C技巧：结构体参数转成不定参数

http://coolshell.cn/articles/2801.html

#include <stdio.h>
 
#define func(...) myfunc((struct mystru){__VA_ARGS__})
 
structmystru { constchar *name; intnumber; };
 
voidmyfunc(structmystru ms )
{
  printf("%s: %d\n", ms.name ?: "untitled", ms.number);
}
 
intmain(intargc, char**argv)
{
  func("three", 3);
  func("hello");
  func(.name = "zero");
  func(.number = argc, .name = "argc",);
  func(.number = 42);
  return0;
}