1 // RUN: %check_clang_tidy %s readability-string-compare %t -- -config='{CheckOptions: {readability-string-compare.StringLikeClasses: "CustomStringTemplateBase;CustomStringNonTemplateBase"}}' -- -isystem %clang_tidy_headers
2 #include <string>
3 
4 struct CustomStringNonTemplateBase {
compareCustomStringNonTemplateBase5   int compare(const CustomStringNonTemplateBase& Other) const {
6     return 123;  // value is not important for check
7   }
8 };
9 
10 template <typename T>
11 struct CustomStringTemplateBase {
compareCustomStringTemplateBase12   int compare(const CustomStringTemplateBase& Other) const {
13     return 123;
14   }
15 };
16 
17 struct CustomString1 : CustomStringNonTemplateBase {};
18 struct CustomString2 : CustomStringTemplateBase<char> {};
19 
CustomStringClasses()20 void CustomStringClasses() {
21   std::string_view sv1("a");
22   std::string_view sv2("b");
23   if (sv1.compare(sv2)) {  // No warning - if a std class is not listed in StringLikeClasses, it won't be checked.
24   }
25 
26   CustomString1 custom1;
27   if (custom1.compare(custom1)) {
28   }
29   // CHECK-MESSAGES: [[@LINE-2]]:7: warning: do not use 'compare' to test equality of strings; use the string equality operator instead [readability-string-compare]
30 
31   CustomString2 custom2;
32   if (custom2.compare(custom2)) {
33   }
34   // CHECK-MESSAGES: [[@LINE-2]]:7: warning: do not use 'compare' to test equality of strings; use the string equality operator instead [readability-string-compare]
35 }
36