misc-misplaced-const.cpp
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// RUN: %check_clang_tidy %s misc-misplaced-const %t -- -- -DUSING
// RUN: %check_clang_tidy %s misc-misplaced-const %t -- -- -DTYPEDEF
#ifdef TYPEDEF
typedef int int_;
typedef int *ptr_to_int;
typedef const int *ptr_to_const_int;
#endif
#ifdef USING
using int_ = int;
using ptr_to_int = int *;
using ptr_to_const_int = const int *;
#endif
void const_pointers() {
if (const int *i = 0) {
i = 0;
// *i = 0;
}
if (const int_ *i = 0) {
i = 0;
// *i = 0;
}
if (const ptr_to_const_int i = 0) {
// i = 0;
// *i = 0;
}
// Potentially quite unexpectedly the int can be modified here
// CHECK-MESSAGES: :[[@LINE+1]]:24: warning: 'i' declared with a const-qualified {{.*}}; results in the type being 'int *const' instead of 'const int *'
if (const ptr_to_int i = 0) {
//i = 0;
*i = 0;
}
}
template <typename Ty>
struct S {
const Ty *i;
const Ty &i2;
};
template struct S<int>;
template struct S<ptr_to_int>; // ok
template struct S<ptr_to_const_int>;
template <typename Ty>
struct U {
const Ty *i;
const Ty &i2;
};
template struct U<int *>; // ok
struct T {
typedef void (T::*PMF)();
void f() {
const PMF val = &T::f; // ok
}
};