Why wont extern link to a static variable?

Posted by Jared P on Stack Overflow See other posts from Stack Overflow or by Jared P
Published on 2010-05-15T21:08:58Z Indexed on 2010/05/15 21:14 UTC
Read the original article Hit count: 188

Filed under:

Why does extern int n not compile when n is declared (in a different file) static int n, but works when declared int n? (Both of these declarations were at file scope.) Basically, why is int n in file scope not the same as static int n in the same scope? Is it only in relation to extern? If so, what about extern am I missing?

Related posts about extern

How does an "extern C" declaration work?

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm taking a programming languages course and we're talking about the "extern C" declaration. How does this declaration work at a deeper level other than "it interfaces C and C++"? How does this affect the bindings that take place in the program as well? >>> More
extern "C" has no effect in msvc++ 9.0

as seen on Stack Overflow - Search for 'Stack Overflow'
I manage project for JNI for both compilers: MSVC++ 8.0 and 9.0, my cpp file contains following implementation: extern "C" { JNIEXPORT jlong JNICALL Java_context_ServiceProviderContext_StartServiceProvider (JNIEnv * env, jclass, jstring jspath){ ..... } With help of depends.exe… >>> More
Problem with extern keyword in C++

as seen on Stack Overflow - Search for 'Stack Overflow'
What's the difference between the following two declarations? I thought they were equivalent, but the first sample works, and the second does not. I mean it compiles and runs, but the bitmap display code shows blank. I have not stepped through it yet, but am I missing something obvious? GUI_BITMAP… >>> More
How does extern work in c++?

as seen on Stack Overflow - Search for 'Stack Overflow'
This is from the <iostream>: namespace std { extern istream cin; ///< Linked to standard input extern ostream cout; ... It seems by using extern the data types defined in other namespaces will just be available? >>> More
The extern alias 'xxx' was not specified in a /reference option

as seen on Stack Overflow - Search for 'Stack Overflow'
I have two assemblies that unfortunately define the same type in the same namespace. I'm trying to use a an extern alias to work around the problem. In the Visual Studio IDE I have set the "Aliases" property of the reference to my alias. This is supposed to change the C# compiler command line to… >>> More

Developer IT

Why wont extern link to a static variable? - Developer IT

Why wont extern link to a static variable?

extern

c

static

Related posts about extern

How does an "extern C" declaration work?

extern "C" has no effect in msvc++ 9.0

Problem with extern keyword in C++

How does extern work in c++?

The extern alias 'xxx' was not specified in a /reference option

Related posts about c

Categories cloud