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Any reason why scala does not explicitly support dependent types?

...t types and I think it is possible to express almost all the features of such languages as Epigram or Agda in Scala, but I'm wondering why Scala does not support this more explicitly like it does very nicely in other areas (say, DSLs) ? Anything I'm missing like "it is not necessary" ? ...
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Why is a round-trip conversion via a string not safe for a double?

Recently I have had to serialize a double into text, and then get it back. The value seems to not be equivalent: 3 Answers ...
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Changing the default folder in Emacs

I am fairly new to Emacs and I have been trying to figure out how to change the default folder for C-x C-f on start-up. For instance when I first load Emacs and hit C-x C-f its default folder is C:\emacs\emacs-21.3\bin , but I would rather it be the desktop. I believe there is some way to custo...
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Combine two data frames by rows (rbind) when they have different sets of columns

Is it possible to row bind two data frames that don't have the same set of columns? I am hoping to retain the columns that do not match after the bind. ...
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剖析程序的内存布局 - C/C++ - 清泛网 - 专注C/C++及内核技术

...存沙盘中。这个沙盘就是虚拟地址空间(virtual address space),在32位模式下它总是一个4GB的内存地址块。这些虚拟地址通过页表(page table)映射到物理内存,页表由操作系统维护并被处理器引用。每一个进程拥有一套属于它自己...
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In Flux architecture, how do you manage Store lifecycle?

I'm reading about Flux but the example Todo app is too simplistic for me to understand some key points. 3 Answers ...
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FAT32系统中长文件名的存储 - C/C++ - 清泛网 - 专注C/C++及内核技术

...0(卷标) 00010000(子目录) 00100000(归档) 0xC 1 系统保留 0xD 1 创建时间的10毫秒位 0xE~0xF 2 文件创建时间 0x10~0x11 2 文件创建日期 0x12~0x13 2 文件最后访问日期 0x14~0x15 2 ...
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How to use C++ in Go

In the new Go language, how do I call C++ code? In other words, how can I wrap my C++ classes and use them in Go? 12 Answ...
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与复制构造函数相关的错误.例如:0x77D9FCAA (ntdll.dll) (prog31.exe 中)处...

与复制构造函数相关的错误.例如:0x77D9FCAA (ntdll.dll) (prog31.exe 中)处有未经处理的异常: 0xC0000374:堆已损坏。 (参数: 0x77DC6668)这种错误可能就是与内存有关的释放问题。这里的错误示例代码主要是为了说明复制构造函数,尤其是含有...
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Difference between GIT and CVS

What is the difference between Git and CVS version control systems? 5 Answers 5 ...