| /* RUN: %clang_cc1 %s -std=c89 -pedantic -fsyntax-only -verify -Wimplicit-function-declaration |
| */ |
| void test1() { |
| { |
| int i; |
| i = i + 1; |
| int j; /* expected-warning {{mixing declarations and code}} */ |
| } |
| { |
| __extension__ int i; |
| i = i + 1; |
| int j; /* expected-warning {{mixing declarations and code}} */ |
| } |
| { |
| int i; |
| i = i + 1; |
| __extension__ int j; /* expected-warning {{mixing declarations and code}} */ |
| } |
| } |
| |
| long long test2; /* expected-warning {{extension}} */ |
| |
| |
| void test3(int i) { |
| int A[i]; /* expected-warning {{variable length array}} */ |
| } |
| |
| int test4 = 0LL; /* expected-warning {{long long}} */ |
| |
| /* PR1999 */ |
| void test5(register); |
| |
| /* PR2041 */ |
| int *restrict; |
| int *__restrict; /* expected-error {{expected identifier}} */ |
| |
| |
| /* Implicit int, always ok */ |
| test6() { return 0; } |
| |
| /* PR2012 */ |
| test7; /* expected-warning {{declaration specifier missing, defaulting to 'int'}} */ |
| |
| void test8(int, x); /* expected-warning {{declaration specifier missing, defaulting to 'int'}} */ |
| |
| typedef int sometype; |
| int a(sometype, y) {return 0;} /* expected-warning {{declaration specifier missing, defaulting to 'int'}} \ |
| expected-warning {{omitting the parameter name in a function definition is a C2x extension}}*/ |
| |
| |
| |
| |
| void bar (void *); |
| void f11 (z) /* expected-error {{may not have 'void' type}} */ |
| void z; |
| { bar (&z); } |
| |
| typedef void T; |
| void foo(T); /* typedef for void is allowed */ |
| |
| void foo(void) {} |
| |
| /* PR2759 */ |
| void test10 (int x[*]); /* expected-warning {{variable length arrays are a C99 feature}} */ |
| void test11 (int x[static 4]); /* expected-warning {{static array size is a C99 feature}} */ |
| |
| void test12 (int x[const 4]) { /* expected-warning {{qualifier in array size is a C99 feature}} */ |
| int Y[x[1]]; /* expected-warning {{variable length arrays are a C99 feature}} expected-note {{parameter 'x'}} */ |
| } |
| |
| /* PR4074 */ |
| struct test13 { |
| int X[23]; |
| } test13a(); |
| |
| void test13b() { |
| int a = test13a().X[1]; /* expected-warning {{ISO C90 does not allow subscripting non-lvalue array}} */ |
| int b = 1[test13a().X]; /* expected-warning {{ISO C90 does not allow subscripting non-lvalue array}} */ |
| } |
| |
| /* Make sure we allow *test14 as a "function designator" */ |
| int test14() { return (&*test14)(); } |
| |
| int test15[5] = { [2] = 1 }; /* expected-warning {{designated initializers are a C99 feature}} */ |
| |
| extern int printf(__const char *__restrict __format, ...); |
| |
| /* Warn, but don't suggest typo correction. */ |
| void test16() { |
| printg("Hello, world!\n"); /* expected-warning {{implicit declaration of function 'printg'}} */ |
| } |
| |
| struct x { int x,y[]; }; /* expected-warning {{flexible array members are a C99 feature}} */ |
| |
| /* Duplicated type-qualifiers aren't allowed by C90 */ |
| const const int c_i; /* expected-warning {{duplicate 'const' declaration specifier}} */ |
| typedef volatile int vol_int; |
| volatile vol_int volvol_i; /* expected-warning {{duplicate 'volatile' declaration specifier}} */ |
| typedef volatile vol_int volvol_int; /* expected-warning {{duplicate 'volatile' declaration specifier}} */ |
| const int * const c; |
| |
| typedef const int CI; |
| |
| const CI mine1[5][5]; /* expected-warning {{duplicate 'const' declaration specifier}} */ |
| |
| typedef CI array_of_CI[5]; |
| const array_of_CI mine2; /* expected-warning {{duplicate 'const' declaration specifier}} */ |
| |
| typedef CI *array_of_pointer_to_CI[5]; |
| const array_of_pointer_to_CI mine3; |
| |
| void main() {} /* expected-error {{'main' must return 'int'}} */ |
| |
| const int main() {} /* expected-error {{'main' must return 'int'}} */ |
| |
| long long ll1 = /* expected-warning {{'long long' is an extension when C99 mode is not enabled}} */ |
| -42LL; /* expected-warning {{'long long' is an extension when C99 mode is not enabled}} */ |
| unsigned long long ull1 = /* expected-warning {{'long long' is an extension when C99 mode is not enabled}} */ |
| 42ULL; /* expected-warning {{'long long' is an extension when C99 mode is not enabled}} */ |
| |
| struct Test17 { int a; }; |
| struct Test17 test17_aux(void); |
| |
| void test17(int v, int w) { |
| int a[2] = { v, w }; /* expected-warning {{initializer for aggregate is not a compile-time constant}} */ |
| struct Test17 t0 = { v }; /* expected-warning {{initializer for aggregate is not a compile-time constant}} */ |
| struct Test17 t1 = test17_aux(); /* this is allowed */ |
| } |
| |