summaryrefslogtreecommitdiff
path: root/gcc/testsuite/g++.dg/warn/Wunused-parm-2.C
blob: d4276c0a2cd6be94e5cc4d5e081d0ba5495adc0e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
// { dg-do compile }
// { dg-options "-Wunused -W" }

template <int N>
long
f1 (unsigned long long x)
{
  unsigned long long a = 1;
  const union { unsigned long long l; unsigned int p[2]; } b = { x };
  const union { unsigned long long l; unsigned int p[2]; } c = { a };
  return b.p[0] + c.p[0];
}

template <int N>
int
f2 (int x, int y)
{
  int a = 1;
  int b[] = { 1, 2, x, a, 3, 4 };
  return b[y];
}

template <int N>
int
f3 (int a)	// { dg-warning "unused parameter" }
{
  return 0;
}

template <int N>
int
f4 (int a)	// { dg-warning "set but not used" }
{
  a = 1;
  return 0;
}

template <int N>
int
f5 (int a)
{
  a = 1;
  return a;
}

void
test ()
{
  (void) f1<0> (0);
  (void) f2<0> (0, 0);
  (void) f3<0> (0);
  (void) f4<0> (0);
  (void) f5<0> (0);
}