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C# 4.0: Can I use a TimeSpan as an optional parameter with a default value?
...meSpan? span = null) {
if (span == null) { span = TimeSpan.FromSeconds(2); }
...
}
I should elaborate - the reason those expressions in your example are not compile-time constants is because at compile time, the compiler can't simply execute TimeSpan.FromSeconds(2.0) and stick the bytes o...
TINYTEXT, TEXT, MEDIUMTEXT, and LONGTEXT maximum storage sizes
...h
-----------+-------------------------------------
TINYTEXT | 255 (2 8−1) bytes
TEXT | 65,535 (216−1) bytes = 64 KiB
MEDIUMTEXT | 16,777,215 (224−1) bytes = 16 MiB
LONGTEXT | 4,294,967,295 (232−1) bytes = 4 GiB
Note that the number of characters that can be ...
Passing an array to a function with variable number of args in Swift
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edited Dec 26 '17 at 14:27
Hasaan Ali
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answered Ju...
深入理解 x86/x64 的中断体系 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...间接取得中断服务例程入口。
在 x86/x64 体系中允许有 256 个中断存在，中断号从 0x00 - 0xff，共 256 个中断，如图：
上面这个图是实模式下的 IVT 表，每个向量占据 4 个字节，中断服务例程入口是以 segment:offset 形式提供的，off...
Add 2 hours to current time in MySQL?
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SELECT *
FROM courses
WHERE DATE_ADD(NOW(), INTERVAL 2 HOUR) > start_time
See Date and Time Functions for other date/time manipulation.
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Why use make over a shell script?
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132
The general idea is that make supports (reasonably) minimal rebuilds -- i.e., you tell it what p...
Can't install PIL after Mac OS X 10.9
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Rearrange columns using cut
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152
For the cut(1) man page:
Use one, and only one of -b, -c or -f. Each LIST is made up of ...
python assert with and without parenthesis
...s optional, you've essentially called assert True when you wrote assert(1==2, "hi").
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