extern

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How to name a constant in Objective-C?

What\'s the naming convention for constants in Objective-C (or most widely used way to name them)? Is there a different criteria for e开发者_高级运维xtern constants?[详细]

2023-01-22 22:23 分类：问答
Defining extern "C" function in C#

I have an ActiveX control written in C# and working when run in an ActiveX compatible program (CoDeSys). The problem I\'ve come across is that in order to allow CoDeSys to interact with the ActiveX co[详细]

2023-01-22 06:37 分类：问答
syntax error - token ";" inserted before "variable name"

I\'m programming in C.I\'m getting the following error: ctc E208: [\"..\\..\\ECB\\Include\\ecb.h\" 4/11] syntax error - token \";\"[详细]

2023-01-20 18:19 分类：问答
Why would you use `extern void my_func();` rather than including `my_utils.h`?

I\'m working on some code I didn\'t write and noticed that there are many extern void my_func();. My understanding is that extern in for global variables, not for functions.[详细]

2023-01-19 04:22 分类：问答
extern "C" (C linkage) by default

Question Do GCC, MSVC, or Clang, or some combination support setting linkage to default to C? Background[详细]

2023-01-18 23:39 分类：问答
Using c99 in C++'s `extern "C"` blocks

I would like to have a function written in C, but callable from C++ which takes a restricted pointer. This is only available in c99, so g++ doe开发者_如何学Gosn\'t like it, even in extern \"C\" blocks[详细]

2023-01-15 22:51 分类：问答
C++ accessing variables from .CPP files

I\'m a little fuzzy on how variable access between .cpp files works. For instance: main.cpp in开发者_开发百科t main()[详细]

2023-01-15 18:37 分类：问答
undefined reference when using extern

I have the following setup (hopefully this is not too bare an example): A.h typedef std::map<unsigned int, float> MyClass;[详细]

2023-01-15 16:56 分类：问答
C++ Extern / Multiple Definitions

I am trying to interface to Ada in C++ using externs. What is the difference between these two implementations?[详细]

2023-01-14 15:05 分类：问答
Debug class, c++, linker error

I am trying to write a debug class for a project I am working on, and I do not want to have to pass a debug object around so I was trying to do it this way. However, I do not know why my compiler or l[详细]

2023-01-14 06:52 分类：问答