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