llvm-project/clang/test/Sema/vla.c

44 lines
1.2 KiB
C

// RUN: clang %s -verify -fsyntax-only
int test1() {
typedef int x[test1()]; // vla
static int y = sizeof(x); // expected-error {{not a compile-time constant}}
}
// PR2347
void f (unsigned int m)
{
int e[2][m];
e[0][0] = 0;
}
// PR3048
int x = sizeof(struct{char qq[x];}); // expected-error {{fields must have a constant size}}
// PR2352
void f2(unsigned int m)
{
extern int e[2][m]; // expected-error {{variable length array declaration can not have 'extern' linkage}}
e[0][0] = 0;
}
// PR2361
int i;
int c[][i]; // expected-error {{variably modified type declaration not allowed at file scope}}
int d[i]; // expected-error {{variable length array declaration not allowed at file scope}}
int (*e)[i]; // expected-error {{variably modified type declaration not allowed at file scope}}
void f3()
{
static int a[i]; // expected-error {{variable length array declaration can not have 'static' storage duration}}
extern int b[i]; // expected-error {{variable length array declaration can not have 'extern' linkage}}
extern int (*c)[i]; // expected-error {{variably modified type declaration can not have 'extern' linkage}}
static int (*d)[i];
}