forked from OSchip/llvm-project
92 lines
2.9 KiB
C
92 lines
2.9 KiB
C
// RUN: %clang_cc1 %s -verify -fsyntax-only -pedantic
|
|
|
|
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 e1[2][m]; // expected-error {{variable length array declaration cannot have 'extern' linkage}}
|
|
|
|
e1[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 cannot have 'static' storage duration}}
|
|
extern int b[i]; // expected-error {{variable length array declaration cannot have 'extern' linkage}}
|
|
|
|
extern int (*c1)[i]; // expected-error {{variably modified type declaration cannot have 'extern' linkage}}
|
|
static int (*d)[i];
|
|
}
|
|
|
|
// PR3663
|
|
static const unsigned array[((2 * (int)((((4) / 2) + 1.0/3.0) * (4) - 1e-8)) + 1)]; // expected-warning {{variable length array folded to constant array as an extension}}
|
|
|
|
int a[*]; // expected-error {{star modifier used outside of function prototype}}
|
|
int f4(int a[*][*]);
|
|
|
|
// PR2044
|
|
int pr2044(int b) {int (*c(void))[b];**c() = 2;} // expected-error {{variably modified type}}
|
|
int pr2044b;
|
|
int (*pr2044c(void))[pr2044b]; // expected-error {{variably modified type}}
|
|
|
|
const int f5_ci = 1;
|
|
void f5() { char a[][f5_ci] = {""}; } // expected-warning {{variable length array folded to constant array as an extension}}
|
|
|
|
// PR5185
|
|
void pr5185(int a[*]);
|
|
void pr5185(int a[*]) // expected-error {{variable length array must be bound in function definition}}
|
|
{
|
|
}
|
|
|
|
void pr23151(int (*p1)[*]) // expected-error {{variable length array must be bound in function definition}}
|
|
{}
|
|
|
|
// Make sure this isn't treated as an error
|
|
int TransformBug(int a) {
|
|
return sizeof(*(int(*)[({ goto v; v: a;})]) 0); // expected-warning {{use of GNU statement expression extension}}
|
|
}
|
|
|
|
// PR36157
|
|
struct {
|
|
int a[ // expected-error {{variable length array in struct}}
|
|
implicitly_declared() // expected-warning {{implicit declaration}}
|
|
];
|
|
};
|
|
int (*use_implicitly_declared)() = implicitly_declared; // ok, was implicitly declared at file scope
|
|
|
|
void VLAPtrAssign(int size) {
|
|
int array[1][2][3][size][4][5];
|
|
// This is well formed
|
|
int (*p)[2][3][size][4][5] = array;
|
|
// Last array dimension too large
|
|
int (*p2)[2][3][size][4][6] = array; // expected-warning {{incompatible pointer types}}
|
|
// Second array dimension too large
|
|
int (*p3)[20][3][size][4][5] = array; // expected-warning {{incompatible pointer types}}
|
|
|
|
// Not illegal in C, program _might_ be well formed if size == 3.
|
|
int (*p4)[2][size][3][4][5] = array;
|
|
}
|