int vsprintf(char *buf,const char *fmt,va_list ap){
int vsprintf(char *buf,const char *fmt,pthread_va_list ap){
int vsprintf(char *buf,const char *fmt,va_list ap){  struct s_strargument arg;  arg.next = buf;  arg.last = 0;  *buf = 0;  return vxprintf(sout,&arg,fmt,ap);}