readability-implicit-bool-conversion-cxx98.cpp
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// RUN: %check_clang_tidy -std=c++98 %s readability-implicit-bool-conversion %t
// We need NULL macro, but some buildbots don't like including <cstddef> header
// This is a portable way of getting it to work
#undef NULL
#define NULL 0L
template<typename T>
void functionTaking(T);
struct Struct {
int member;
};
void useOldNullMacroInReplacements() {
int* pointer = NULL;
functionTaking<bool>(pointer);
// CHECK-MESSAGES: :[[@LINE-1]]:24: warning: implicit conversion 'int *' -> bool [readability-implicit-bool-conversion]
// CHECK-FIXES: functionTaking<bool>(pointer != 0);
int Struct::* memberPointer = NULL;
functionTaking<bool>(!memberPointer);
// CHECK-MESSAGES: :[[@LINE-1]]:25: warning: implicit conversion 'int Struct::*' -> bool
// CHECK-FIXES: functionTaking<bool>(memberPointer == 0);
}
void fixFalseLiteralConvertingToNullPointer() {
functionTaking<int*>(false);
// CHECK-MESSAGES: :[[@LINE-1]]:24: warning: implicit conversion bool -> 'int *'
// CHECK-FIXES: functionTaking<int*>(0);
int* pointer = NULL;
if (pointer == false) {}
// CHECK-MESSAGES: :[[@LINE-1]]:18: warning: implicit conversion bool -> 'int *'
// CHECK-FIXES: if (pointer == 0) {}
functionTaking<int Struct::*>(false);
// CHECK-MESSAGES: :[[@LINE-1]]:33: warning: implicit conversion bool -> 'int Struct::*'
// CHECK-FIXES: functionTaking<int Struct::*>(0);
int Struct::* memberPointer = NULL;
if (memberPointer != false) {}
// CHECK-MESSAGES: :[[@LINE-1]]:24: warning: implicit conversion bool -> 'int Struct::*'
// CHECK-FIXES: if (memberPointer != 0) {}
}