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POGet directory separator char on Windows? ('\', '/', etc.)
 

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    <p>tl;dr: How do I ask Windows what the current directory separator character on the system is?</p> <hr> <p>Different versions of Windows seem to behave differently (e.g. <code>\</code> and <code>/</code> both work on the English versions, <a href="http://blogs.msdn.com/b/oldnewthing/archive/2005/10/14/481044.aspx">¥ is apparently on the Japanese version, ₩ is apparently on the Korean version</a>, etc...</p> <p>Is there any way to avoid hard-coding this, and instead ask Windows at run time?</p> <h3>Note:</h3> <p>Ideally, the solution should <strong><em>not</em></strong> depend on a high-level DLL like <code>ShlWAPI.dll</code>, because lower-level libraries also depend on this. So it should really either depend on <code>kernel32.dll</code> or <code>ntdll.dll</code> or the like... although I'm having a trouble finding <em>anything</em> at all, whether at a high level or at a low level.</p> <h2>Edit:</h2> <p>A little experimentation told me that it's the Win32 subsystem (i.e. <code>kernel32.dll</code>... or is it perhaps <code>RtlDosPathNameToNtPathName_U</code> in <code>ntdll.dll</code>? not sure, didn't test...) which converts forward slashes to backslashes, not the kernel. (Prefixing <code>\\?\</code> makes it impossible to use forward slashes later in the path -- and the NT native user-mode API also fails with forward slashes.)</p> <p>So apparently it's not quite "built into" Windows, but rather just a compatibility feature -- which means you can't just blindly substitute slashes instead of backslashes, because any program which randomly prefixes <code>\\?\</code> to paths will automatically break on forward slashes.</p> <p>I have mixed feelings on what conclusions to make regarding this, but I just thought I'd mention it.</p> <p><sub>(I tagged this as "path separator" even though that's technically incorrect because the path separator is used for separating <em>paths</em>, not directories (<code>;</code> vs. <code>\</code>). Hopefully people get what I meant.)</sub></p>
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    1. COThe separator is the same. It's always `0x5c`. The difference is the code page being used to *display* the character. In ANSI code page, `0x5c` is a backslash. In the Japanese code page 932, 0x5c is the yen sign, and on the Korean code (949) page it's the won sign.
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    2. COI agree with vcsjones, the documentation for [Path handling](http://msdn.microsoft.com/en-us/library/aa365247(v=VS.85).aspx#paths) mentions that it's a backslash (0x5c) that separates directories. In fact, if you switch your machine to the Japanese locale, pressing the \ key will produce ¥ and not \.
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    3. CO@vcsjones, Joshua: I didn't realize that was the case, thanks for pointing it out. However, I still need a mechanism to detect whether `/` (or some other character) is a path separator or not -- it appears to be so on Windows 7 but not on XP, and I would rather avoid hard-coding this rule if possible.
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