forked from OSchip/llvm-project
559 lines
18 KiB
C++
559 lines
18 KiB
C++
// RUN: %check_clang_tidy %s modernize-redundant-void-arg %t
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#define NULL 0
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int foo();
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void bar();
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void bar2();
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extern "C" void ecfoo(void);
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extern "C" void ecfoo(void) {
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}
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extern int i;
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int j = 1;
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int foo(void) {
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// CHECK-MESSAGES: :[[@LINE-1]]:9: warning: redundant void argument list in function definition [modernize-redundant-void-arg]
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// CHECK-FIXES: {{^}}int foo() {{{$}}
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return 0;
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}
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typedef unsigned int my_uint;
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typedef void my_void;
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// A function taking void and returning a pointer to function taking void
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// and returning int.
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int (*returns_fn_void_int(void))(void);
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// CHECK-MESSAGES: :[[@LINE-1]]:27: warning: {{.*}} in function declaration
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// CHECK-MESSAGES: :[[@LINE-2]]:34: warning: {{.*}} in function declaration
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// CHECK-FIXES: {{^}}int (*returns_fn_void_int())();{{$}}
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typedef int (*returns_fn_void_int_t(void))(void);
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// CHECK-MESSAGES: :[[@LINE-1]]:37: warning: {{.*}} in typedef
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// CHECK-MESSAGES: :[[@LINE-2]]:44: warning: {{.*}} in typedef
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// CHECK-FIXES: {{^}}typedef int (*returns_fn_void_int_t())();{{$}}
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// Should work for type aliases as well as typedef.
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using returns_fn_void_int_t2 = int (*(void))(void);
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// CHECK-MESSAGES: :[[@LINE-1]]:39: warning: {{.*}} in type alias
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// CHECK-MESSAGES: :[[@LINE-2]]:46: warning: {{.*}} in type alias
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// CHECK-FIXES: {{^}}using returns_fn_void_int_t2 = int (*())();{{$}}
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int (*returns_fn_void_int(void))(void) {
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// CHECK-MESSAGES: :[[@LINE-1]]:27: warning: {{.*}} in function definition
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// CHECK-MESSAGES: :[[@LINE-2]]:34: warning: {{.*}} in function definition
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// CHECK-FIXES: {{^}}int (*returns_fn_void_int())() {{{$}}
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return nullptr;
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}
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// A function taking void and returning a pointer to a function taking void
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// and returning a pointer to a function taking void and returning void.
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void (*(*returns_fn_returns_fn_void_void(void))(void))(void);
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// CHECK-MESSAGES: :[[@LINE-1]]:42: warning: {{.*}} in function declaration
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// CHECK-MESSAGES: :[[@LINE-2]]:49: warning: {{.*}} in function declaration
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// CHECK-MESSAGES: :[[@LINE-3]]:56: warning: {{.*}} in function declaration
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// CHECK-FIXES: {{^}}void (*(*returns_fn_returns_fn_void_void())())();{{$}}
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typedef void (*(*returns_fn_returns_fn_void_void_t(void))(void))(void);
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// CHECK-MESSAGES: :[[@LINE-1]]:52: warning: {{.*}} in typedef
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// CHECK-MESSAGES: :[[@LINE-2]]:59: warning: {{.*}} in typedef
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// CHECK-MESSAGES: :[[@LINE-3]]:66: warning: {{.*}} in typedef
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// CHECK-FIXES: {{^}}typedef void (*(*returns_fn_returns_fn_void_void_t())())();{{$}}
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void (*(*returns_fn_returns_fn_void_void(void))(void))(void) {
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// CHECK-MESSAGES: :[[@LINE-1]]:42: warning: {{.*}} in function definition
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// CHECK-MESSAGES: :[[@LINE-2]]:49: warning: {{.*}} in function definition
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// CHECK-MESSAGES: :[[@LINE-3]]:56: warning: {{.*}} in function definition
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// CHECK-FIXES: {{^}}void (*(*returns_fn_returns_fn_void_void())())() {{{$}}
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return nullptr;
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}
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void bar(void) {
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// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: {{.*}} in function definition
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// CHECK-FIXES: {{^}}void bar() {{{$}}
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}
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void op_fn(int i) {
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}
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class gronk {
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public:
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gronk();
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~gronk();
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void foo();
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void bar();
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void bar2
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();
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void operation(int i) { }
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private:
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int m_i;
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int *m_pi;
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float m_f;
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float *m_pf;
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double m_d;
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double *m_pd;
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void (*f1)(void);
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// CHECK-MESSAGES: :[[@LINE-1]]:16: warning: {{.*}} in field declaration
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// CHECK-FIXES: {{^ }}void (*f1)();{{$}}
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void (*op)(int i);
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void (gronk::*p1)(void);
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// CHECK-MESSAGES: :[[@LINE-1]]:21: warning: {{.*}} in field declaration
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// CHECK-FIXES: {{^ }}void (gronk::*p1)();{{$}}
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int (gronk::*p_mi);
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void (gronk::*p2)(int);
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void (*(*returns_fn_returns_fn_void_void(void))(void))(void);
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// CHECK-MESSAGES: :[[@LINE-1]]:44: warning: {{.*}} in function declaration
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// CHECK-MESSAGES: :[[@LINE-2]]:51: warning: {{.*}} in function declaration
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// CHECK-MESSAGES: :[[@LINE-3]]:58: warning: {{.*}} in function declaration
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// CHECK-FIXES: {{^}} void (*(*returns_fn_returns_fn_void_void())())();{{$}}
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void (*(*(gronk::*returns_fn_returns_fn_void_void_mem)(void))(void))(void);
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// CHECK-MESSAGES: :[[@LINE-1]]:58: warning: {{.*}} in field declaration
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// CHECK-MESSAGES: :[[@LINE-2]]:65: warning: {{.*}} in field declaration
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// CHECK-MESSAGES: :[[@LINE-3]]:72: warning: {{.*}} in field declaration
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// CHECK-FIXES: {{^}} void (*(*(gronk::*returns_fn_returns_fn_void_void_mem)())())();{{$}}
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};
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int i;
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int *pi;
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void *pv = (void *) pi;
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float f;
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float *fi;
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double d;
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double *pd;
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void (*f1)(void);
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// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: {{.*}} in variable declaration
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// CHECK-FIXES: {{^}}void (*f1)();{{$}}
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void (*f2)(void) = nullptr;
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// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: {{.*}} in variable declaration with initializer
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// CHECK-FIXES: {{^}}void (*f2)() = nullptr;{{$}}
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void (*f2b)(void)(nullptr);
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// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: {{.*}} in variable declaration with initializer
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// CHECK-FIXES: {{^}}void (*f2b)()(nullptr);{{$}}
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void (*f2c)(void){nullptr};
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// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: {{.*}} in variable declaration with initializer
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// CHECK-FIXES: {{^}}void (*f2c)(){nullptr};{{$}}
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void (*f2d)(void) = NULL;
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// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: {{.*}} in variable declaration with initializer
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// CHECK-FIXES: {{^}}void (*f2d)() = NULL;{{$}}
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void (*f2e)(void)(NULL);
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// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: {{.*}} in variable declaration with initializer
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// CHECK-FIXES: {{^}}void (*f2e)()(NULL);{{$}}
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void (*f2f)(void){NULL};
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// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: {{.*}} in variable declaration with initializer
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// CHECK-FIXES: {{^}}void (*f2f)(){NULL};{{$}}
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void (*f3)(void) = bar;
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// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: {{.*}} in variable declaration with initializer
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// CHECK-FIXES: {{^}}void (*f3)() = bar;{{$}}
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void (*o1)(int i);
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void (*o2)(int i) = nullptr;
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void (*o3)(int i)(nullptr);
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void (*o4)(int i){nullptr};
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void (*o5)(int i) = NULL;
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void (*o6)(int i)(NULL);
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void (*o7)(int i){NULL};
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void (*o8)(int i) = op_fn;
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void (*fa)();
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void (*fb)() = nullptr;
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void (*fc)() = bar;
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typedef void (function_ptr)(void);
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// CHECK-MESSAGES: :[[@LINE-1]]:29: warning: {{.*}} in typedef
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// CHECK-FIXES: {{^}}typedef void (function_ptr)();{{$}}
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// intentionally not LLVM style to check preservation of whitesapce
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typedef void (function_ptr2)
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(
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void
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);
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// CHECK-MESSAGES: :[[@LINE-2]]:9: warning: {{.*}} in typedef
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// CHECK-FIXES: {{^typedef void \(function_ptr2\)$}}
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// CHECK-FIXES-NEXT: {{^ \($}}
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// CHECK-FIXES-NEXT: {{^ $}}
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// CHECK-FIXES-NEXT: {{^ \);$}}
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// intentionally not LLVM style to check preservation of whitesapce
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typedef
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void
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(
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*
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(
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*
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returns_fn_returns_fn_void_void_t2
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(
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void
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)
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)
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(
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void
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)
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)
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(
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void
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)
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;
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// CHECK-MESSAGES: :[[@LINE-11]]:1: warning: {{.*}} in typedef
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// CHECK-MESSAGES: :[[@LINE-8]]:1: warning: {{.*}} in typedef
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// CHECK-MESSAGES: :[[@LINE-5]]:1: warning: {{.*}} in typedef
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// CHECK-FIXES: {{^typedef$}}
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// CHECK-FIXES-NEXT: {{^void$}}
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// CHECK-FIXES-NEXT: {{^\($}}
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// CHECK-FIXES-NEXT: {{^\*$}}
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// CHECK-FIXES-NEXT: {{^\($}}
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// CHECK-FIXES-NEXT: {{^\*$}}
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// CHECK-FIXES-NEXT: {{^returns_fn_returns_fn_void_void_t2$}}
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// CHECK-FIXES-NEXT: {{^\($}}
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// CHECK-FIXES-NOT: {{[^ ]}}
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// CHECK-FIXES: {{^\)$}}
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// CHECK-FIXES-NEXT: {{^\)$}}
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// CHECK-FIXES-NEXT: {{^\($}}
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// CHECK-FIXES-NOT: {{[^ ]}}
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// CHECK-FIXES: {{^\)$}}
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// CHECK-FIXES-NEXT: {{^\)$}}
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// CHECK-FIXES-NEXT: {{^\($}}
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// CHECK-FIXES-NOT: {{[^ ]}}
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// CHECK-FIXES: {{^\)$}}
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// CHECK-FIXES-NEXT: {{^;$}}
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void (gronk::*p1)(void);
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// CHECK-MESSAGES: :[[@LINE-1]]:19: warning: {{.*}} in variable declaration
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// CHECK-FIXES: {{^}}void (gronk::*p1)();{{$}}
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void (gronk::*p2)(void) = &gronk::foo;
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// CHECK-MESSAGES: :[[@LINE-1]]:19: warning: {{.*}} in variable declaration with initializer
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// CHECK-FIXES: {{^}}void (gronk::*p2)() = &gronk::foo;{{$}}
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typedef void (gronk::*member_function_ptr)(void);
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// CHECK-MESSAGES: :[[@LINE-1]]:44: warning: {{.*}} in typedef
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// CHECK-FIXES: {{^}}typedef void (gronk::*member_function_ptr)();{{$}}
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// intentionally not LLVM style to check preservation of whitesapce
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typedef void (gronk::*member_function_ptr2)
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(
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void
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);
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// CHECK-MESSAGES: :[[@LINE-2]]:9: warning: {{.*}} in typedef
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// CHECK-FIXES: {{^typedef void \(gronk::\*member_function_ptr2\)$}}
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// CHECK-FIXES-NEXT: {{^ \($}}
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// CHECK-FIXES-NEXT: {{^ $}}
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// CHECK-FIXES-NEXT: {{^ \);$}}
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void gronk::foo() {
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void (*f1)(void) = &::bar;
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// CHECK-MESSAGES: :[[@LINE-1]]:14: warning: {{.*}} in variable declaration with initializer
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// CHECK-FIXES: {{^ }}void (*f1)() = &::bar;{{$}}
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void (*f2)(void);
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// CHECK-MESSAGES: :[[@LINE-1]]:14: warning: {{.*}} in variable declaration
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// CHECK-FIXES: {{^ }}void (*f2)();{{$}}
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// intentionally not LLVM style to check preservation of whitesapce
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void (*f3)
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(
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void
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);
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// CHECK-MESSAGES: :[[@LINE-2]]:11: warning: {{.*}} in variable declaration
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// CHECK-FIXES: {{^ }}void (*f3){{$}}
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// CHECK-FIXES-NEXT: {{^ \($}}
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// CHECK-FIXES-NEXT: {{^ $}}
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// CHECK-FIXES-NEXT: {{^ \);$}}
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}
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void gronk::bar(void) {
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// CHECK-MESSAGES: :[[@LINE-1]]:17: warning: {{.*}} in function definition
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// CHECK-FIXES: {{^}}void gronk::bar() {{{$}}
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void (gronk::*p3)(void) = &gronk::foo;
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// CHECK-MESSAGES: :[[@LINE-1]]:21: warning: {{.*}} in variable declaration with initializer
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// CHECK-FIXES: {{^ }}void (gronk::*p3)() = &gronk::foo;{{$}}
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void (gronk::*p4)(void);
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// CHECK-MESSAGES: :[[@LINE-1]]:21: warning: {{.*}} in variable declaration
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// CHECK-FIXES: {{^ }}void (gronk::*p4)();{{$}}
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// intentionally not LLVM style to check preservation of whitesapce
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void (gronk::*p5)
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(
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void
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);
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// CHECK-MESSAGES: :[[@LINE-2]]:11: warning: {{.*}} in variable declaration
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// CHECK-FIXES: {{^ }}void (gronk::*p5){{$}}
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// CHECK-FIXES-NEXT: {{^ \($}}
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// CHECK-FIXES-NExT: {{^ $}}
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// CHECK-FIXES-NExT: {{^ \);$}}
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}
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// intentionally not LLVM style to check preservation of whitesapce
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void gronk::bar2
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(
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void
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)
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// CHECK-MESSAGES: :[[@LINE-2]]:3: warning: {{.*}} in function definition
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// CHECK-FIXES: {{^void gronk::bar2$}}
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// CHECK-FIXES-NEXT: {{^ \($}}
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// CHECK-FIXES-NEXT: {{^ $}}
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// CHECK-FIXES-NEXT: {{^ \)$}}
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{
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}
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gronk::gronk(void)
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// CHECK-MESSAGES: :[[@LINE-1]]:14: warning: {{.*}} in function definition
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// CHECK-FIXES: {{^}}gronk::gronk(){{$}}
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: f1(nullptr),
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p1(nullptr) {
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}
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gronk::~gronk(void) {
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// CHECK-MESSAGES: :[[@LINE-1]]:15: warning: {{.*}} in function definition
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// CHECK-FIXES: {{^}}gronk::~gronk() {{{$}}
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}
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class nutter {
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public:
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nutter();
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};
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nutter::nutter(void) {
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// CHECK-MESSAGES: :[[@LINE-1]]:16: warning: {{.*}} in function definition
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// CHECK-FIXES: {{^}}nutter::nutter() {{{$}}
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void (*f3)(void) = static_cast<void (*)(void)>(0);
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// CHECK-MESSAGES: :[[@LINE-1]]:14: warning: {{.*}} in variable declaration with initializer
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// CHECK-MESSAGES: :[[@LINE-2]]:43: warning: {{.*}} in named cast
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// CHECK-FIXES: void (*f3)() = static_cast<void (*)()>(0);{{$}}
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void (*f4)(void) = (void (*)(void)) 0;
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// CHECK-MESSAGES: :[[@LINE-1]]:14: warning: {{.*}} in variable declaration with initializer
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// CHECK-MESSAGES: :[[@LINE-2]]:32: warning: {{.*}} in cast expression
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// CHECK-FIXES: void (*f4)() = (void (*)()) 0;{{$}}
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void (*f5)(void) = reinterpret_cast<void (*)(void)>(0);
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// CHECK-MESSAGES: :[[@LINE-1]]:14: warning: {{.*}} in variable declaration with initializer
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// CHECK-MESSAGES: :[[@LINE-2]]:48: warning: {{.*}} in named cast
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// CHECK-FIXES: void (*f5)() = reinterpret_cast<void (*)()>(0);{{$}}
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// intentionally not LLVM style to check preservation of whitesapce
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void (*f6)(void) = static_cast<void (*)
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(
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void
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)>(0);
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// CHECK-MESSAGES: :[[@LINE-4]]:14: warning: {{.*}} in variable declaration with initializer
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// CHECK-MESSAGES: :[[@LINE-3]]:11: warning: {{.*}} in named cast
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// CHECK-FIXES: {{^ }}void (*f6)() = static_cast<void (*){{$}}
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// CHECK-FIXES-NEXT: {{^ \($}}
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// CHECK-FIXES-NEXT: {{^ $}}
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// CHECK-FIXES-NEXT: {{^ }})>(0);{{$}}
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// intentionally not LLVM style to check preservation of whitesapce
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void (*f7)(void) = (void (*)
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(
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void
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)) 0;
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// CHECK-MESSAGES: :[[@LINE-4]]:14: warning: {{.*}} in variable declaration with initializer
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// CHECK-MESSAGES: :[[@LINE-3]]:11: warning: {{.*}} in cast expression
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// CHECK-FIXES: {{^ }}void (*f7)() = (void (*){{$}}
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// CHECK-FIXES-NEXT: {{^ \($}}
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// CHECK-FIXES-NEXT: {{^ $}}
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// CHECK-FIXES-NEXT: {{^ \)\) 0;$}}
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// intentionally not LLVM style to check preservation of whitesapce
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void (*f8)(void) = reinterpret_cast<void (*)
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(
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void
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)>(0);
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// CHECK-MESSAGES: :[[@LINE-4]]:14: warning: {{.*}} in variable declaration with initializer
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// CHECK-MESSAGES: :[[@LINE-3]]:11: warning: {{.*}} in named cast
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// CHECK-FIXES: {{^ }}void (*f8)() = reinterpret_cast<void (*){{$}}
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// CHECK-FIXES-NEXT: {{^ \($}}
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// CHECK-FIXES-NEXT: {{^ $}}
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// CHECK-FIXES-NEXT: {{^ \)>\(0\);$}}
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void (*o1)(int) = static_cast<void (*)(int)>(0);
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void (*o2)(int) = (void (*)(int)) 0;
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void (*o3)(int) = reinterpret_cast<void (*)(int)>(0);
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}
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class generator {
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public:
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int operator()(void) { return 1; }
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// CHECK-MESSAGES: :[[@LINE-1]]:18: warning: {{.*}} in function definition
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// CHECK-FIXES: {{^ }}int operator()() { return 1; }{{$}}
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};
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void test_lambda_functions() {
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auto lamb_duh = [](void (*fn)(void)) { (*fn)(); };
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// CHECK-MESSAGES: :[[@LINE-1]]:33: warning: {{.*}} in variable declaration
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// CHECK-FIXES: {{^ }}auto lamb_duh = [](void (*fn)()) { (*fn)(); };{{$}}
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auto lambda_generator = [](void) { return 1; };
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// CHECK-MESSAGES: :[[@LINE-1]]:30: warning: {{.*}} in lambda expression
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// CHECK-FIXES: {{^ }}auto lambda_generator = []() { return 1; };{{$}}
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auto gen2 = []() { return 1; };
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auto gen3 = []{ return 1; };
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auto void_returner = [](void) -> void (*)(void) { return f1; };
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// CHECK-MESSAGES: [[@LINE-1]]:27: warning: {{.*}} in lambda expression
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// CHECK-MESSAGES: [[@LINE-2]]:45: warning: {{.*}} in lambda expression
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// CHECK-FIXES: {{^ }}auto void_returner = []() -> void (*)() { return f1; };{{$}}
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}
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#define M(x) x
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M(void inmacro(void) {})
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// CHECK-MESSAGES: :[[@LINE-1]]:16: warning: {{.*}} in function definition
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// CHECK-FIXES: M(void inmacro() {})
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#define F(A, B) \
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struct F_##A##_##B { \
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F_##A##_##B(void); \
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}; \
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F_##A##_##B::F_##A##_##B(void)
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F(Foo, Bar) {
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}
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struct DefinitionWithNoBody {
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DefinitionWithNoBody(void) = delete;
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// CHECK-MESSAGES: :[[@LINE-1]]:24: warning: {{.*}} in function definition
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// CHECK-FIXES: DefinitionWithNoBody() = delete;
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};
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#define BODY {}
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#define LAMBDA1 [](void){}
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// CHECK-MESSAGES: :[[@LINE-1]]:20: warning: redundant void argument list in lambda expression [modernize-redundant-void-arg]
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// CHECK-FIXES: LAMBDA1 [](){}
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#define LAMBDA2 [](void)BODY
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// CHECK-MESSAGES: :[[@LINE-1]]:20: warning: redundant void argument list in lambda expression [modernize-redundant-void-arg]
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// CHECK-FIXES: LAMBDA2 []()BODY
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#define LAMBDA3(captures, args, body) captures args body
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#define WRAP(...) __VA_ARGS__
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#define LAMBDA4 (void)LAMBDA3([],(void),BODY)
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// CHECK-MESSAGES: :[[@LINE-1]]:35: warning: redundant void argument list in lambda expression [modernize-redundant-void-arg]
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// CHECK-FIXES: LAMBDA4 (void)LAMBDA3([],(),BODY)
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#define LAMBDA5 []() -> void (*)(void) {return BODY;}
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// CHECK-MESSAGES: :[[@LINE-1]]:34: warning: redundant void argument list in lambda expression [modernize-redundant-void-arg]
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// CHECK-FIXES: LAMBDA5 []() -> void (*)() {return BODY;}
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void lambda_expression_with_macro_test(){
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(void)LAMBDA1;
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(void)LAMBDA2;
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(void)LAMBDA3([], (void), BODY);
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// CHECK-MESSAGES: :[[@LINE-1]]:22: warning: redundant void argument list in lambda expression [modernize-redundant-void-arg]
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// CHECK-FIXES: (void)LAMBDA3([], (), BODY);
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LAMBDA4;
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LAMBDA5;
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WRAP((void)WRAP(WRAP(LAMBDA3(WRAP([]), WRAP((void)), WRAP(BODY)))));
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// CHECK-MESSAGES: :[[@LINE-1]]:48: warning: redundant void argument list in lambda expression [modernize-redundant-void-arg]
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// CHECK-FIXES: WRAP((void)WRAP(WRAP(LAMBDA3(WRAP([]), WRAP(()), WRAP(BODY)))));
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(void)WRAP([](void) {});
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// CHECK-MESSAGES: :[[@LINE-1]]:17: warning: redundant void argument list in lambda expression [modernize-redundant-void-arg]
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// CHECK-FIXES: (void)WRAP([]() {});
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[](void) BODY;
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// CHECK-MESSAGES: :[[@LINE-1]]:6: warning: redundant void argument list in lambda expression [modernize-redundant-void-arg]
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// CHECK-FIXES: []() BODY;
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}
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namespace qqq {
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void foo() BODY
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void bar(void) BODY;
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// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: redundant void argument list in function definition
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// CHECK-FIXES: void bar() BODY;
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}
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struct S_1 {
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void g_1(void) const {
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// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: redundant void argument list in function definition [modernize-redundant-void-arg]
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// CHECK-FIXES: void g_1() const {
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int a;
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(void)a;
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}
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void g_2() const {
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int a;
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(void)a;
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}
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};
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template <typename T0>
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struct S_2 {
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void g_1(void) const {
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// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: redundant void argument list in function definition [modernize-redundant-void-arg]
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// CHECK-FIXES: void g_1() const {
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int a;
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(void)a;
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}
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void g_2() const {
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int a;
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(void)a;
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}
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};
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template <typename T0>
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struct S_3 {
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template <typename T1>
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void g_1(void) const {
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// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: redundant void argument list in function definition [modernize-redundant-void-arg]
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// CHECK-FIXES: void g_1() const {
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int a;
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(void)a;
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}
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template <typename T2>
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void g_2() const {
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int a;
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(void)a;
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}
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};
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template <typename T1>
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void g_3(void) {
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// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: redundant void argument list in function definition [modernize-redundant-void-arg]
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// CHECK-FIXES: void g_3() {
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int a;
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(void)a;
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}
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//Template instantiation
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void f_testTemplate() {
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S_1();
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S_2<int>();
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S_3<int>();
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g_3<int>();
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}
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