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HEAD and ORIG_HEAD in Git

...ems with multiple commits, like running 'git am' on the wrong branch or an error in the commits that is more easily fixed by changing the mailbox (e.g. +errors in the "From:" lines). In addition, merge always sets '.git/ORIG_HEAD' to the original state of HEAD so a problematic merge can be remo...
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In Visual Studio C++, what are the memory allocation representations?

...loc(LMEM_FIXED) to mark uninitialised allocated heap memory * 0xBADCAB1E : Error Code returned to the Microsoft eVC debugger when connection is severed to the debugger * 0xBEEFCACE : Used by Microsoft .NET as a magic number in resource files * 0xCCCCCCCC : Used by Microsoft's C++ debugging runtime l...
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Python Infinity - Any caveats?

...back (most recent call last): File "<stdin>", line 1, in ? OverflowError: (34, 'Numerical result out of range') The inf value is considered a very special value with unusual semantics, so it's better to know about an OverflowError straight away through an exception, rather than having an i...
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Is there a difference between copy initialization and direct initialization?

...= (A)1; // OK: explicit cast performs static_cast // B b1 = 1; // error: copy-initialization does not consider B::B(int) B b2(2); // OK: direct-initialization selects B::B(int) B b3 {4, 5}; // OK: direct-list-initialization selects B::B(int, int) // B b4 = {4, 5}; // error:...
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Which characters make a URL invalid?

... This answer isn't bad, but there are some confusions and errors. You initially conflate disallowed and reserved characters (very different things), you make too much of the distinction between "unwise" characters and other disallowed characters (dropped in RFC 3986 and syntacticall...
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What are the disadvantages of using persistent connection in PDO

... happened seemingly at random. It turned out that those once-a-week fatal errors that our users diligently squeezed out of our app were leaving locked tables, abandoned transactions and other unfortunate wonky states. This sob-story has a point: It broke things that we never expected to break, all...
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Set up DNS based URL forwarding in Amazon Route53 [closed]

...ll probably edit the <Hostname> in your Redirection Rules to fix the error. Unfortunately, when you try to click the link again, you'll most likely end up being redirected back to the wrong address! Even though you fixed the <Hostname> entry, your browser is caching the previous (incorre...
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Entity Framework and Connection Pooling

... I took your advise and removed the singelton. Now I get another error: stackoverflow.com/questions/14795899/… – Elad Benda Feb 10 '13 at 9:43 ...
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Win32汇编--使用MASM - C/C++ - 清泛网 - 专注C/C++及内核技术

...寄存器做了如下定义: ASSUME cs:FLAT,ds:FLAT,ss:FLAT,es:FLAT,fs:ERROR,gs:ERROR 也就是说,CS,DS,SS和ES段全部使用平坦模式,FS和GS寄存默认不使用,这时若在源程序中使用FS或GS,在编译时会报错。如果有必要使用它们,只需在使用前用...
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When should I use C++14 automatic return type deduction?

...calling foobar on an instance of either X or Y will trigger a compile-time error. share | improve this answer | follow | ...