What are the linkage of the following functions?
- by Derui Si
When I was reading the c++ 03 standard (7.1.1 Storage class specifiers [dcl.stc]), there are some examples as below, I'm not able to tell how the linkage of each successive declarations is determined? Could anyone help here? Thanks in advance!
static char* f(); // f() has internal linkage
char* f()
{ /* ... */ } // f() still has internal linkage
char* g(); // g() has external linkage
static char* g()
{ /* ... */ } // error: inconsistent linkage
void h();
inline void h(); // external linkage
inline void l();
void l(); // external linkage
inline void m();
extern void m(); // external linkage
static void n();
inline void n(); // internal linkage
static int a; // a has internal linkage
int a; // error: two definitions
static int b; // b has internal linkage
extern int b; // b still has internal linkage
int c; // c has external linkage
static int c; // error: inconsistent linkage
extern int d; // d has external linkage
static int d; // error: inconsistent linkage
UPD: Additionally, how can I understand the statement in the standard, "
The linkages implied by successive declarations for a given entity shall agree. That is, within a given scope, each declaration declaring the same object name or the same overloading of a function name shall imply the same linkage. Each function in a given set of overloaded functions can have a different linkage, however."
