1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsyntax-only -Wcast-align -verify %s
2
3 // Simple casts.
test0(char * P)4 void test0(char *P) {
5 char *a; short *b; int *c;
6
7 a = (char*) P;
8 a = static_cast<char*>(P);
9 a = reinterpret_cast<char*>(P);
10 typedef char *CharPtr;
11 a = CharPtr(P);
12
13 b = (short*) P; // expected-warning {{cast from 'char *' to 'short *' increases required alignment from 1 to 2}}
14 b = reinterpret_cast<short*>(P);
15 typedef short *ShortPtr;
16 b = ShortPtr(P); // expected-warning {{cast from 'char *' to 'ShortPtr' (aka 'short *') increases required alignment from 1 to 2}}
17
18 c = (int*) P; // expected-warning {{cast from 'char *' to 'int *' increases required alignment from 1 to 4}}
19 c = reinterpret_cast<int*>(P);
20 typedef int *IntPtr;
21 c = IntPtr(P); // expected-warning {{cast from 'char *' to 'IntPtr' (aka 'int *') increases required alignment from 1 to 4}}
22 }
23
24 // Casts from void* are a special case.
test1(void * P)25 void test1(void *P) {
26 char *a; short *b; int *c;
27
28 a = (char*) P;
29 a = static_cast<char*>(P);
30 a = reinterpret_cast<char*>(P);
31 typedef char *CharPtr;
32 a = CharPtr(P);
33
34 b = (short*) P;
35 b = static_cast<short*>(P);
36 b = reinterpret_cast<short*>(P);
37 typedef short *ShortPtr;
38 b = ShortPtr(P);
39
40 c = (int*) P;
41 c = static_cast<int*>(P);
42 c = reinterpret_cast<int*>(P);
43 typedef int *IntPtr;
44 c = IntPtr(P);
45 }
46