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// RUN: %check_clang_tidy %s modernize-redundant-void-arg %t
#define NULL 0
int foo();
void bar();
void bar2();
extern "C" void ecfoo(void);
extern "C" void ecfoo(void) {
}
extern int i;
int j = 1;
int foo(void) {
// CHECK-MESSAGES: :[[@LINE-1]]:9: warning: redundant void argument list in function definition [modernize-redundant-void-arg]
// CHECK-FIXES: {{^}}int foo() {{{$}}
return 0;
}
typedef unsigned int my_uint;
typedef void my_void;
// A function taking void and returning a pointer to function taking void
// and returning int.
int (*returns_fn_void_int(void))(void);
// CHECK-MESSAGES: :[[@LINE-1]]:27: warning: {{.*}} in function declaration
// CHECK-MESSAGES: :[[@LINE-2]]:34: warning: {{.*}} in function declaration
// CHECK-FIXES: {{^}}int (*returns_fn_void_int())();{{$}}
typedef int (*returns_fn_void_int_t(void))(void);
// CHECK-MESSAGES: :[[@LINE-1]]:37: warning: {{.*}} in typedef
// CHECK-MESSAGES: :[[@LINE-2]]:44: warning: {{.*}} in typedef
// CHECK-FIXES: {{^}}typedef int (*returns_fn_void_int_t())();{{$}}
// Should work for type aliases as well as typedef.
using returns_fn_void_int_t2 = int (*(void))(void);
// CHECK-MESSAGES: :[[@LINE-1]]:39: warning: {{.*}} in type alias
// CHECK-MESSAGES: :[[@LINE-2]]:46: warning: {{.*}} in type alias
// CHECK-FIXES: {{^}}using returns_fn_void_int_t2 = int (*())();{{$}}
int (*returns_fn_void_int(void))(void) {
// CHECK-MESSAGES: :[[@LINE-1]]:27: warning: {{.*}} in function definition
// CHECK-MESSAGES: :[[@LINE-2]]:34: warning: {{.*}} in function definition
// CHECK-FIXES: {{^}}int (*returns_fn_void_int())() {{{$}}
return nullptr;
}
// A function taking void and returning a pointer to a function taking void
// and returning a pointer to a function taking void and returning void.
void (*(*returns_fn_returns_fn_void_void(void))(void))(void);
// CHECK-MESSAGES: :[[@LINE-1]]:42: warning: {{.*}} in function declaration
// CHECK-MESSAGES: :[[@LINE-2]]:49: warning: {{.*}} in function declaration
// CHECK-MESSAGES: :[[@LINE-3]]:56: warning: {{.*}} in function declaration
// CHECK-FIXES: {{^}}void (*(*returns_fn_returns_fn_void_void())())();{{$}}
typedef void (*(*returns_fn_returns_fn_void_void_t(void))(void))(void);
// CHECK-MESSAGES: :[[@LINE-1]]:52: warning: {{.*}} in typedef
// CHECK-MESSAGES: :[[@LINE-2]]:59: warning: {{.*}} in typedef
// CHECK-MESSAGES: :[[@LINE-3]]:66: warning: {{.*}} in typedef
// CHECK-FIXES: {{^}}typedef void (*(*returns_fn_returns_fn_void_void_t())())();{{$}}
void (*(*returns_fn_returns_fn_void_void(void))(void))(void) {
// CHECK-MESSAGES: :[[@LINE-1]]:42: warning: {{.*}} in function definition
// CHECK-MESSAGES: :[[@LINE-2]]:49: warning: {{.*}} in function definition
// CHECK-MESSAGES: :[[@LINE-3]]:56: warning: {{.*}} in function definition
// CHECK-FIXES: {{^}}void (*(*returns_fn_returns_fn_void_void())())() {{{$}}
return nullptr;
}
void bar(void) {
// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: {{.*}} in function definition
// CHECK-FIXES: {{^}}void bar() {{{$}}
}
void op_fn(int i) {
}
class gronk {
public:
gronk();
~gronk();
void foo();
void bar();
void bar2
();
void operation(int i) { }
private:
int m_i;
int *m_pi;
float m_f;
float *m_pf;
double m_d;
double *m_pd;
void (*f1)(void);
// CHECK-MESSAGES: :[[@LINE-1]]:16: warning: {{.*}} in field declaration
// CHECK-FIXES: {{^ }}void (*f1)();{{$}}
void (*op)(int i);
void (gronk::*p1)(void);
// CHECK-MESSAGES: :[[@LINE-1]]:21: warning: {{.*}} in field declaration
// CHECK-FIXES: {{^ }}void (gronk::*p1)();{{$}}
int (gronk::*p_mi);
void (gronk::*p2)(int);
void (*(*returns_fn_returns_fn_void_void(void))(void))(void);
// CHECK-MESSAGES: :[[@LINE-1]]:44: warning: {{.*}} in function declaration
// CHECK-MESSAGES: :[[@LINE-2]]:51: warning: {{.*}} in function declaration
// CHECK-MESSAGES: :[[@LINE-3]]:58: warning: {{.*}} in function declaration
// CHECK-FIXES: {{^}} void (*(*returns_fn_returns_fn_void_void())())();{{$}}
void (*(*(gronk::*returns_fn_returns_fn_void_void_mem)(void))(void))(void);
// CHECK-MESSAGES: :[[@LINE-1]]:58: warning: {{.*}} in field declaration
// CHECK-MESSAGES: :[[@LINE-2]]:65: warning: {{.*}} in field declaration
// CHECK-MESSAGES: :[[@LINE-3]]:72: warning: {{.*}} in field declaration
// CHECK-FIXES: {{^}} void (*(*(gronk::*returns_fn_returns_fn_void_void_mem)())())();{{$}}
};
int i;
int *pi;
void *pv = (void *) pi;
float f;
float *fi;
double d;
double *pd;
void (*f1)(void);
// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: {{.*}} in variable declaration
// CHECK-FIXES: {{^}}void (*f1)();{{$}}
void (*f2)(void) = nullptr;
// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: {{.*}} in variable declaration with initializer
// CHECK-FIXES: {{^}}void (*f2)() = nullptr;{{$}}
void (*f2b)(void)(nullptr);
// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: {{.*}} in variable declaration with initializer
// CHECK-FIXES: {{^}}void (*f2b)()(nullptr);{{$}}
void (*f2c)(void){nullptr};
// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: {{.*}} in variable declaration with initializer
// CHECK-FIXES: {{^}}void (*f2c)(){nullptr};{{$}}
void (*f2d)(void) = NULL;
// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: {{.*}} in variable declaration with initializer
// CHECK-FIXES: {{^}}void (*f2d)() = NULL;{{$}}
void (*f2e)(void)(NULL);
// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: {{.*}} in variable declaration with initializer
// CHECK-FIXES: {{^}}void (*f2e)()(NULL);{{$}}
void (*f2f)(void){NULL};
// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: {{.*}} in variable declaration with initializer
// CHECK-FIXES: {{^}}void (*f2f)(){NULL};{{$}}
void (*f3)(void) = bar;
// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: {{.*}} in variable declaration with initializer
// CHECK-FIXES: {{^}}void (*f3)() = bar;{{$}}
void (*o1)(int i);
void (*o2)(int i) = nullptr;
void (*o3)(int i)(nullptr);
void (*o4)(int i){nullptr};
void (*o5)(int i) = NULL;
void (*o6)(int i)(NULL);
void (*o7)(int i){NULL};
void (*o8)(int i) = op_fn;
void (*fa)();
void (*fb)() = nullptr;
void (*fc)() = bar;
typedef void (function_ptr)(void);
// CHECK-MESSAGES: :[[@LINE-1]]:29: warning: {{.*}} in typedef
// CHECK-FIXES: {{^}}typedef void (function_ptr)();{{$}}
// intentionally not LLVM style to check preservation of whitesapce
typedef void (function_ptr2)
(
void
);
// CHECK-MESSAGES: :[[@LINE-2]]:9: warning: {{.*}} in typedef
// CHECK-FIXES: {{^typedef void \(function_ptr2\)$}}
// CHECK-FIXES-NEXT: {{^ \($}}
// CHECK-FIXES-NEXT: {{^ $}}
// CHECK-FIXES-NEXT: {{^ \);$}}
// intentionally not LLVM style to check preservation of whitesapce
typedef
void
(
*
(
*
returns_fn_returns_fn_void_void_t2
(
void
)
)
(
void
)
)
(
void
)
;
// CHECK-MESSAGES: :[[@LINE-11]]:1: warning: {{.*}} in typedef
// CHECK-MESSAGES: :[[@LINE-8]]:1: warning: {{.*}} in typedef
// CHECK-MESSAGES: :[[@LINE-5]]:1: warning: {{.*}} in typedef
// CHECK-FIXES: {{^typedef$}}
// CHECK-FIXES-NEXT: {{^void$}}
// CHECK-FIXES-NEXT: {{^\($}}
// CHECK-FIXES-NEXT: {{^\*$}}
// CHECK-FIXES-NEXT: {{^\($}}
// CHECK-FIXES-NEXT: {{^\*$}}
// CHECK-FIXES-NEXT: {{^returns_fn_returns_fn_void_void_t2$}}
// CHECK-FIXES-NEXT: {{^\($}}
// CHECK-FIXES-NOT: {{[^ ]}}
// CHECK-FIXES: {{^\)$}}
// CHECK-FIXES-NEXT: {{^\)$}}
// CHECK-FIXES-NEXT: {{^\($}}
// CHECK-FIXES-NOT: {{[^ ]}}
// CHECK-FIXES: {{^\)$}}
// CHECK-FIXES-NEXT: {{^\)$}}
// CHECK-FIXES-NEXT: {{^\($}}
// CHECK-FIXES-NOT: {{[^ ]}}
// CHECK-FIXES: {{^\)$}}
// CHECK-FIXES-NEXT: {{^;$}}
void (gronk::*p1)(void);
// CHECK-MESSAGES: :[[@LINE-1]]:19: warning: {{.*}} in variable declaration
// CHECK-FIXES: {{^}}void (gronk::*p1)();{{$}}
void (gronk::*p2)(void) = &gronk::foo;
// CHECK-MESSAGES: :[[@LINE-1]]:19: warning: {{.*}} in variable declaration with initializer
// CHECK-FIXES: {{^}}void (gronk::*p2)() = &gronk::foo;{{$}}
typedef void (gronk::*member_function_ptr)(void);
// CHECK-MESSAGES: :[[@LINE-1]]:44: warning: {{.*}} in typedef
// CHECK-FIXES: {{^}}typedef void (gronk::*member_function_ptr)();{{$}}
// intentionally not LLVM style to check preservation of whitesapce
typedef void (gronk::*member_function_ptr2)
(
void
);
// CHECK-MESSAGES: :[[@LINE-2]]:9: warning: {{.*}} in typedef
// CHECK-FIXES: {{^typedef void \(gronk::\*member_function_ptr2\)$}}
// CHECK-FIXES-NEXT: {{^ \($}}
// CHECK-FIXES-NEXT: {{^ $}}
// CHECK-FIXES-NEXT: {{^ \);$}}
void gronk::foo() {
void (*f1)(void) = &::bar;
// CHECK-MESSAGES: :[[@LINE-1]]:14: warning: {{.*}} in variable declaration with initializer
// CHECK-FIXES: {{^ }}void (*f1)() = &::bar;{{$}}
void (*f2)(void);
// CHECK-MESSAGES: :[[@LINE-1]]:14: warning: {{.*}} in variable declaration
// CHECK-FIXES: {{^ }}void (*f2)();{{$}}
// intentionally not LLVM style to check preservation of whitesapce
void (*f3)
(
void
);
// CHECK-MESSAGES: :[[@LINE-2]]:11: warning: {{.*}} in variable declaration
// CHECK-FIXES: {{^ }}void (*f3){{$}}
// CHECK-FIXES-NEXT: {{^ \($}}
// CHECK-FIXES-NEXT: {{^ $}}
// CHECK-FIXES-NEXT: {{^ \);$}}
}
void gronk::bar(void) {
// CHECK-MESSAGES: :[[@LINE-1]]:17: warning: {{.*}} in function definition
// CHECK-FIXES: {{^}}void gronk::bar() {{{$}}
void (gronk::*p3)(void) = &gronk::foo;
// CHECK-MESSAGES: :[[@LINE-1]]:21: warning: {{.*}} in variable declaration with initializer
// CHECK-FIXES: {{^ }}void (gronk::*p3)() = &gronk::foo;{{$}}
void (gronk::*p4)(void);
// CHECK-MESSAGES: :[[@LINE-1]]:21: warning: {{.*}} in variable declaration
// CHECK-FIXES: {{^ }}void (gronk::*p4)();{{$}}
// intentionally not LLVM style to check preservation of whitesapce
void (gronk::*p5)
(
void
);
// CHECK-MESSAGES: :[[@LINE-2]]:11: warning: {{.*}} in variable declaration
// CHECK-FIXES: {{^ }}void (gronk::*p5){{$}}
// CHECK-FIXES-NEXT: {{^ \($}}
// CHECK-FIXES-NExT: {{^ $}}
// CHECK-FIXES-NExT: {{^ \);$}}
}
// intentionally not LLVM style to check preservation of whitesapce
void gronk::bar2
(
void
)
// CHECK-MESSAGES: :[[@LINE-2]]:3: warning: {{.*}} in function definition
// CHECK-FIXES: {{^void gronk::bar2$}}
// CHECK-FIXES-NEXT: {{^ \($}}
// CHECK-FIXES-NEXT: {{^ $}}
// CHECK-FIXES-NEXT: {{^ \)$}}
{
}
gronk::gronk(void)
// CHECK-MESSAGES: :[[@LINE-1]]:14: warning: {{.*}} in function definition
// CHECK-FIXES: {{^}}gronk::gronk(){{$}}
: f1(nullptr),
p1(nullptr) {
}
gronk::~gronk(void) {
// CHECK-MESSAGES: :[[@LINE-1]]:15: warning: {{.*}} in function definition
// CHECK-FIXES: {{^}}gronk::~gronk() {{{$}}
}
class nutter {
public:
nutter();
};
nutter::nutter(void) {
// CHECK-MESSAGES: :[[@LINE-1]]:16: warning: {{.*}} in function definition
// CHECK-FIXES: {{^}}nutter::nutter() {{{$}}
void (*f3)(void) = static_cast<void (*)(void)>(0);
// CHECK-MESSAGES: :[[@LINE-1]]:14: warning: {{.*}} in variable declaration with initializer
// CHECK-MESSAGES: :[[@LINE-2]]:43: warning: {{.*}} in named cast
// CHECK-FIXES: void (*f3)() = static_cast<void (*)()>(0);{{$}}
void (*f4)(void) = (void (*)(void)) 0;
// CHECK-MESSAGES: :[[@LINE-1]]:14: warning: {{.*}} in variable declaration with initializer
// CHECK-MESSAGES: :[[@LINE-2]]:32: warning: {{.*}} in cast expression
// CHECK-FIXES: void (*f4)() = (void (*)()) 0;{{$}}
void (*f5)(void) = reinterpret_cast<void (*)(void)>(0);
// CHECK-MESSAGES: :[[@LINE-1]]:14: warning: {{.*}} in variable declaration with initializer
// CHECK-MESSAGES: :[[@LINE-2]]:48: warning: {{.*}} in named cast
// CHECK-FIXES: void (*f5)() = reinterpret_cast<void (*)()>(0);{{$}}
// intentionally not LLVM style to check preservation of whitesapce
void (*f6)(void) = static_cast<void (*)
(
void
)>(0);
// CHECK-MESSAGES: :[[@LINE-4]]:14: warning: {{.*}} in variable declaration with initializer
// CHECK-MESSAGES: :[[@LINE-3]]:11: warning: {{.*}} in named cast
// CHECK-FIXES: {{^ }}void (*f6)() = static_cast<void (*){{$}}
// CHECK-FIXES-NEXT: {{^ \($}}
// CHECK-FIXES-NEXT: {{^ $}}
// CHECK-FIXES-NEXT: {{^ }})>(0);{{$}}
// intentionally not LLVM style to check preservation of whitesapce
void (*f7)(void) = (void (*)
(
void
)) 0;
// CHECK-MESSAGES: :[[@LINE-4]]:14: warning: {{.*}} in variable declaration with initializer
// CHECK-MESSAGES: :[[@LINE-3]]:11: warning: {{.*}} in cast expression
// CHECK-FIXES: {{^ }}void (*f7)() = (void (*){{$}}
// CHECK-FIXES-NEXT: {{^ \($}}
// CHECK-FIXES-NEXT: {{^ $}}
// CHECK-FIXES-NEXT: {{^ \)\) 0;$}}
// intentionally not LLVM style to check preservation of whitesapce
void (*f8)(void) = reinterpret_cast<void (*)
(
void
)>(0);
// CHECK-MESSAGES: :[[@LINE-4]]:14: warning: {{.*}} in variable declaration with initializer
// CHECK-MESSAGES: :[[@LINE-3]]:11: warning: {{.*}} in named cast
// CHECK-FIXES: {{^ }}void (*f8)() = reinterpret_cast<void (*){{$}}
// CHECK-FIXES-NEXT: {{^ \($}}
// CHECK-FIXES-NEXT: {{^ $}}
// CHECK-FIXES-NEXT: {{^ \)>\(0\);$}}
void (*o1)(int) = static_cast<void (*)(int)>(0);
void (*o2)(int) = (void (*)(int)) 0;
void (*o3)(int) = reinterpret_cast<void (*)(int)>(0);
}
class generator {
public:
int operator()(void) { return 1; }
// CHECK-MESSAGES: :[[@LINE-1]]:18: warning: {{.*}} in function definition
// CHECK-FIXES: {{^ }}int operator()() { return 1; }{{$}}
};
void test_lambda_functions() {
auto lamb_duh = [](void (*fn)(void)) { (*fn)(); };
// CHECK-MESSAGES: :[[@LINE-1]]:33: warning: {{.*}} in variable declaration
// CHECK-FIXES: {{^ }}auto lamb_duh = [](void (*fn)()) { (*fn)(); };{{$}}
auto lambda_generator = [](void) { return 1; };
// CHECK-MESSAGES: :[[@LINE-1]]:30: warning: {{.*}} in lambda expression
// CHECK-FIXES: {{^ }}auto lambda_generator = []() { return 1; };{{$}}
auto gen2 = []() { return 1; };
auto gen3 = []{ return 1; };
auto void_returner = [](void) -> void (*)(void) { return f1; };
// CHECK-MESSAGES: [[@LINE-1]]:27: warning: {{.*}} in lambda expression
// CHECK-MESSAGES: [[@LINE-2]]:45: warning: {{.*}} in lambda expression
// CHECK-FIXES: {{^ }}auto void_returner = []() -> void (*)() { return f1; };{{$}}
}
#define M(x) x
M(void inmacro(void) {})
// CHECK-MESSAGES: :[[@LINE-1]]:16: warning: {{.*}} in function definition
// CHECK-FIXES: M(void inmacro() {})
#define F(A, B) \
struct F_##A##_##B { \
F_##A##_##B(void); \
}; \
F_##A##_##B::F_##A##_##B(void)
F(Foo, Bar) {
}
struct DefinitionWithNoBody {
DefinitionWithNoBody(void) = delete;
// CHECK-MESSAGES: :[[@LINE-1]]:24: warning: {{.*}} in function definition
// CHECK-FIXES: DefinitionWithNoBody() = delete;
};
|
