#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>

typedef struct ABC {
  float a;
  uint32_t b;
  uint32_t c;
} ABC;
#define ABC_abc (ABC){ .a = 1.0, .b = 2, .c = 3 }
#define ABC_bac (ABC){ .a = 1.0, .b = 2, .c = 3 }
#define ABC_cba (ABC){ .a = 1.0, .b = 2, .c = 3 }

typedef struct BAC {
  uint32_t b;
  float a;
  int32_t c;
} BAC;
#define BAC_abc (BAC){ .b = 1, .a = 2.0, .c = 3 }
#define BAC_bac (BAC){ .b = 1, .a = 2.0, .c = 3 }
#define BAC_cba (BAC){ .b = 1, .a = 2.0, .c = 3 }

void root(struct ABC a1, struct BAC a2);