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Difference between 'struct' and 'typedef struct' in C++?
...
If you just said:
struct Foo { ... };
Foo x;
you would get a compiler error, because Foo is only defined in the tag namespace.
You'd have to declare it as:
struct Foo x;
Any time you want to refer to a Foo, you'd always have to call it a struct Foo. This gets annoying fast, so you can add...
Batch file. Delete all files and folders in a directory
...to (rmdir "%%i" /s/q 2>NUL || del "%%i" /s/q >NUL ) to suppress the error and deletion messages
– Carl Walsh
Sep 6 '17 at 20:31
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sho...
The imported project “C:\Microsoft.CSharp.targets” was not found
I got this error today when trying to open a Visual Studio 2008 project in Visual Studio 2005:
16 Answers
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error LNK2019: 无法解析的外部符号_socket，该符号在函数 中被引用 - c++1...
1>NetClient.obj : error LNK2019: 无法解析的外部符号 _closesocket@4，该符号在函数 _main 中被引用
1>NetClient.obj : error LNK2019: 无法解析的外部符号 _inet_ntoa@4，该符号在函数 _main 中被引用
1>NetClient.obj : error LNK2019: 无法解析的外部符...
What's the point of const pointers?
...ugh it doesn't change the functionality, adding const generates a compiler error when you're doing things you didn't mean to do. Imagine the following typo:
void foo(int* ptr)
{
ptr = 0;// oops, I meant *ptr = 0
}
If you use int* const, this would generate a compiler error because you're chan...
Script not served by static file handler on IIS7.5
...c App Pool, then set that pool for framework 4.0. Now I get the following error:
23 Answers
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“405 method not allowed” in IIS7.5 for “PUT” method
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Often this error is caused by the WebDAV module that try to handle this kind of requests. An easy solution is to remove it from modules and from handlers of the system.webServer section just inside your web.config file.
Here a configur...
How to configure MongoDB Java driver MongoOptions for production use?
...mongodb.DBPortPool$SemaphoresOut: Out of semaphores to get db
connection" error and by increasing the connections/multiplier I was able to solve that problem. I'm looking for links to or your best practices in configuring these options for production.
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Error 908: Permission RECEIVE_SMS has been denied. - App Inventor 2 中...
...version, this functionality simply won’t work or will raise a permission error.The companion is only for live testing, the version you use has no implication for what will happen when you build an app. When you build an app, the buildserver analyzes the code and looks to see if it meets any of the...
What values should I use for CFBundleVersion and CFBundleShortVersionString?
...merically exceed the bundle version of your previous app or it will get an error when submitting to the App Store. See stackoverflow.com/questions/4933093/….
– Phil
Sep 12 '14 at 21:32
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