typedef unsigned char u8; typedef struct {} empty_s; struct contains_empty { u8 a; empty_s empty; u8 b; }; struct contains_empty ce = { { (1) }, (empty_s){}, 022, }; /* The following decl of 'q' would demonstrate the TCC bug in init_putv when handling copying compound literals. (Compound literals aren't acceptable constant initializers in isoc99, but we accept them like gcc, except for this case) //char *q = (char *){ "trara" }; */ struct SS {u8 a[3], b; }; struct SS sinit16[] = { { 1 }, 2 }; struct S { u8 a,b; u8 c[2]; }; struct T { u8 s[16]; u8 a; }; struct U { u8 a; struct S s; u8 b; struct T t; }; struct V { struct S s; struct T t; u8 a; }; struct W { struct V t; struct S s[]; }; struct S gs = ((struct S){1, 2, 3, 4}); struct S gs2 = {1, 2, {3, 4}}; struct T gt = {"hello", 42}; struct U gu = {3, 5,6,7,8, 4, "huhu", 43}; struct U gu2 = {3, {5,6,7,8}, 4, {"huhu", 43}}; /* Optional braces around scalar initializers. Accepted, but with a warning. */ struct U gu3 = { {3}, {5,6,7,8,}, 4, {"huhu", 43}}; /* Many superfluous braces and leaving out one initializer for U.s.c[1] */ struct U gu4 = { 3, {5,6,7,}, 5, { "bla", {44}} }; /* Superfluous braces and useless parens around values */ struct S gs3 = { (1), {(2)}, {(((3))), {4}}}; /* Superfluous braces, and leaving out braces for V.t, plus cast */ struct V gv = {{{3},4,{5,6}}, "haha", (u8)45, 46}; /* Compound literal */ struct V gv2 = {(struct S){7,8,{9,10}}, {"hihi", 47}, 48}; /* Parens around compound literal */ struct V gv3 = {((struct S){7,8,{9,10}}), {"hoho", 49}, 50}; /* Initialization of a flex array member (warns in GCC) */ struct W gw = {{1,2,3,4}, {1,2,3,4,5}}; union UU { u8 a; u8 b; }; struct SU { union UU u; u8 c; }; struct SU gsu = {5,6}; /* Unnamed struct/union members aren't ISO C, but it's a widely accepted extension. See below for further extensions to that under -fms-extension.*/ union UV { struct {u8 a,b;}; struct S s; }; union UV guv = {{6,5}}; union UV guv2 = {{.b = 7, .a = 8}}; union UV guv3 = {.b = 8, .a = 7}; struct SSU { int y; struct { int x; }; }; struct SSU gssu1 = { .y = 5, .x = 3 }; struct SSU gssu2 = { 5, 3 }; /* Under -fms-extensions also the following is valid: union UV2 { struct Anon {u8 a,b;}; // unnamed member, but tagged struct, ... struct S s; }; struct Anon gan = { 10, 11 }; // ... which makes it available here. union UV2 guv4 = {{4,3}}; // and the other inits from above as well */ struct in6_addr { union { u8 u6_addr8[16]; unsigned short u6_addr16[8]; } u; }; struct flowi6 { struct in6_addr saddr, daddr; }; struct pkthdr { struct in6_addr daddr, saddr; }; struct pkthdr phdr = { { { 6,5,4,3 } }, { { 9,8,7,6 } } }; struct Wrap { void *func; }; int global; void inc_global (void) { global++; } struct Wrap global_wrap[] = { ((struct Wrap) {inc_global}), inc_global, }; #include void print_ (const char *name, const u8 *p, long size) { printf ("%s:", name); while (size--) { printf (" %x", *p++); } printf ("\n"); } #define print(x) print_(#x, (u8*)&x, sizeof (x)) #if 1 void foo (struct W *w, struct pkthdr *phdr_) { struct S ls = {1, 2, 3, 4}; struct S ls2 = {1, 2, {3, 4}}; struct T lt = {"hello", 42}; struct U lu = {3, 5,6,7,8, 4, "huhu", 43}; struct U lu1 = {3, ls, 4, {"huhu", 43}}; struct U lu2 = {3, (ls), 4, {"huhu", 43}}; const struct S *pls = &ls; struct S ls21 = *pls; struct U lu22 = {3, *pls, 4, {"huhu", 43}}; /* Incomplete bracing. */ struct U lu21 = {3, ls, 4, "huhu", 43}; /* Optional braces around scalar initializers. Accepted, but with a warning. */ struct U lu3 = { 3, {5,6,7,8,}, 4, {"huhu", 43}}; /* Many superfluous braces and leaving out one initializer for U.s.c[1] */ struct U lu4 = { 3, {5,6,7,}, 5, { "bla", 44} }; /* Superfluous braces and useless parens around values */ struct S ls3 = { (1), (2), {(((3))), 4}}; /* Superfluous braces, and leaving out braces for V.t, plus cast */ struct V lv = {{3,4,{5,6}}, "haha", (u8)45, 46}; /* Compound literal */ struct V lv2 = {(struct S)w->t.s, {"hihi", 47}, 48}; /* Parens around compound literal */ struct V lv3 = {((struct S){7,8,{9,10}}), ((const struct W *)w)->t.t, 50}; const struct pkthdr *phdr = phdr_; struct flowi6 flow = { .daddr = phdr->daddr, .saddr = phdr->saddr }; int elt = 0x42; /* Range init, overlapping */ struct T lt2 = { { [1 ... 5] = 9, [6 ... 10] = elt, [4 ... 7] = elt+1 }, 1 }; struct SSU lssu1 = { 5, 3 }; struct SSU lssu2 = { .y = 5, .x = 3 }; print(ls); print(ls2); print(lt); print(lu); print(lu1); print(lu2); print(ls21); print(lu21); print(lu22); print(lu3); print(lu4); print(ls3); print(lv); print(lv2); print(lv3); print(lt2); print(lssu1); print(lssu2); print(flow); } #endif void test_compound_with_relocs (void) { struct Wrap local_wrap[] = { ((struct Wrap) {inc_global}), inc_global, }; void (*p)(void); p = global_wrap[0].func; p(); p = global_wrap[1].func; p(); p = local_wrap[0].func; p(); p = local_wrap[1].func; p(); } void sys_ni(void) { printf("ni\n"); } void sys_one(void) { printf("one\n"); } void sys_two(void) { printf("two\n"); } void sys_three(void) { printf("three\n"); } typedef void (*fptr)(void); const fptr table[3] = { [0 ... 2] = &sys_ni, [0] = sys_one, [1] = sys_two, [2] = sys_three, }; void test_multi_relocs(void) { int i; for (i = 0; i < sizeof(table)/sizeof(table[0]); i++) table[i](); } /* Following is from GCC gcc.c-torture/execute/20050613-1.c. */ struct SEA { int i; int j; int k; int l; }; struct SEB { struct SEA a; int r[1]; }; struct SEC { struct SEA a; int r[0]; }; struct SED { struct SEA a; int r[]; }; static void test_correct_filling (struct SEA *x) { static int i; if (x->i != 0 || x->j != 5 || x->k != 0 || x->l != 0) printf("sea_fill%d: wrong\n", i); else printf("sea_fill%d: okay\n", i); i++; } int test_zero_init (void) { /* The peculiarity here is that only a.j is initialized. That means that all other members must be zero initialized. TCC once didn't do that for sub-level designators. */ struct SEB b = { .a.j = 5 }; struct SEC c = { .a.j = 5 }; struct SED d = { .a.j = 5 }; test_correct_filling (&b.a); test_correct_filling (&c.a); test_correct_filling (&d.a); return 0; } int main() { print(ce); print(gs); print(gs2); print(gt); print(gu); print(gu2); print(gu3); print(gu4); print(gs3); print(gv); print(gv2); print(gv3); print(sinit16); print(gw); print(gsu); print(guv); print(guv.b); print(guv2); print(guv3); print(gssu1); print(gssu2); print(phdr); foo(&gw, &phdr); //printf("q: %s\n", q); test_compound_with_relocs(); test_multi_relocs(); test_zero_init(); return 0; }