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
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 };
Should functions be made extern in header files? Or are they extern by default? For example, should I write this:
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.
With gnu89: /* share.h */ extern inline void f (void); /* function.c */ void f (void) {} /* main.c */ #include \"share.h\"
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
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
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:
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
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:
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