extern
Is there a way to get an extern variable (or function) by name
I thought I read about a C standard library function recently that was able to return a pointer to any extern variable whose name was passed to it as a const char *.I think that it works via linker sy[详细]
2023-01-13 14:48 分类：问答How to correctly write declarations of extern arrays (and double arrays) in C's header files?
Suppose I want to share a global array of data across my program, for example: int lookup_indexes[] = { -1, 1, 1, -1, 2, 1, 1, -2, 2, 2, -1, 1, 1, 2 };[详细]
2023-01-10 06:02 分类：问答Should functions be made "extern" in header files?
Should functions be made extern in header files? Or are they extern by default? For example, should I write this:[详细]
2023-01-09 17:17 分类：问答How to create table (array) with extern values?
I would like to create a static (file scope) table of data pointer, data size and data version.The problem is that the data are in external files, but constants in the extern files.[详细]
2023-01-08 18:58 分类：问答How to implement and share an inlined function using C99?
With gnu89: /* share.h */ extern inline void f (void); /* function.c */ void f (void) {} /* main.c */ #include \"share.h\"[详细]
2023-01-08 06:37 分类：问答How to declare extern typedef struct?
I have two c files, foo.c with the functionality and test_foo.c which test the functions of foo.c. I开发者_运维技巧s there a way to access the struct typedef BAR I defined in foo.c in test_foo.c with[详细]
2023-01-07 10:40 分类：问答iPhone, check for existence of constant
How can you check if a constant is set at runtime? For instance, in iOS 4, UIApplicationDidEnterBackgroundNotification is available, but when running on iOS 3 it开发者_JAVA技巧 will through an error i[详细]
2023-01-05 09:48 分类：问答extern variables in static library, using Objective-C
I\'ve built a static library, to be linked in my iPhone apps. This library uses some global variables and functions, like in C. My problem is, when using for example:[详细]
2023-01-05 04:45 分类：问答Is there a way to make a function global to the library and to those who include/link the library?
I\'m a bit confused now. I thought that when you used extern on a function, it would become global to everything, but it doesn\'t s开发者_StackOverflow社区eem so... What I want right now, is to have s[详细]
2023-01-04 22:17 分类：问答extern "C" DLL: Debug is OK, Release throws Error C2059
I\'ve got a DLL that I\'ve created as a C++ Win32 application. To prevent name mangling in my DLL, I have used the EXPORT definition defined below:[详细]
2023-01-04 03:46 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......