// RUN: %check_clang_tidy -std=c++23 %s modernize-use-std-print %t -- \ // RUN: -config="{CheckOptions: \ // RUN: { \ // RUN: modernize-use-std-print.PrintfLikeFunctions: 'unqualified_printf;::myprintf; mynamespace::myprintf2; bad_format_type_printf', \ // RUN: modernize-use-std-print.FprintfLikeFunctions: '::myfprintf; mynamespace::myfprintf2; bad_format_type_fprintf' \ // RUN: } \ // RUN: }" \ // RUN: -- -isystem %clang_tidy_headers #include #include int myprintf(const char *, ...); int myfprintf(FILE *fp, const char *, ...); namespace mynamespace { int myprintf2(const char *, ...); int myfprintf2(FILE *fp, const char *, ...); } void printf_simple() { myprintf("Hello %s %d", "world", 42); // CHECK-MESSAGES: [[@LINE-1]]:3: warning: use 'std::print' instead of 'myprintf' [modernize-use-std-print] // CHECK-FIXES: std::print("Hello {} {}", "world", 42); } void printf_newline() { myprintf("Hello %s %d\n", "world", 42); // CHECK-MESSAGES: [[@LINE-1]]:3: warning: use 'std::println' instead of 'myprintf' [modernize-use-std-print] // CHECK-FIXES: std::println("Hello {} {}", "world", 42); mynamespace::myprintf2("Hello %s %d\n", "world", 42); // CHECK-MESSAGES: [[@LINE-1]]:3: warning: use 'std::println' instead of 'myprintf2' [modernize-use-std-print] // CHECK-FIXES: std::println("Hello {} {}", "world", 42); using mynamespace::myprintf2; myprintf2("Hello %s %d\n", "world", 42); // CHECK-MESSAGES: [[@LINE-1]]:3: warning: use 'std::println' instead of 'myprintf2' [modernize-use-std-print] // CHECK-FIXES: std::println("Hello {} {}", "world", 42); // When using custom options leave printf alone printf("Hello %s %d\n", "world", 42); } int printf_uses_return_value(int i) { return myprintf("return value %d\n", i); // CHECK-MESSAGES-NOT: [[@LINE-1]]:10: warning: use 'std::println' instead of 'myprintf' [modernize-use-std-print] // CHECK-FIXES-NOT: std::println("return value {}", i); } void fprintf_simple(FILE *fp) { myfprintf(stderr, "Hello %s %d", "world", 42); // CHECK-MESSAGES: [[@LINE-1]]:3: warning: use 'std::print' instead of 'myfprintf' [modernize-use-std-print] // CHECK-FIXES: std::print(stderr, "Hello {} {}", "world", 42); } void fprintf_newline(FILE *fp) { myfprintf(stderr, "Hello %s %d\n", "world", 42); // CHECK-MESSAGES: [[@LINE-1]]:3: warning: use 'std::println' instead of 'myfprintf' [modernize-use-std-print] // CHECK-FIXES: std::println(stderr, "Hello {} {}", "world", 42); mynamespace::myfprintf2(stderr, "Hello %s %d\n", "world", 42); // CHECK-MESSAGES: [[@LINE-1]]:3: warning: use 'std::println' instead of 'myfprintf2' [modernize-use-std-print] // CHECK-FIXES: std::println(stderr, "Hello {} {}", "world", 42); using mynamespace::myfprintf2; myfprintf2(stderr, "Hello %s %d\n", "world", 42); // CHECK-MESSAGES: [[@LINE-1]]:3: warning: use 'std::println' instead of 'myfprintf2' [modernize-use-std-print] // CHECK-FIXES: std::println(stderr, "Hello {} {}", "world", 42); // When using custom options leave fprintf alone fprintf(stderr, "Hello %s %d\n", "world", 42); } int fprintf_uses_return_value(int i) { return myfprintf(stderr, "return value %d\n", i); // CHECK-MESSAGES-NOT: [[@LINE-1]]:10: warning: use 'std::println' instead of 'myprintf' [modernize-use-std-print] // CHECK-FIXES-NOT: std::println(stderr, "return value {}", i); } // Ensure that MatchesAnyListedNameMatcher::NameMatcher::match() can cope with a // NamedDecl that has no name when we're trying to match unqualified_printf. void no_name(const std::string &in) { "A" + in; } int myprintf(const wchar_t *, ...); void wide_string_not_supported() { myprintf(L"wide string %s", L"string"); } // Issue #92896: Ensure that the check doesn't assert if the argument is // promoted to something that isn't a string. struct S { S(...) {} }; int bad_format_type_printf(const S &, ...); int bad_format_type_fprintf(FILE *, const S &, ...); void unsupported_format_parameter_type() { // No fixes here because the format parameter of the function called is not a // string. bad_format_type_printf("Hello %s", "world"); bad_format_type_fprintf(stderr, "Hello %s", "world"); }