c++ - Log(PCTSTR format,...) and Log(PCTSTR text): error C2668 ambiguous call to overloaded function -

i have following defined:

void logmessage(pctstr text); void logmessage(pctstr format, ...); 

if want call function 1 parameter, following error message:

source.cpp(10): error c2668: 'log' : ambiguous call overloaded function   'void log(pctstr,...)' or 'void log(pctstr)'   while trying match argument list '(const wchar_t [42])' 

is possible static_cast explizite use first version? or haw can solved, except renaming first or second function?

how following? haven't tested on vc++ (which seems platform of choice) version using implements enough c++11 work.

#include <iostream> #include <cstdio> #include <cstdarg>  void logmessageworker(char const* format, ...) {     // 1k should enough anyone... ;)     char buf[1024] = { 0 };      // version of vsnprint called should null terminate correctly , doesn't     // strictly need -1 believe implementation included     // vc++ leaves lot desired may need tweak this.     va_list args;     va_start (args, format);     vsnprintf (buf, sizeof (buf) - 1, format, args);     va_end (args);      std::cout << "logmessage: " << buf << std::endl; }  template <class... arguments> void logmessage(char const* format, arguments... arguments) {     logmessageworker (format, std::forward<arguments>(arguments)...); }  void logmessage(char const* text) {     logmessageworker ("%s", text); }  int main(int argc, char **argv) {     logmessage ("the test starting...");      (int = 0; < 3; i++)         logmessage ("this test #%d", i);      logmessage ("this contains % character , still works (%d-%d-%d-%d)");      return 0; }