1 // RUN: %clang_cc1 -fsyntax-only -Wdocumentation -Wmissing-prototypes -Wno-deprecated-non-prototype -verify %s 2 // RUN: %clang_cc1 -fsyntax-only -Wdocumentation -Wmissing-prototypes -Wno-deprecated-non-prototype -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s 3 4 int f(); // expected-note{{this declaration is not a prototype; add parameter declarations to make it one}} 5 // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:{{.*}}-[[@LINE-1]]:{{.*}}}:"{{.*}}" 6 7 int f(int x) { return x; } // expected-warning{{no previous prototype for function 'f'}} 8 9 static int g(int x) { return x; } 10 11 int h(int x) { return x; } // expected-warning{{no previous prototype for function 'h'}} 12 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}} 13 // CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:1-[[@LINE-2]]:1}:"static " 14 15 static int g2(); 16 17 int g2(int x) { return x; } 18 19 extern int g3(int x) { return x; } // expected-warning{{no previous prototype for function 'g3'}} 20 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}} 21 // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-2]]:{{.*}}-[[@LINE-2]]:{{.*}}}:"{{.*}}" 22 23 void test(void); 24 25 int h3(); // expected-note{{this declaration is not a prototype; add parameter declarations to make it one}} 26 // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:{{.*}}-[[@LINE-1]]:{{.*}}}:"{{.*}}" 27 int h4(int); 28 int h4(); 29 30 void test(void) { 31 int h2(int x); 32 int h3(int x); 33 int h4(); 34 } 35 36 int h2(int x) { return x; } // expected-warning{{no previous prototype for function 'h2'}} 37 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}} 38 int h3(int x) { return x; } // expected-warning{{no previous prototype for function 'h3'}} 39 int h4(int x) { return x; } 40 41 int f2(int); 42 int f2(); 43 44 int f2(int x) { return x; } 45 46 // rdar://6759522 47 int main(void) { return 0; } 48 49 void not_a_prototype_test(); // expected-note{{this declaration is not a prototype; add 'void' to make it a prototype for a zero-parameter function}} 50 // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:27-[[@LINE-1]]:27}:"void" 51 void not_a_prototype_test() { } // expected-warning{{no previous prototype for function 'not_a_prototype_test'}} 52 53 const int *get_const() { // expected-warning{{no previous prototype for function 'get_const'}} 54 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}} 55 // CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:1-[[@LINE-2]]:1}:"static " 56 return (void *)0; 57 } 58 59 struct MyStruct {}; 60 61 const struct MyStruct get_struct() { // expected-warning{{no previous prototype for function 'get_struct'}} 62 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}} 63 // CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:1-[[@LINE-2]]:1}:"static " 64 struct MyStruct ret; 65 return ret; 66 } 67 68 // Turn off clang-format for white-space dependent testing. 69 // clang-format off 70 // Two spaces between cost and struct 71 const struct MyStruct get_struct_2() { // expected-warning{{no previous prototype for function 'get_struct_2'}} 72 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}} 73 // CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:1-[[@LINE-2]]:1}:"static " 74 struct MyStruct ret; 75 return ret; 76 } 77 78 // Two spaces bewteen const and struct 79 const struct MyStruct* get_struct_ptr() { // expected-warning{{no previous prototype for function 'get_struct_ptr'}} 80 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}} 81 // CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:1-[[@LINE-2]]:1}:"static " 82 return (void*)0; 83 } 84 85 // Random comment before const. 86 /*some randome comment*/const struct MyStruct* get_struct_3() { // expected-warning{{no previous prototype for function 'get_struct_3'}} 87 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}} 88 // CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:25-[[@LINE-2]]:25}:"static " 89 return (void*)0; 90 } 91 92 // Random comment after const. 93 const/*some randome comment*/ struct MyStruct* get_struct_4() { // expected-warning{{no previous prototype for function 'get_struct_4'}} 94 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}} 95 // CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:1-[[@LINE-2]]:1}:"static " 96 return (void*)0; 97 } 98 // clang-format on 99 100 #define MY_CONST const 101 102 // Since we can't easily understand what MY_CONST means while preparing the 103 // diagnostic, the fix-it suggests to add 'static' in a non-idiomatic place. 104 MY_CONST struct MyStruct *get_struct_nyi() { // expected-warning{{no previous prototype for function 'get_struct_nyi'}} 105 // expected-note@-1{{declare 'static' if the function is not intended to be used outside of this translation unit}} 106 // CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:10-[[@LINE-2]]:10}:"static " 107 return (void *)0; 108 } 109