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Why doesn't .NET/C# optimize for tail-call recursion?
...ate given recent JIT changes). Note that the CLR changes for 4.0 the x86, x64 and ia64 will respect it.
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Timer function to provide time in nano seconds using C++
...// x
All this clock does is count CPU cycles and store it in an unsigned 64-bit integer. You may need to tweak the assembly language syntax for your compiler. Or your compiler may offer an intrinsic you can use instead (e.g. now() {return __rdtsc();}).
To build a clock you have to give it the r...
HTTP Error 403.14 - Forbidden - The Web server is configured to not list the contents of this direct
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NASSER
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answered Aug 16 '14 at 15:09
user3943211user3943...
what's the correct way to send a file from REST web service to client?
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I don't recommend encoding binary data in base64 and wrapping it in JSON. It will just needlessly increase the size of the response and slow things down.
Simply serve your file data using GET and application/octect-streamusing one of the factory methods of javax.ws.rs.c...
通过 ulimit 改善系统性能 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
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设置硬资源限制，一旦设置不能增加。
ulimit – Hs 64；限制硬资源，线程栈大小为 64K。
-S
设置软资源限制，设置后可以增加，但是不能超过硬资源设置。
ulimit – Sn 32；限制软资源，32 个文件描述符。
-a...
How does one make random number between range for arc4random_uniform()?
...means of converting to a common integer type. In this example I'm using Int64 which is large enough for my purposes, but if you're using unsigned integers or have an Int128 or Int256 custom type you should use those.
public func randomNumber<T : SignedInteger>(inRange range: ClosedRange<T&...
Google Authenticator implementation in Python
...d with incorrect value of secret key (it must be correct parameter for base64.b32decode() function).
Below I post full working solution with explanation on how to use it.
Code
The following code is enough. I have also uploaded it to GitHub as separate module called onetimepass (available here: ht...
PHP & mySQL: Year 2038 Bug: What is it? How to solve it?
...for a 32-bit signed integer.
How do we solve it?
Use long data types (64 bits is sufficient)
For MySQL (or MariaDB), if you don't need the time information consider using the DATE column type. If you need higher accuracy, use DATETIME rather than TIMESTAMP. Beware that DATETIME columns do not s...
How do I read text from the (windows) clipboard from python?
... be tkinter instead of Tkinter. Othwise it did not work on my python 3.7.3 64bit win10.
– jerik
Apr 29 '19 at 7:51
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Create a shortcut on Desktop
...ony Peterson
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answered Feb 5 '11 at 20:30
Rustam IrzaevRustam Irzaev
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