diff --git a/tcctest.c b/tcctest.c
new file mode 100644
index 0000000..2bec2ef
--- /dev/null
+++ b/tcctest.c
@@ -0,0 +1,1280 @@
+/*
+ * TCC auto test program
+ */
+#include <tcclib.h>    
+
+/* Unfortunately, gcc version < 3 does not handle that! */
+//#define ALL_ISOC99
+
+/* only gcc 3 handles _Bool correctly */
+//#define BOOL_ISOC99
+
+//#define C99_MACROS
+
+void string_test();
+void expr_test();
+void macro_test();
+void scope_test();
+void forward_test();
+void funcptr_test();
+void loop_test();
+void switch_test();
+void goto_test();
+void enum_test();
+void typedef_test();
+void struct_test();
+void array_test();
+void expr_ptr_test();
+void bool_test();
+void expr2_test();
+void constant_expr_test();
+void expr_cmp_test();
+void char_short_test();
+void init_test(void);
+void compound_literal_test(void);
+int kr_test();
+void struct_assign_test();
+void cast_test(void);
+void bitfield_test(void);
+void c99_bool_test(void);
+void float_test(void);
+void longlong_test(void);
+
+int fib(int n);
+void num(int n);
+void forward_ref(void);
+int isid(int c);
+
+#define A 2
+#define N 1234 + A
+#define pf printf
+#define M1(a, b)  (a) + (b)
+
+#define str(s) # s
+#define glue(a, b) a ## b
+#define xglue(a, b) glue(a, b)
+#define HIGHLOW "hello"
+#define LOW LOW ", world"
+
+#define min(a, b) ((a) < (b) ? (a) : (b))
+
+#ifdef C99_MACROS
+#define dprintf(level,...) printf(__VA_ARGS__)
+#endif
+
+#define AAA 3
+#undef AAA
+#define AAA 4
+
+void macro_test()
+{
+    printf("macro:\n");
+    pf("N=%d\n", N);
+    printf("aaa=%d\n", AAA);
+
+    printf("min=%d\n", min(1, min(2, -1)));
+
+    printf("s1=%s\n", glue(HIGH, LOW));
+    printf("s2=%s\n", xglue(HIGH, LOW));
+    printf("s3=%s\n", str("c"));
+    printf("s4=%s\n", str(a1));
+
+#ifdef A
+    printf("A defined\n");
+#endif
+#ifdef B
+    printf("B defined\n");
+#endif
+#ifdef A
+    printf("A defined\n");
+#else
+    printf("A not defined\n");
+#endif
+#ifdef B
+    printf("B defined\n");
+#else
+    printf("B not defined\n");
+#endif
+
+#ifdef A
+    printf("A defined\n");
+#ifdef B
+    printf("B1 defined\n");
+#else
+    printf("B1 not defined\n");
+#endif
+#else
+    printf("A not defined\n");
+#ifdef B
+    printf("B2 defined\n");
+#else
+    printf("B2 not defined\n");
+#endif
+#endif
+
+#if 1+1
+    printf("test true1\n");
+#endif
+#if 0
+    printf("test true2\n");
+#endif
+#if 1-1
+    printf("test true3\n");
+#endif
+#if defined(A)
+    printf("test trueA\n");
+#endif
+#if defined(B)
+    printf("test trueB\n");
+#endif
+
+#if 0
+    printf("test 0\n");
+#elif 0
+    printf("test 1\n");
+#elif 2
+    printf("test 2\n");
+#else
+    printf("test 3\n");
+#endif
+
+    printf("__LINE__=%d __FILE__=%s\n",
+           __LINE__, __FILE__);
+    /* not strictly preprocessor, but we test it there */
+#ifdef C99_MACROS
+    printf("__func__ = %s\n", __func__);
+    dprintf(1, "vaarg=%d\n", 1);
+#endif
+}
+
+int op(a,b)
+{
+    return a / b;
+}
+
+int ret(a)
+{
+    if (a == 2)
+        return 1;
+    if (a == 3)
+        return 2;
+    return 0;
+}
+
+void ps(char *s)
+{
+    int c;
+    while (1) {
+        c = *s;
+        if (c == 0)
+            break;
+        printf("%c", c);
+        s++;
+    }
+}
+
+void string_test()
+{
+    int b;
+    printf("string:\n");
+    printf("\141\1423\143\n");/* dezdez test */
+    printf("\x41\x42\x43\x3a\n");
+    printf("c=%c\n", 'r');
+    printf("wc=%C 0x%lx %C\n", L'a', L'\x1234', L'c');
+    printf("wstring=%S\n", L"abc");
+    printf("wstring=%S\n", L"abc" L"def" "ghi");
+    ps("test");
+    b = 32;
+    while ((b = b + 1) < 96) {
+        printf("%c", b);
+    }
+    printf("\n");
+    printf("fib=%d\n", fib(33));
+    b = 262144;
+    while (b != 0x80000000) {
+        num(b);
+        b = b * 2;
+    }
+}
+
+void loop_test()
+{
+    int i;
+    i = 0;
+    while (i < 10)
+        printf("%d", i++);
+    printf("\n");
+    for(i = 0; i < 10;i++)
+        printf("%d", i);
+    printf("\n");
+    i = 0;
+    do {
+        printf("%d", i++);
+    } while (i < 10);
+    printf("\n");
+
+    /* break/continue tests */
+    i = 0;
+    while (1) {
+        if (i == 6)
+            break;
+        i++;
+        if (i == 3)
+            continue;
+        printf("%d", i);
+    }
+    printf("\n");
+
+    /* break/continue tests */
+    i = 0;
+    do {
+        if (i == 6)
+            break;
+        i++;
+        if (i == 3)
+            continue;
+        printf("%d", i);
+    } while(1);
+    printf("\n");
+
+    for(i = 0;i < 10;i++) {
+        if (i == 3)
+            continue;
+        printf("%d", i);
+    }
+    printf("\n");
+}
+
+
+void goto_test()
+{
+    int i;
+
+    printf("goto:\n");
+    i = 0;
+ s_loop:
+    if (i >= 10) 
+        goto s_end;
+    printf("%d", i);
+    i++;
+    goto s_loop;
+ s_end:
+    printf("\n");
+}
+
+enum {
+    E0,
+    E1 = 2,
+    E2 = 4,
+    E3,
+    E4,
+};
+
+enum test {
+    E5 = 1000,
+};
+
+void enum_test()
+{
+    enum test b1;
+    printf("enum:\n%d %d %d %d %d %d\n",
+           E0, E1, E2, E3, E4, E5);
+    b1 = 1;
+    printf("b1=%d\n", b1);
+}
+
+typedef int *my_ptr;
+
+void typedef_test()
+{
+    my_ptr a;
+    int b;
+    a = &b;
+    *a = 1234;
+    printf("typedef:\n");
+    printf("a=%d\n", *a);
+}
+
+void forward_test()
+{
+    printf("forward:\n");
+    forward_ref();
+    forward_ref();
+}
+
+
+void forward_ref(void)
+{
+    printf("forward ok\n");
+}
+
+typedef struct struct1 {
+    int f1;
+    int f2, f3;
+    union union1 {
+        int v1;
+        int v2;
+    } u;
+    char str[3];
+} struct1;
+
+struct struct2 {
+    int a;
+    char b;
+};
+
+union union2 {
+    int w1;
+    int w2;
+};
+
+struct struct1 st1, st2;
+
+int main(int argc, char **argv)
+{
+    string_test();
+    expr_test();
+    macro_test();
+    scope_test();
+    forward_test();
+    funcptr_test();
+    loop_test();
+    switch_test();
+    goto_test();
+    enum_test();
+    typedef_test();
+    struct_test();
+    array_test();
+    expr_ptr_test();
+    bool_test();
+    expr2_test();
+    constant_expr_test();
+    expr_cmp_test();
+    char_short_test();
+    init_test();
+    compound_literal_test();
+    kr_test();
+    struct_assign_test();
+    cast_test();
+    bitfield_test();
+    c99_bool_test();
+    float_test();
+    longlong_test();
+    return 0; 
+}
+
+int tab[3];
+int tab2[3][2];
+
+int g;
+
+void f1(g)
+{
+    printf("g1=%d\n", g);
+}
+
+void scope_test()
+{
+    printf("scope:\n");
+    g = 2;
+    f1(1);
+    printf("g2=%d\n", g);
+    {
+        int g;
+        g = 3;
+        printf("g3=%d\n", g);
+        {
+            int g;
+            g = 4;
+            printf("g4=%d\n", g);
+        }
+    }
+    printf("g5=%d\n", g);
+}
+
+void array_test(int a[4])
+{
+    int i, j;
+
+    printf("array:\n");
+    printf("sizeof(a) = %d\n", sizeof(a));
+    printf("sizeof(int) = %d\n", sizeof(int));
+    printf("sizeof(unsigned int) = %d\n", sizeof(unsigned int));
+    printf("sizeof(short) = %d\n", sizeof(short));
+    printf("sizeof(unsigned short) = %d\n", sizeof(unsigned short));
+    printf("sizeof(char) = %d\n", sizeof(char));
+    printf("sizeof(unsigned char) = %d\n", sizeof(unsigned char));
+    printf("sizeof tab %d\n", sizeof(tab));
+    printf("sizeof tab2 %d\n", sizeof tab2);
+    tab[0] = 1;
+    tab[1] = 2;
+    tab[2] = 3;
+    printf("%d %d %d\n", tab[0], tab[1], tab[2]);
+    for(i=0;i<3;i++)
+        for(j=0;j<2;j++)
+            tab2[i][j] = 10 * i + j;
+    for(i=0;i<3*2;i++) {
+        printf(" %3d", ((int *)tab2)[i]);
+    }
+    printf("\n");
+}
+
+void expr_test()
+{
+    int a, b;
+    a = 0;
+    printf("%d\n", a += 1);
+    printf("%d\n", a -= 2);
+    printf("%d\n", a *= 31232132);
+    printf("%d\n", a /= 4);
+    printf("%d\n", a %= 20);
+    printf("%d\n", a &= 6);
+    printf("%d\n", a ^= 7);
+    printf("%d\n", a |= 8);
+    printf("%d\n", a >>= 3);
+    printf("%d\n", a <<= 4);
+
+    a = 22321;
+    b = -22321;
+    printf("%d\n", a + 1);
+    printf("%d\n", a - 2);
+    printf("%d\n", a * 312);
+    printf("%d\n", a / 4);
+    printf("%d\n", b / 4);
+    printf("%d\n", (unsigned)b / 4);
+    printf("%d\n", a % 20);
+    printf("%d\n", b % 20);
+    printf("%d\n", (unsigned)b % 20);
+    printf("%d\n", a & 6);
+    printf("%d\n", a ^ 7);
+    printf("%d\n", a | 8);
+    printf("%d\n", a >> 3);
+    printf("%d\n", b >> 3);
+    printf("%d\n", (unsigned)b >> 3);
+    printf("%d\n", a << 4);
+    printf("%d\n", ~a);
+    printf("%d\n", -a);
+    printf("%d\n", +a);
+
+    printf("%d\n", 12 + 1);
+    printf("%d\n", 12 - 2);
+    printf("%d\n", 12 * 312);
+    printf("%d\n", 12 / 4);
+    printf("%d\n", 12 % 20);
+    printf("%d\n", 12 & 6);
+    printf("%d\n", 12 ^ 7);
+    printf("%d\n", 12 | 8);
+    printf("%d\n", 12 >> 2);
+    printf("%d\n", 12 << 4);
+    printf("%d\n", ~12);
+    printf("%d\n", -12);
+    printf("%d\n", +12);
+    printf("%d %d %d %d\n", 
+           isid('a'), 
+           isid('g'), 
+           isid('T'), 
+           isid('('));
+}
+
+int isid(int c)
+{
+    return (c >= 'a' & c <= 'z') | (c >= 'A' & c <= 'Z') | c == '_';
+}
+
+/**********************/
+
+int vstack[10], *vstack_ptr;
+
+void vpush(int vt, int vc)
+{
+    *vstack_ptr++ = vt;
+    *vstack_ptr++ = vc;
+}
+
+void vpop(int *ft, int *fc)
+{
+    *fc = *--vstack_ptr;
+    *ft = *--vstack_ptr;
+}
+
+void expr2_test()
+{
+    int a, b;
+
+    printf("expr2:\n");
+    vstack_ptr = vstack;
+    vpush(1432432, 2);
+    vstack_ptr[-2] &= ~0xffffff80;
+    vpop(&a, &b);
+    printf("res= %d %d\n", a, b);
+}
+
+void constant_expr_test()
+{
+    int a;
+    printf("constant_expr:\n");
+    a = 3;
+    printf("%d\n", a * 16);
+    printf("%d\n", a * 1);
+    printf("%d\n", a + 0);
+}
+
+int tab4[10];
+
+void expr_ptr_test()
+{
+    int *p, *q;
+
+    printf("expr_ptr:\n");
+    p = tab4;
+    q = tab4 + 10;
+    printf("diff=%d\n", q - p);
+    p++;
+    printf("inc=%d\n", p - tab4);
+    p--;
+    printf("dec=%d\n", p - tab4);
+    ++p;
+    printf("inc=%d\n", p - tab4);
+    --p;
+    printf("dec=%d\n", p - tab4);
+    printf("add=%d\n", p + 3 - tab4);
+    printf("add=%d\n", 3 + p - tab4);
+}
+
+void expr_cmp_test()
+{
+    int a, b;
+    printf("constant_expr:\n");
+    a = -1;
+    b = 1;
+    printf("%d\n", a == a);
+    printf("%d\n", a != a);
+
+    printf("%d\n", a < b);
+    printf("%d\n", a <= b);
+    printf("%d\n", a <= a);
+    printf("%d\n", b >= a);
+    printf("%d\n", a >= a);
+    printf("%d\n", b > a);
+
+    printf("%d\n", (unsigned)a < b);
+    printf("%d\n", (unsigned)a <= b);
+    printf("%d\n", (unsigned)a <= a);
+    printf("%d\n", (unsigned)b >= a);
+    printf("%d\n", (unsigned)a >= a);
+    printf("%d\n", (unsigned)b > a);
+}
+
+void struct_test()
+{
+    struct1 *s;
+    union union2 u;
+
+    printf("struct:\n");
+    printf("sizes: %d %d %d %d\n",
+           sizeof(struct struct1),
+           sizeof(struct struct2),
+           sizeof(union union1),
+           sizeof(union union2));
+    st1.f1 = 1;
+    st1.f2 = 2;
+    st1.f3 = 3;
+    printf("st1: %d %d %d\n",
+           st1.f1, st1.f2, st1.f3);
+    st1.u.v1 = 1;
+    st1.u.v2 = 2;
+    printf("union1: %d\n", st1.u.v1);
+    u.w1 = 1;
+    u.w2 = 2;
+    printf("union2: %d\n", u.w1);
+    s = &st2;
+    s->f1 = 3;
+    s->f2 = 2;
+    s->f3 = 1;
+    printf("st2: %d %d %d\n",
+           s->f1, s->f2, s->f3);
+    printf("str_addr=%x\n", (int)st1.str - (int)&st1.f1);
+}
+
+/* XXX: depend on endianness */
+void char_short_test()
+{
+    int var1, var2;
+
+    printf("char_short:\n");
+
+    var1 = 0x01020304;
+    var2 = 0xfffefdfc;
+    printf("s8=%d %d\n", 
+           *(char *)&var1, *(char *)&var2);
+    printf("u8=%d %d\n", 
+           *(unsigned char *)&var1, *(unsigned char *)&var2);
+    printf("s16=%d %d\n", 
+           *(short *)&var1, *(short *)&var2);
+    printf("u16=%d %d\n", 
+           *(unsigned short *)&var1, *(unsigned short *)&var2);
+    printf("s32=%d %d\n", 
+           *(int *)&var1, *(int *)&var2);
+    printf("u32=%d %d\n", 
+           *(unsigned int *)&var1, *(unsigned int *)&var2);
+    *(char *)&var1 = 0x08;
+    printf("var1=%x\n", var1);
+    *(short *)&var1 = 0x0809;
+    printf("var1=%x\n", var1);
+    *(int *)&var1 = 0x08090a0b;
+    printf("var1=%x\n", var1);
+}
+
+/******************/
+
+typedef struct Sym {
+    int v;
+    int t;
+    int c;
+    struct Sym *next;
+    struct Sym *prev;
+} Sym;
+
+void bool_test()
+{
+    int *s, a;
+
+    a = 0;
+    s = (void*)0;
+    printf("!s=%d\n", !s);
+
+    if (!s || !s[0])
+        a = 1;
+    printf("a=%d\n", a);
+
+    printf("a=%d %d %d\n", 0 || 0, 0 || 1, 1 || 1);
+    printf("a=%d %d %d\n", 0 && 0, 0 && 1, 1 && 1);
+    printf("a=%d %d\n", 1 ? 1 : 0, 0 ? 1 : 0);
+#if 1 && 1
+    printf("a1\n");
+#endif
+#if 1 || 0
+    printf("a2\n");
+#endif
+#if 1 ? 0 : 1
+    printf("a3\n");
+#endif
+#if 0 ? 0 : 1
+    printf("a4\n");
+#endif
+
+    a = 4;
+    printf("b=%d\n", a + (0 ? 1 : a / 2));
+}
+
+
+int cinit1 = 0;
+int *cinit2 = (int []){3, 2, 1};
+
+void compound_literal_test(void)
+{
+    int *p, i;
+    char *q, *q3;
+
+    printf("compound_test:\n");
+
+    p = (int []){1, 2, 3};
+    for(i=0;i<3;i++)
+        printf(" %d", p[i]);
+    printf("\n");
+
+    for(i=0;i<3;i++)
+        printf("%d", cinit2[i]);
+    printf("\n");
+
+    q = "tralala1";
+    printf("q1=%s\n", q);
+
+    q = (char *){ "tralala2" };
+    printf("q2=%s\n", q);
+
+    q3 = (char *){ q };
+    printf("q3=%s\n", q3);
+
+    q = (char []){ "tralala3" };
+    printf("q4=%s\n", q);
+
+#ifdef ALL_ISOC99
+    p = (int []){1, 2, cinit1 + 3};
+    for(i=0;i<3;i++)
+        printf(" %d", p[i]);
+    printf("\n");
+
+    for(i=0;i<3;i++) {
+        p = (int []){1, 2, 4 + i};
+        printf("%d %d %d\n", 
+               p[0],
+               p[1],
+               p[2]);
+    }
+#endif
+}
+
+/* K & R protos */
+
+kr_func1(a, b)
+{
+    return a + b;
+}
+
+int kr_func2(a, b)
+{
+    return a + b;
+}
+
+kr_test()
+{
+    printf("kr_test:\n");
+    printf("func1=%d\n", kr_func1(3, 4));
+    printf("func2=%d\n", kr_func2(3, 4));
+    return 0;
+}
+
+void num(int n)
+{
+    char *tab, *p;
+    tab = (char*)malloc(20); 
+    p = tab;
+    while (1) {
+        *p = 48 + (n % 10);
+        p++;
+        n = n / 10;
+        if (n == 0)
+            break;
+    }
+    while (p != tab) {
+        p--;
+        printf("%c", *p);
+    }
+    printf("\n");
+}
+
+/* structure assignment tests */
+struct structa1 {
+    int f1;
+    char f2;
+};
+
+struct structa1 ssta1;
+
+void struct_assign_test1(struct structa1 s1, int t)
+{
+    printf("%d %d %d\n", s1.f1, s1.f2, t);
+}
+
+struct structa1 struct_assign_test2(struct structa1 s1, int t)
+{
+    s1.f1 += t;
+    s1.f2 -= t;
+    return s1;
+}
+
+void struct_assign_test()
+{
+    struct structa1 lsta1, lsta2;
+    
+    printf("struct_assign_test:\n");
+
+    lsta1.f1 = 1;
+    lsta1.f2 = 2;
+    printf("%d %d\n", lsta1.f1, lsta1.f2);
+    lsta2 = lsta1;
+    printf("%d %d\n", lsta2.f1, lsta2.f2);
+
+    struct_assign_test1(lsta2, 3);
+    
+    printf("before call: %d %d\n", lsta2.f1, lsta2.f2);
+    lsta2 = struct_assign_test2(lsta2, 4);
+    printf("after call: %d %d\n", lsta2.f1, lsta2.f2);
+}
+
+/* casts to short/char */
+
+void cast1(char a, short b, unsigned char c, unsigned short d)
+{
+    printf("%d %d %d %d\n", a, b, c, d);
+}
+
+char bcast;
+short scast;
+
+void cast_test()
+{
+    int a;
+
+    printf("cast_test:\n");
+    a = 0xfffff;
+    cast1(a, a, a, a);
+    a = 0xffffe;
+    printf("%d %d %d %d\n",
+           (char)(a + 1),
+           (short)(a + 1),
+           (unsigned char)(a + 1),
+           (unsigned short)(a + 1));
+    printf("%d %d %d %d\n",
+           (char)0xfffff,
+           (short)0xfffff,
+           (unsigned char)0xfffff,
+           (unsigned short)0xfffff);
+
+    a = (bcast = 128) + 1;
+    printf("%d\n", a);
+    a = (scast = 65536) + 1;
+    printf("%d\n", a);
+}
+
+/* initializers tests */
+struct structinit1 {
+    int f1;
+    char f2;
+    short f3;
+    int farray[3];
+};
+
+int sinit1 = 2;
+int sinit2 = { 3 };
+int sinit3[3] = { 1, 2, {{3}}, };
+int sinit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
+int sinit5[3][2] = { 1, 2, 3, 4, 5, 6 };
+int sinit6[] = { 1, 2, 3 };
+int sinit7[] = { [2] = 3, [0] = 1, 2 };
+char sinit8[] = "hello" "trala";
+
+struct structinit1 sinit9 = { 1, 2, 3 };
+struct structinit1 sinit10 = { .f2 = 2, 3, .f1 = 1 };
+struct structinit1 sinit11 = { .f2 = 2, 3, .f1 = 1, 
+#ifdef ALL_ISOC99
+                               .farray[0] = 10,
+                               .farray[1] = 11,
+                               .farray[2] = 12,
+#endif
+};
+
+char *sinit12 = "hello world";
+char *sinit13[] = {
+    "test1",
+    "test2",
+    "test3",
+};
+char sinit14[10] = { "abc" };
+
+void init_test(void)
+{
+    int linit1 = 2;
+    int linit2 = { 3 };
+    int linit4[3][2] = { {1, 2}, {3, 4}, {5, 6} };
+    int linit6[] = { 1, 2, 3 };
+    int i, j;
+    char linit8[] = "hello" "trala";
+    int linit12[10] = { 1, 2 };
+    int linit13[10] = { 1, 2, [7] = 3, [3] = 4, };
+    char linit14[10] = "abc";
+    int linit15[10] = { linit1, linit1 + 1, [6] = linit1 + 2, };
+    struct linit16 { int a1, a2, a3, a4; } linit16 = { 1, .a3 = 2 };
+    
+    printf("init_test:\n");
+
+    printf("sinit1=%d\n", sinit1);
+    printf("sinit2=%d\n", sinit2);
+    printf("sinit3=%d %d %d %d\n", 
+           sizeof(sinit3),
+           sinit3[0],
+           sinit3[1],
+           sinit3[2]
+           );
+    printf("sinit6=%d\n", sizeof(sinit6));
+    printf("sinit7=%d %d %d %d\n", 
+           sizeof(sinit7),
+           sinit7[0],
+           sinit7[1],
+           sinit7[2]
+           );
+    printf("sinit8=%s\n", sinit8);
+    printf("sinit9=%d %d %d\n", 
+           sinit9.f1,
+           sinit9.f2,
+           sinit9.f3
+           );
+    printf("sinit10=%d %d %d\n", 
+           sinit10.f1,
+           sinit10.f2,
+           sinit10.f3
+           );
+    printf("sinit11=%d %d %d %d %d %d\n", 
+           sinit11.f1,
+           sinit11.f2,
+           sinit11.f3,
+           sinit11.farray[0],
+           sinit11.farray[1],
+           sinit11.farray[2]
+           );
+
+    for(i=0;i<3;i++)
+        for(j=0;j<2;j++)
+            printf("[%d][%d] = %d %d %d\n", 
+                   i, j, sinit4[i][j], sinit5[i][j], linit4[i][j]);
+    printf("linit1=%d\n", linit1);
+    printf("linit2=%d\n", linit2);
+    printf("linit6=%d\n", sizeof(linit6));
+    printf("linit8=%d %s\n", sizeof(linit8), linit8);
+
+    printf("sinit12=%s\n", sinit12);
+    printf("sinit13=%d %s %s %s\n",
+           sizeof(sinit13), 
+           sinit13[0],
+           sinit13[1],
+           sinit13[2]);
+    printf("sinit14=%s\n", sinit14);
+
+    for(i=0;i<10;i++) printf(" %d", linit12[i]);
+    printf("\n");
+    for(i=0;i<10;i++) printf(" %d", linit13[i]);
+    printf("\n");
+    for(i=0;i<10;i++) printf(" %d", linit14[i]);
+    printf("\n");
+    for(i=0;i<10;i++) printf(" %d", linit15[i]);
+    printf("\n");
+    printf("%d %d %d %d\n", 
+           linit16.a1,
+           linit16.a2,
+           linit16.a3,
+           linit16.a4);
+}
+
+void switch_test()
+{
+    int i;
+
+    for(i=0;i<15;i++) {
+        switch(i) {
+        case 0:
+        case 1:
+            printf("a");
+            break;
+        default:
+            printf("%d", i);
+            break;
+        case 8 ... 12:
+            printf("c");
+            break;
+        case 3:
+            printf("b");
+            break;
+        }
+    }
+    printf("\n");
+}
+
+/* ISOC99 _Bool type */
+void c99_bool_test(void)
+{
+#ifdef BOOL_ISOC99
+    int a;
+    _Bool b;
+
+    printf("bool_test:\n");
+    printf("sizeof(_Bool) = %d\n", sizeof(_Bool));
+    a = 3;
+    printf("cast: %d %d %d\n", (_Bool)10, (_Bool)0, (_Bool)a);
+    b = 3;
+    printf("b = %d\n", b);
+    b++;
+    printf("b = %d\n", b);
+#endif
+}
+
+void bitfield_test(void)
+{
+    int a;
+    struct sbf1 {
+        int f1 : 3;
+        int : 2;
+        int f2 : 1;
+        int : 0;
+        int f3 : 5;
+        int f4 : 7;
+        unsigned int f5 : 7;
+    } st1;
+    printf("bitfield_test:");
+    printf("sizeof(st1) = %d\n", sizeof(st1));
+
+    st1.f1 = 3;
+    st1.f2 = 1;
+    st1.f3 = 15;
+    a = 120;
+    st1.f4 = a;
+    st1.f5 = a;
+    st1.f5++;
+    printf("%d %d %d %d %d\n",
+           st1.f1, st1.f2, st1.f3, st1.f4, st1.f5);
+}
+
+#define FTEST(prefix, type, fmt)\
+void prefix ## cmp(type a, type b)\
+{\
+    printf("%d %d %d %d %d %d\n",\
+           a == b,\
+           a != b,\
+           a < b,\
+           a > b,\
+           a >= b,\
+           a <= b);\
+    printf(fmt " " fmt " " fmt " " fmt " " fmt " " fmt " " fmt "\n",\
+           a,\
+           b,\
+           a + b,\
+           a - b,\
+           a * b,\
+           a / b,\
+           -a);\
+    printf(fmt "\n", ++a);\
+    printf(fmt "\n", a++);\
+    printf(fmt "\n", a);\
+}\
+void prefix ## fcast(type a)\
+{\
+    float fa;\
+    double da;\
+    long double la;\
+    int ia;\
+    unsigned int ua;\
+    type b;\
+    fa = a;\
+    da = a;\
+    la = a;\
+    printf("ftof: %f %f %Lf\n", fa, da, la);\
+    ia = (int)a;\
+    ua = (unsigned int)a;\
+    printf("ftoi: %d %u\n", ia, ua);\
+    ia = -1234;\
+    ua = 0x81234500;\
+    b = ia;\
+    printf("itof: " fmt "\n", b);\
+    b = ua;\
+    printf("utof: " fmt "\n", b);\
+}\
+\
+void prefix ## test(void)\
+{\
+    printf("testing '%s'\n", #type);\
+    prefix ## cmp(1, 2.5);\
+    prefix ## cmp(2, 1.5);\
+    prefix ## cmp(1, 1);\
+    prefix ## fcast(234.6);\
+    prefix ## fcast(-2334.6);\
+}
+
+FTEST(f, float, "%f")
+FTEST(d, double, "%f")
+FTEST(ld, long double, "%Lf")
+
+double ftab1[3] = { 1.2, 3.4, 5.6 };
+
+
+void float_test(void)
+{
+    float fa, fb;
+    double da, db;
+    int a;
+    unsigned int b;
+
+    printf("float_test:\n");
+    printf("sizeof(float) = %d\n", sizeof(float));
+    printf("sizeof(double) = %d\n", sizeof(double));
+    printf("sizeof(long double) = %d\n", sizeof(long double));
+    ftest();
+    dtest();
+    ldtest();
+    printf("%f %f %f\n", ftab1[0], ftab1[1], ftab1[2]);
+    printf("%f %f %f\n", 2.12, .5, 2.3e10);
+    //    printf("%f %f %f\n", 0x1234p12, 0x1e23.23p10, 0x12dp-10);
+    da = 123;
+    printf("da=%f\n", da);
+    fa = 123;
+    printf("fa=%f\n", fa);
+    a = 4000000000;
+    da = a;
+    printf("da = %f\n", da);
+    b = 4000000000;
+    db = b;
+    printf("db = %f\n", db);
+}
+
+int fib(int n)
+{
+    if (n <= 2)
+        return 1;
+    else
+        return fib(n-1) + fib(n-2);
+}
+
+void funcptr_test()
+{
+    void (*func)(int);
+    int a;
+    struct {
+        int dummy;
+        void (*func)(int);
+    } st1;
+
+    printf("funcptr:\n");
+    func = &num;
+    (*func)(12345);
+    func = num;
+    a = 1;
+    a = 1;
+    func(12345);
+    /* more complicated pointer computation */
+    st1.func = num;
+    st1.func(12346);
+    printf("sizeof1 = %d\n", sizeof(funcptr_test));
+    printf("sizeof2 = %d\n", sizeof funcptr_test);
+    printf("sizeof3 = %d\n", sizeof(&funcptr_test));
+    printf("sizeof4 = %d\n", sizeof &funcptr_test);
+}
+
+void lloptest(long long a, long long b)
+{
+    unsigned long long ua, ub;
+
+    ua = a;
+    ub = b;
+    /* arith */
+    printf("arith: %Ld %Ld %Ld %Ld %Ld\n",
+           a + b,
+           a - b,
+           a * b,
+           a / b,
+           a % b);
+    
+    /* binary */
+    printf("bin: %Ld %Ld %Ld\n",
+           a & b,
+           a | b,
+           a ^ b);
+
+    /* tests */
+    printf("test: %d %d %d %d %d %d\n",
+           a == b,
+           a != b,
+           a < b,
+           a > b,
+           a >= b,
+           a <= b);
+    
+    printf("utest: %d %d %d %d %d %d\n",
+           ua == ub,
+           ua != ub,
+           ua < ub,
+           ua > ub,
+           ua >= ub,
+           ua <= ub);
+
+    /* arith2 */
+    a++;
+    b++;
+    printf("arith2: %Ld %Ld\n", a, b);
+    printf("arith2: %Ld %Ld\n", a++, b++);
+    printf("arith2: %Ld %Ld\n", --a, --b);
+    printf("arith2: %Ld %Ld\n", a, b);
+}
+
+void llshift(long long a, int b)
+{
+    printf("shift: %Ld %Ld %Ld\n",
+           (unsigned long long)a >> b,
+           a >> b,
+           a << b);
+    printf("shiftc: %Ld %Ld %Ld\n",
+           (unsigned long long)a >> 3,
+           a >> 3,
+           a << 3);
+    printf("shiftc: %Ld %Ld %Ld\n",
+           (unsigned long long)a >> 35,
+           a >> 35,
+           a << 35);
+}
+
+void llfloat(void)
+{
+    float fa;
+    double da;
+    long double lda;
+    long long la, lb, lc;
+    unsigned long long ula, ulb, ulc;
+    la = 0x12345678;
+    ula = 0x72345678;
+    la = (la << 20) | 0x12345;
+    ula = ula << 33;
+    printf("la=%Ld ula=%Lu\n", la, ula);
+
+    fa = la;
+    da = la;
+    lda = la;
+    printf("lltof: %f %f %Lf\n", fa, da, lda);
+
+    la = fa;
+    lb = da;
+    lc = lda;
+    printf("ftoll: %Ld %Ld %Ld\n", la, lb, lc);
+
+    fa = ula;
+    da = ula;
+    lda = ula;
+    printf("ulltof: %f %f %Lf\n", fa, da, lda);
+
+    ula = fa;
+    ulb = da;
+    ulc = lda;
+    printf("ftoull: %Lu %Lu %Lu\n", ula, ulb, ulc);
+}
+
+long long llfunc1(int a)
+{
+    return a;
+}
+
+/* currently not supported, except for typing */
+void longlong_test(void)
+{
+    long long a, b, c;
+    int ia;
+    unsigned int ua;
+    printf("longlong_test:\n");
+    printf("sizeof(long long) = %d\n", sizeof(long long));
+    ia = -1;
+    ua = -2;
+    a = ia;
+    b = ua;
+    printf("%Ld %Ld\n", a, b);
+    printf("%Ld %Ld %Ld %Lx\n", 
+           (long long)1, 
+           (long long)-2,
+           1LL,
+           0x1234567812345679);
+    a = llfunc1(-3);
+    printf("%Ld\n", a);
+
+    lloptest(1000, 23);
+    lloptest(0xff, 0x1234);
+    b = 0x72345678 << 10;
+    lloptest(-3, b);
+    llshift(0x123, 5);
+    llshift(-23, 5);
+    b = 0x72345678 << 10;
+    llshift(b, 47);
+
+    llfloat();
+#if 1
+    b = 0x12345678;
+    a = -1;
+    c = a + b;
+    printf("%Lx\n", c);
+#endif
+}
+