int printf(const char*, ...); #define myassert(x) \    printf("%s:%d: %s : \"%s\"\n", __FILE__,__LINE__,(x)?"ok":"error",#x) enum{ in = 0}; int main_1(){    {        myassert(!in);        if(sizeof(enum{in=1})) myassert(in);        myassert(!in); //OOPS    }    {        myassert(!in);        switch(sizeof(enum{in=1})) { default: myassert(in); }        myassert(!in); //OOPS    }    {        myassert(!in);        while(sizeof(enum{in=1})) { myassert(in); break; }        myassert(!in); //OOPS    }    {        myassert(!in);        do{ myassert(!in);}while(0*sizeof(enum{in=1}));        myassert(!in); //OOPS    }     {        myassert(!in);        for(sizeof(enum{in=1});;){ myassert(in); break; }        myassert(!in); //OK    }    {        myassert(!in);        for(;;sizeof(enum{in=1})){ myassert(in); break; }        myassert(!in); //OK    }    {        myassert(!in);        for(;sizeof(enum{in=1});){ myassert(in); break; }        myassert(!in); //OK    }    return 0;} /* --------------------------------------------- */int main_2(){  char c = 'a';  void func1(char c); /* param 'c' must not shadow local 'c' */  func1(c);  return 0;} void func1(char c){    myassert(c == 'a');} struct st { int a; }; /* --------------------------------------------- */int main_3(){  struct st func(void);  struct st st = func(); /* not an 'incompatible redefinition' */  myassert(st.a == 10);  return 0;} struct st func(void){  struct st st = { 10 };  return st;} /* --------------------------------------------- *//* func* 'md' must not be shadowed by param 'md' */static void f4(char *(*md)(char *md)){   (*md)("test");}static char *a4(char *a){    int strcmp();    myassert(!strcmp(a, "test"));    return a;} int main_4(){    f4(a4);    return 0;} /* --------------------------------------------- */int a5[3], b5[];int f5(void);int main_5(){    extern int a5[3], b5[3];    a5[2]=10, b5[2]=4;    myassert(f5() == 10 + 4);    return 0;}int f5(void){    return a5[2]+b5[2];}int b5[3]; /* --------------------------------------------- */static int f6(int);int i6 = 11; int main_6(){    {        int i6 = 33, f6 = 44;        myassert(i6 == 33 && f6 == 44);        {            int f6(int);            extern int i6;            myassert(i6 == 11 && f6(22) == 22);        }        myassert(i6 == 33 && f6 == 44);    }    myassert(i6 == 11 && f6(22) == 22);    return 0;} int f6(int x){    return x;} /* --------------------------------------------- */ #if defined __TINYC__ \    ? !defined __leading_underscore \    : !(defined __APPLE__ || defined _WIN32)# define _#else# define _ "_"#endif struct xx7 { int a, b; }; void f7(){    struct xx7 { int c; } x;    {        extern struct xx7 { int a, b; } x __asm__(_"z7");        x.a = 12;        struct xx7 y = { 0,0 };    }    struct xx7 y = { 90 };    x.c = 78;    printf("xx7 (1) : %d %d\n", x.c, y.c);} int main_7(){    f7();    extern struct xx7 y __asm__(_"z7");    printf("xx7 (2) : %d %d\n", y.a, y.b);    return 0;}  struct xx7 z7 = { 0, 34 }; /* --------------------------------------------- */int main(){    main_1();    main_2();    main_3();    main_4();    main_5();    main_6();    main_7();    return 0;}