包只能设备B接收，同样设备B的...
Send string to stdin
... f83e f11e fc3e .^.>'N.>.8.>...>
00000f0: 0000 003f 09ee 013f 89d9 033f 77c2 053f ...?...?...?w..?
0000100: caa8 073f 788c 093f 776d 0b3f be4b 0d3f ...?x..?wm.?.K.?
0000110: 4427 0f3f 0000 113f e8d5 123f f3a8 143f D'.?...?...?...?
0000120: 1879 163f 4e46 183f 8d10 1a3f cad7 1b3f .y....
Should you choose the MONEY or DECIMAL(x,y) datatypes in SQL Server?
...al or numeric as money, such as creating domain.
– gg89
Sep 19 '14 at 5:57
4
I think this is the ...
std::auto_ptr to std::unique_ptr
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Herb Sutter has a nice explanation on GotW #89:
What’s the deal with auto_ptr? auto_ptr is most charitably characterized as a valiant attempt to create a unique_ptr before C++
had move semantics. auto_ptr is now deprecated, and should not be used
in new code....
Getting image dimensions without reading the entire file
..., 0x49, 0x46, 0x38, 0x39, 0x61 }, DecodeGif },
{ new byte[]{ 0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A }, DecodePng },
{ new byte[]{ 0xff, 0xd8 }, DecodeJfif },
};
/// <summary>
/// Gets the dimensions of an image.
/// </summary&...
What's wrong with cplusplus.com?
...etween objects that overlap, the behavior is undefined." (4.11.2.4 in the C89 standard. I don't have a copy to hand of C90, which is what C++03 actually refers to, but they are supposed to differ only in stuff like page numbering.)
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