95 lines
2.6 KiB
C++
95 lines
2.6 KiB
C++
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// RUN: %check_clang_tidy -std=c++20 %s modernize-use-nullptr %t -- -- -DGCC
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// RUN: %check_clang_tidy -std=c++20 %s modernize-use-nullptr %t -- -- -DCLANG
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namespace std {
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class strong_ordering;
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// Mock how STD defined unspecified parameters for the operators below.
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#ifdef CLANG
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struct _CmpUnspecifiedParam {
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consteval
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_CmpUnspecifiedParam(int _CmpUnspecifiedParam::*) noexcept {}
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};
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#define UNSPECIFIED_TYPE _CmpUnspecifiedParam
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#endif
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#ifdef GCC
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namespace __cmp_cat {
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struct __unspec {
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constexpr __unspec(__unspec*) noexcept { }
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};
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}
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#define UNSPECIFIED_TYPE __cmp_cat::__unspec
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#endif
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struct strong_ordering {
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signed char value;
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friend constexpr bool operator==(strong_ordering v,
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UNSPECIFIED_TYPE) noexcept {
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return v.value == 0;
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}
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friend constexpr bool operator<(strong_ordering v,
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UNSPECIFIED_TYPE) noexcept {
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return v.value < 0;
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}
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friend constexpr bool operator>(strong_ordering v,
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UNSPECIFIED_TYPE) noexcept {
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return v.value > 0;
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}
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friend constexpr bool operator>=(strong_ordering v,
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UNSPECIFIED_TYPE) noexcept {
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return v.value >= 0;
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}
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static const strong_ordering equal, greater, less;
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};
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constexpr strong_ordering strong_ordering::equal = {0};
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constexpr strong_ordering strong_ordering::greater = {1};
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constexpr strong_ordering strong_ordering::less = {-1};
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} // namespace std
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class A {
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int a;
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public:
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auto operator<=>(const A &other) const = default;
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// CHECK-FIXES: auto operator<=>(const A &other) const = default;
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};
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void test_cxx_rewritten_binary_ops() {
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A a1, a2;
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bool result;
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// should not change next line to (a1 nullptr a2)
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result = (a1 < a2);
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// CHECK-FIXES: result = (a1 < a2);
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// should not change next line to (a1 nullptr a2)
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result = (a1 >= a2);
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// CHECK-FIXES: result = (a1 >= a2);
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int *ptr = 0;
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// CHECK-FIXES: int *ptr = nullptr;
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result = (a1 > (ptr == 0 ? a1 : a2));
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// CHECK-FIXES: result = (a1 > (ptr == nullptr ? a1 : a2));
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result = (a1 > ((a1 > (ptr == 0 ? a1 : a2)) ? a1 : a2));
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// CHECK-FIXES: result = (a1 > ((a1 > (ptr == nullptr ? a1 : a2)) ? a1 : a2));
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}
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void testValidZero() {
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A a1, a2;
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auto result = a1 <=> a2;
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if (result < 0) {}
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// CHECK-FIXES: if (result < 0) {}
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}
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template<class T1, class T2>
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struct P {
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T1 x1;
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T2 x2;
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friend auto operator<=>(const P&, const P&) = default;
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// CHECK-FIXES: friend auto operator<=>(const P&, const P&) = default;
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};
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bool foo(P<int,int> x, P<int, int> y) { return x < y; }
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// CHECK-FIXES: bool foo(P<int,int> x, P<int, int> y) { return x < y; }
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