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Why is a round-trip conversion via a string not safe for a double?

...e mathematically equal (like one with a trailing zero, or let's say 2.1e-1 vs. 0.21) should always give identical results, and strings that are mathematically ordered should give results consistent with the ordering. – gnasher729 Jun 19 '14 at 12:56 ...
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C# Object Pooling Pattern implementation

... This is a great answer. After C#6 & VS2015 is RTM I'll likely make this the accepted answer as it is clearly the best of all if it's so tuned its used by Rosyln itself. – Chris Marisic Jun 5 '15 at 15:34 ...
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Why shouldn't I use mysql_* functions in PHP?

... community wiki 21 revs, 13 users 52%Quentin 292 ...
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Can someone explain the right way to use SBT?

...mantics for building the rest of the business logic of tasks.  Commands vs Tasks Commands are a lazy way out of the DAG. Using commands it is easy to mutate the build state and serialise tasks as you wish. The cost is we loose parallelisation and deduplication of tasks provided by DAG, which way...
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What does multicore assembly language look like?

...e.g. with: cld mov $init_len, %ecx mov $init, %esi mov 0x1000, %edi rep movsb .code16 init: xor %ax, %ax mov %ax, %ds /* Do stuff. */ hlt .equ init_len, . - init Using a linker script is another possibility. The delay loops are an annoying part to get working: there is no super s...
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LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...认值(缺省值)。这些设置如果不用“freeze”命令保存到配置文件lingo.cnf中,则退出LINGO系统后这些设置就无效了。 索引 参数名 缺省值 简要说明 1 ILFTOL 0.3e-5 初始线性可...
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How does a hash table work?

...ed circumstances: when bucket sizes are of the order of memory page sizes (vs. say int keys at 1-in-1000 sparseness and 4k pages = most pages touched), and when the OS treats all-0 pages efficiently (so all-unused-bucket pages don't need backing memory), when address space is plentiful.... ...
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The case against checked exceptions

...uish good checked exceptions from bad: Out of client's control or Closed vs Open: Checked exceptions should only be used where the error case is out of control of both the API and the client programmer. This has to do with how open or closed the system is. In a constrained UI where the client pr...
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Unicode equivalents for \w and \b in Java regular expressions?

...cleared up when Unicode clarified grapheme clusters by discussing extended vs legacy grapheme clusters. The old definition of a grapheme cluster, wherein \X stands for a non-mark followed by any number of marks, is problematic, because you should be able to describe all files as matching /^(\X*\R)*\...
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Node.js Best Practice Exception Handling

... community wiki 23 revs, 8 users 98%balupton 5 ...