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// RUN: %check_clang_tidy %s boost-use-to-string %t
namespace std {
template <typename T>
class basic_string {};
using string = basic_string<char>;
using wstring = basic_string<wchar_t>;
}
namespace boost {
template <typename T, typename V>
T lexical_cast(const V &) {
return T();
};
}
struct my_weird_type {};
std::string fun(const std::string &) {}
void test_to_string1() {
auto xa = boost::lexical_cast<std::string>(5);
// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: use std::to_string instead of boost::lexical_cast<std::string> [boost-use-to-string]
// CHECK-FIXES: auto xa = std::to_string(5);
auto z = boost::lexical_cast<std::string>(42LL);
// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: use std::to_string {{..}}
// CHECK-FIXES: auto z = std::to_string(42LL);
// this should not trigger
fun(boost::lexical_cast<std::string>(42.0));
auto non = boost::lexical_cast<my_weird_type>(42);
boost::lexical_cast<int>("12");
}
void test_to_string2() {
int a;
long b;
long long c;
unsigned d;
unsigned long e;
unsigned long long f;
float g;
double h;
long double i;
bool j;
fun(boost::lexical_cast<std::string>(a));
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: use std::to_string {{..}}
// CHECK-FIXES: fun(std::to_string(a));
fun(boost::lexical_cast<std::string>(b));
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: use std::to_string {{..}}
// CHECK-FIXES: fun(std::to_string(b));
fun(boost::lexical_cast<std::string>(c));
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: use std::to_string {{..}}
// CHECK-FIXES: fun(std::to_string(c));
fun(boost::lexical_cast<std::string>(d));
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: use std::to_string {{..}}
// CHECK-FIXES: fun(std::to_string(d));
fun(boost::lexical_cast<std::string>(e));
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: use std::to_string {{..}}
// CHECK-FIXES: fun(std::to_string(e));
fun(boost::lexical_cast<std::string>(f));
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: use std::to_string {{..}}
// CHECK-FIXES: fun(std::to_string(f));
// No change for floating numbers.
fun(boost::lexical_cast<std::string>(g));
fun(boost::lexical_cast<std::string>(h));
fun(boost::lexical_cast<std::string>(i));
// And bool.
fun(boost::lexical_cast<std::string>(j));
}
std::string fun(const std::wstring &) {}
void test_to_wstring() {
int a;
long b;
long long c;
unsigned d;
unsigned long e;
unsigned long long f;
float g;
double h;
long double i;
bool j;
fun(boost::lexical_cast<std::wstring>(a));
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: use std::to_wstring instead of boost::lexical_cast<std::wstring> [boost-use-to-string]
// CHECK-FIXES: fun(std::to_wstring(a));
fun(boost::lexical_cast<std::wstring>(b));
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: use std::to_wstring {{..}}
// CHECK-FIXES: fun(std::to_wstring(b));
fun(boost::lexical_cast<std::wstring>(c));
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: use std::to_wstring {{..}}
// CHECK-FIXES: fun(std::to_wstring(c));
fun(boost::lexical_cast<std::wstring>(d));
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: use std::to_wstring {{..}}
// CHECK-FIXES: fun(std::to_wstring(d));
fun(boost::lexical_cast<std::wstring>(e));
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: use std::to_wstring {{..}}
// CHECK-FIXES: fun(std::to_wstring(e));
fun(boost::lexical_cast<std::wstring>(f));
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: use std::to_wstring {{..}}
// CHECK-FIXES: fun(std::to_wstring(f));
// No change for floating numbers
fun(boost::lexical_cast<std::wstring>(g));
fun(boost::lexical_cast<std::wstring>(h));
fun(boost::lexical_cast<std::wstring>(i));
// and bool.
fun(boost::lexical_cast<std::wstring>(j));
}
const auto glob = boost::lexical_cast<std::string>(42);
// CHECK-MESSAGES: :[[@LINE-1]]:19: warning: use std::to_string{{..}}
// CHECK-FIXES: const auto glob = std::to_string(42);
template <typename T>
void string_as_T(T t = T()) {
boost::lexical_cast<std::string>(42);
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: use std::to_string{{..}}
// CHECK-FIXES: std::to_string(42);
boost::lexical_cast<T>(42);
string_as_T(boost::lexical_cast<T>(42));
auto p = boost::lexical_cast<T>(42);
auto p2 = (T)boost::lexical_cast<T>(42);
auto p3 = static_cast<T>(boost::lexical_cast<T>(42));
}
#define my_to_string boost::lexical_cast<std::string>
void no_fixup_inside_macro() {
my_to_string(12);
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: use std::to_string{{..}}
}
void no_warnings() {
fun(boost::lexical_cast<std::string>("abc"));
fun(boost::lexical_cast<std::wstring>("abc"));
fun(boost::lexical_cast<std::string>(my_weird_type{}));
string_as_T<int>();
string_as_T<std::string>();
}
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