Is there a tidy way of associating metadata with functions in C++ -

i have codebase many command line options. currently, each command line option lives in table along function pointer run if command passed in on command line.

e.g.

static commandfunction s_commands[] = {    { "command1", func1 },    { "command2", func2 },    { "command3", func3 },    etc... }; 

my problem is, table huge, , functions live elsewhere. prefer string command live right beside each function.

so example:

command_arg("command1") void func1() {     dostuff     ... }  command_arg("command2") void func2() {     dostuff     ... }  command_arg("command3") void func3() {     dostuff     ... } 

is possible?

you can template specialized address of function:

#include <stdio.h>  // in header file. template<void(*fn)()> struct fnmeta {     static char const* const meta; }; // no definition of meta   // some.cc void some() {} template<> char const* const fnmeta<some>::meta = "some";  // another.cc void another() {} template<> char const* const fnmeta<another>::meta = "another";  // main.cc     int main() {     printf("%s\n", fnmeta<some>::meta);     printf("%s\n", fnmeta<another>::meta); } 

the idea above fnmeta<>::meta not defined. however, different translation units (.cc files) can provide definition of specialization of fnmeta<>::meta. way when fnmeta<x>::meta used linker finds appropriate definition of in translation unit.