#include <stdio.h>
#include "base.h"
typedef unsigned int uint;
typedef void (*callback)(void);
struct S {
int a;
int b;
const char *c;
callback cb;
};
union U {
char test[4];
int a;
};
enum E {
A, B,
C,
};
extern int external_var;
const char *external_function_declaration(const void *ptr);
int main(void) {
int a = 0;
struct S s;
struct S *sp;
union U u;
printf("Hello, World!\n");
s.cb();
sp->cb();
if (a) {
printf("a\n");
} else if (sp) {
printf("b\n");
} else {
printf("c\n");
}
for (int a = 0; a < 10; a++) {
printf("for\n");
}
while (a++ < 100) {
printf("while\n");
}
do {
printf("do-while\n");
} while (0);
switch (a) {
case 1:
return 0;
default:
return -1;
}
return 0;
}