xref: /aosp_15_r20/external/clang/test/Sema/warn-main.c (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // RUN: %clang_cc1 -fsyntax-only -verify %s
2*67e74705SXin Li // RUN: not %clang_cc1 -fsyntax-only -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
3*67e74705SXin Li // RUN: not %clang_cc1 -fsyntax-only -fdiagnostics-parseable-fixits -x c++ %s 2>&1 | FileCheck %s
4*67e74705SXin Li 
5*67e74705SXin Li // expected-note@+1 2{{previous definition is here}}
main()6*67e74705SXin Li int main() {
7*67e74705SXin Li   return 0;
8*67e74705SXin Li }
9*67e74705SXin Li 
10*67e74705SXin Li // expected-error@+2 {{static declaration of 'main' follows non-static declaration}}
11*67e74705SXin Li // expected-warning@+1 {{'main' should not be declared static}}
main()12*67e74705SXin Li static int main() {
13*67e74705SXin Li // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:1-[[@LINE-1]]:8}:""
14*67e74705SXin Li   return 0;
15*67e74705SXin Li }
16*67e74705SXin Li 
17*67e74705SXin Li // expected-error@+2 {{redefinition of 'main'}}
18*67e74705SXin Li // expected-error@+1 {{'main' is not allowed to be declared inline}}
main()19*67e74705SXin Li inline int main() {
20*67e74705SXin Li // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:1-[[@LINE-1]]:8}:""
21*67e74705SXin Li   return 0;
22*67e74705SXin Li }
23*67e74705SXin Li 
24*67e74705SXin Li // expected-warning@+5 {{function 'main' declared 'noreturn' should not return}}
25*67e74705SXin Li // expected-warning@+2 {{'main' is not allowed to be declared _Noreturn}}
26*67e74705SXin Li // expected-note@+1 {{remove '_Noreturn'}}
main()27*67e74705SXin Li _Noreturn int main() {
28*67e74705SXin Li // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:1-[[@LINE-1]]:11}:""
29*67e74705SXin Li   return 0;
30*67e74705SXin Li }
31*67e74705SXin Li 
32*67e74705SXin Li // expected-warning@+1 {{'main' is not allowed to be declared variadic}}
main(int argc,char ** argv,...)33*67e74705SXin Li int main(int argc, char**argv, ...) { return 0; }
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