llvm-project/clang/test/SemaCXX/warn-sign-compare.cpp

73 lines
2.5 KiB
C++

// RUN: %clang_cc1 -verify -fsyntax-only -Wsign-compare %s
// NOTE: When a 'enumeral mismatch' warning is implemented then expect several
// of the following cases to be impacted.
// namespace for anonymous enums tests
namespace test1 {
enum { A };
enum { B = -1 };
template <typename T> struct Foo {
enum { C };
enum { D = ~0U };
};
enum { E = ~0U };
void doit_anonymous( int i ) {
int a1 = 1 ? i : A;
int a2 = 1 ? A : i;
int b1 = 1 ? i : B;
int b2 = 1 ? B : i;
int c1 = 1 ? i : Foo<bool>::C;
int c2 = 1 ? Foo<bool>::C : i;
int d1 = 1 ? i : Foo<bool>::D; // expected-warning {{operands of ? are integers of different signs}}
int d2 = 1 ? Foo<bool>::D : i; // expected-warning {{operands of ? are integers of different signs}}
int d3 = 1 ? B : Foo<bool>::D; // expected-warning {{operands of ? are integers of different signs}}
int d4 = 1 ? Foo<bool>::D : B; // expected-warning {{operands of ? are integers of different signs}}
int e1 = 1 ? i : E; // expected-warning {{operands of ? are integers of different signs}}
int e2 = 1 ? E : i; // expected-warning {{operands of ? are integers of different signs}}
int e3 = 1 ? E : B; // expected-warning {{operands of ? are integers of different signs}}
int e4 = 1 ? B : E; // expected-warning {{operands of ? are integers of different signs}}
}
}
// namespace for named enums tests
namespace test2 {
enum Named1 { A };
enum Named2 { B = -1 };
template <typename T> struct Foo {
enum Named3 { C };
enum Named4 { D = ~0U };
};
enum Named5 { E = ~0U };
void doit_anonymous( int i ) {
int a1 = 1 ? i : A;
int a2 = 1 ? A : i;
int b1 = 1 ? i : B;
int b2 = 1 ? B : i;
int c1 = 1 ? i : Foo<bool>::C;
int c2 = 1 ? Foo<bool>::C : i;
int d1 = 1 ? i : Foo<bool>::D; // expected-warning {{operands of ? are integers of different signs}}
int d2 = 1 ? Foo<bool>::D : i; // expected-warning {{operands of ? are integers of different signs}}
int d3 = 1 ? B : Foo<bool>::D; // expected-warning {{operands of ? are integers of different signs}}
int d4 = 1 ? Foo<bool>::D : B; // expected-warning {{operands of ? are integers of different signs}}
int e1 = 1 ? i : E; // expected-warning {{operands of ? are integers of different signs}}
int e2 = 1 ? E : i; // expected-warning {{operands of ? are integers of different signs}}
int e3 = 1 ? E : B; // expected-warning {{operands of ? are integers of different signs}}
int e4 = 1 ? B : E; // expected-warning {{operands of ? are integers of different signs}}
}
}