C# 相当于 C++ 的 #region
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Equivalent of #region for C++
提问by SirYakalot
What's the C++ equivalent of #region for C++ so I can put in custom code collapsible bits and make my code a little easier to read?
C++ 中#region 的C++ 等价物是什么，以便我可以放入自定义代码可折叠位并使我的代码更易于阅读？
采纳答案by Dr. ABT
The Region keywordis IDE specific and affects rendering in Visual Studio. The nearest equivalent is #pragma Regionwhich is applicable to Visual Studio only .
该地区的关键字是IDE具体和Visual Studio中会影响渲染。最接近的等效项是#pragma Region，它仅适用于 Visual Studio。
Code example from MSDN
来自MSDN 的代码示例
// pragma_directives_region.cpp
#pragma region Region_1
void Test() {}
void Test2() {}
void Test3() {}
#pragma endregion Region_1
int main() {}
回答by Oded
There is no equivalent. The #regionfeatureis part of the C# specification.
没有等价物。该#region功能是 C# 规范的一部分。
C++ has no such equivalent. You could possibly mimic it with specially formatted comments, but this would be editor specific.
C++ 没有这样的等价物。您可以使用特殊格式的注释来模仿它，但这将是特定于编辑器的。
For Visual Studio you can use:
对于 Visual Studio，您可以使用：
#pragma region name
...
#pragma endregion name
回答by Thanatos
There is no equivalent.
没有等价物。
Most good editors or IDEs will let you collapse functions, if not also if/else/while/for/etc.
大多数优秀的编辑器或 IDE 都可以让您折叠功能，如果不能，也可以if/ else/ while/ for/ 等。
回答by Firedragon
There isn't an equivalent in C++. However IDEs should be able to collapse sections.
C++ 中没有等价物。但是 IDE 应该能够折叠部分。
It is also possible to use something like this:
也可以使用这样的东西：
#pragma region
#pragma endregion A comment about the region.
But probably not very portable
但可能不是很便携
回答by Jon Purdy
In addition to #pragma region…#pragma endregionfor Visual Studio, many IDEs support the following syntax for regions in any {}-delimited, //-commented language:
除了#pragma region……#pragma endregion对于 Visual Studio，许多 IDE 支持以下任何{}-delimited、//-commented 语言区域的语法：
//{ Region header text.
…
//}
Notable examples include Code::Blocksand FlashDevelop, and any other editor that uses the Scintillaediting component, such as Notepad++, Geany, Komodo Edit, and many more.
值得注意的示例包括Code::Blocks和FlashDevelop，以及任何其他使用Scintilla编辑组件的编辑器，例如Notepad++、Geany、Komodo Edit等等。
回答by Viktor Latypov
回答by Selmar
The first answer from this questionmentions another alternative. It is not applicable in all situations, though.
这个问题的第一个答案提到了另一种选择。但是，它并不适用于所有情况。
Method:Use {...} instead which natively supports code collapsing in Visual Studio.
方法：使用 {...} 代替它本身支持 Visual Studio 中的代码折叠。
Enable option: Tools -> Options -> Text Editor -> C/C++ -> Formatting -> OutLine Statement Blocks -> True.
Put your in different scopes {...}, then it will collapse the code in different scopes:
启用选项：工具 -> 选项 -> 文本编辑器 -> C/C++ -> 格式 -> OutLine 语句块 -> True。
把你的在不同的范围内{...}，然后它会在不同的范围内折叠代码：
回答by user4351871
C++Builderdoessupport this, but you must declare the region as:
C++Builder确实支持这一点，但您必须将区域声明为：
#pragma region BLAH
.....
#pragma end_region
You mustuse end_region for C++Builder, but it willwork, and it willcollapse the region!
您必须对 C++Builder 使用 end_region，但它会起作用，并且会折叠区域！
回答by Drout
I've been using
我一直在用
#ifndef ANY_NAME_FOR_THIS_REGION
...
#endif
for several projects during the last couple of years and that suits me (including collapsible blocks). as an addition, i can disable the block using #define ANY_NAME_FOR_THIS_REGION just above it.
过去几年的几个项目，这适合我（包括可折叠块）。另外，我可以使用它上方的 #define ANY_NAME_FOR_THIS_REGION 禁用该块。
回答by Sauron
Kate, KDevelop and all other text editors and IDEs which use Katepartsupports marking regions with //BEGINand //ENDmarkers.
Kate、KDevelop 和所有其他使用Katepart 的文本编辑器和 IDE支持使用//BEGIN和//END标记标记区域。
// BEGIN GPT entity types
#define GPT_ENT_TYPE_UNUSED \
{0x00000000,0x0000,0x0000,0x00,0x00,{0x00,0x00,0x00,0x00,0x00,0x00}}
#define GPT_ENT_TYPE_EFI \
{0xc12a7328,0xf81f,0x11d2,0xba,0x4b,{0x00,0xa0,0xc9,0x3e,0xc9,0x3b}}
#define GPT_ENT_TYPE_MBR \
{0x024dee41,0x33e7,0x11d3,0x9d,0x69,{0x00,0x08,0xc7,0x81,0xf3,0x9f}}
// END
You will be able to collapse a region defined in such way.
您将能够折叠以这种方式定义的区域。
