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// PR c++/107624
// { dg-do run { target c++11 } }
// { dg-options "" }
int n[3];
struct S {
static int &operator[] (int x) { n[0] |= (1 << x); return n[2]; } // { dg-warning "may be a static member function only with" "" { target c++20_down } }
#if __cpp_multidimensional_subscript >= 202211L
static int &operator[] () { n[0] |= (1 << 8); return n[2]; }
static int &operator[] (int y, int z, int w) { n[0] |= (1 << y) | (1 << z) | (1 << w); return n[2]; }
#endif
int s;
};
volatile S s[2];
S &
foo (int x)
{
static S t;
n[1] |= (1 << x);
return t;
}
int
main ()
{
int i = 0;
foo (0) [0]++;
if (n[0] != 1 || n[1] != 1 || n[2] != 1)
__builtin_abort ();
s[i++][2]++;
if (i != 1 || n[0] != 5 || n[1] != 1 || n[2] != 2)
__builtin_abort ();
#if __cpp_multidimensional_subscript >= 202211L
foo (3) []++;
if (n[0] != 261 || n[1] != 9 || n[2] != 3)
__builtin_abort ();
int y = 10;
int z = 10;
int w = 13;
foo (4) [y++, ++z, w++]++;
if (n[0] != 11525 || n[1] != 25 || n[2] != 4
|| y != 11 || z != 11 || w != 14)
__builtin_abort ();
#endif
}
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