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

201 lines
8.9 KiB
C++

// Force x86-64 because some of our heuristics are actually based
// on integer sizes.
// RUN: clang-cc -triple x86_64-apple-darwin -fsyntax-only -pedantic -verify -Wsign-compare %s
int test0(long a, unsigned long b) {
enum EnumA {A};
enum EnumB {B};
enum EnumC {C = 0x10000};
return
// (a,b)
(a == (unsigned long) b) + // expected-warning {{comparison of integers of different signs}}
(a == (unsigned int) b) +
(a == (unsigned short) b) +
(a == (unsigned char) b) +
((long) a == b) + // expected-warning {{comparison of integers of different signs}}
((int) a == b) + // expected-warning {{comparison of integers of different signs}}
((short) a == b) + // expected-warning {{comparison of integers of different signs}}
((signed char) a == b) + // expected-warning {{comparison of integers of different signs}}
((long) a == (unsigned long) b) + // expected-warning {{comparison of integers of different signs}}
((int) a == (unsigned int) b) + // expected-warning {{comparison of integers of different signs}}
((short) a == (unsigned short) b) + // expected-warning {{comparison of integers of different signs}}
((signed char) a == (unsigned char) b) + // expected-warning {{comparison of integers of different signs}}
(a < (unsigned long) b) + // expected-warning {{comparison of integers of different signs}}
(a < (unsigned int) b) +
(a < (unsigned short) b) +
(a < (unsigned char) b) +
((long) a < b) + // expected-warning {{comparison of integers of different signs}}
((int) a < b) + // expected-warning {{comparison of integers of different signs}}
((short) a < b) + // expected-warning {{comparison of integers of different signs}}
((signed char) a < b) + // expected-warning {{comparison of integers of different signs}}
((long) a < (unsigned long) b) + // expected-warning {{comparison of integers of different signs}}
((int) a < (unsigned int) b) + // expected-warning {{comparison of integers of different signs}}
((short) a < (unsigned short) b) + // expected-warning {{comparison of integers of different signs}}
((signed char) a < (unsigned char) b) + // expected-warning {{comparison of integers of different signs}}
// (A,b)
(A == (unsigned long) b) +
(A == (unsigned int) b) +
(A == (unsigned short) b) +
(A == (unsigned char) b) +
((long) A == b) +
((int) A == b) +
((short) A == b) +
((signed char) A == b) +
((long) A == (unsigned long) b) +
((int) A == (unsigned int) b) +
((short) A == (unsigned short) b) +
((signed char) A == (unsigned char) b) +
(A < (unsigned long) b) +
(A < (unsigned int) b) +
(A < (unsigned short) b) +
(A < (unsigned char) b) +
((long) A < b) +
((int) A < b) +
((short) A < b) +
((signed char) A < b) +
((long) A < (unsigned long) b) +
((int) A < (unsigned int) b) +
((short) A < (unsigned short) b) +
((signed char) A < (unsigned char) b) +
// (a,B)
(a == (unsigned long) B) +
(a == (unsigned int) B) +
(a == (unsigned short) B) +
(a == (unsigned char) B) +
((long) a == B) +
((int) a == B) +
((short) a == B) +
((signed char) a == B) +
((long) a == (unsigned long) B) +
((int) a == (unsigned int) B) +
((short) a == (unsigned short) B) +
((signed char) a == (unsigned char) B) +
(a < (unsigned long) B) + // expected-warning {{comparison of integers of different signs}}
(a < (unsigned int) B) +
(a < (unsigned short) B) +
(a < (unsigned char) B) +
((long) a < B) +
((int) a < B) +
((short) a < B) +
((signed char) a < B) +
((long) a < (unsigned long) B) + // expected-warning {{comparison of integers of different signs}}
((int) a < (unsigned int) B) + // expected-warning {{comparison of integers of different signs}}
((short) a < (unsigned short) B) + // expected-warning {{comparison of integers of different signs}}
((signed char) a < (unsigned char) B) + // expected-warning {{comparison of integers of different signs}}
// (C,b)
(C == (unsigned long) b) +
(C == (unsigned int) b) +
(C == (unsigned short) b) +
(C == (unsigned char) b) +
((long) C == b) +
((int) C == b) +
((short) C == b) +
((signed char) C == b) +
((long) C == (unsigned long) b) +
((int) C == (unsigned int) b) +
((short) C == (unsigned short) b) +
((signed char) C == (unsigned char) b) +
(C < (unsigned long) b) +
(C < (unsigned int) b) +
(C < (unsigned short) b) +
(C < (unsigned char) b) +
((long) C < b) +
((int) C < b) +
((short) C < b) +
((signed char) C < b) +
((long) C < (unsigned long) b) +
((int) C < (unsigned int) b) +
((short) C < (unsigned short) b) +
((signed char) C < (unsigned char) b) +
// (a,C)
(a == (unsigned long) C) +
(a == (unsigned int) C) +
(a == (unsigned short) C) +
(a == (unsigned char) C) +
((long) a == C) +
((int) a == C) +
((short) a == C) +
((signed char) a == C) +
((long) a == (unsigned long) C) +
((int) a == (unsigned int) C) +
((short) a == (unsigned short) C) +
((signed char) a == (unsigned char) C) +
(a < (unsigned long) C) + // expected-warning {{comparison of integers of different signs}}
(a < (unsigned int) C) +
(a < (unsigned short) C) +
(a < (unsigned char) C) +
((long) a < C) +
((int) a < C) +
((short) a < C) +
((signed char) a < C) +
((long) a < (unsigned long) C) + // expected-warning {{comparison of integers of different signs}}
((int) a < (unsigned int) C) + // expected-warning {{comparison of integers of different signs}}
((short) a < (unsigned short) C) + // expected-warning {{comparison of integers of different signs}}
((signed char) a < (unsigned char) C) + // expected-warning {{comparison of integers of different signs}}
// (0x80000,b)
(0x80000 == (unsigned long) b) +
(0x80000 == (unsigned int) b) +
(0x80000 == (unsigned short) b) +
(0x80000 == (unsigned char) b) +
((long) 0x80000 == b) +
((int) 0x80000 == b) +
((short) 0x80000 == b) +
((signed char) 0x80000 == b) +
((long) 0x80000 == (unsigned long) b) +
((int) 0x80000 == (unsigned int) b) +
((short) 0x80000 == (unsigned short) b) +
((signed char) 0x80000 == (unsigned char) b) +
(0x80000 < (unsigned long) b) +
(0x80000 < (unsigned int) b) +
(0x80000 < (unsigned short) b) +
(0x80000 < (unsigned char) b) +
((long) 0x80000 < b) +
((int) 0x80000 < b) +
((short) 0x80000 < b) +
((signed char) 0x80000 < b) +
((long) 0x80000 < (unsigned long) b) +
((int) 0x80000 < (unsigned int) b) +
((short) 0x80000 < (unsigned short) b) +
((signed char) 0x80000 < (unsigned char) b) +
// (a,0x80000)
(a == (unsigned long) 0x80000) +
(a == (unsigned int) 0x80000) +
(a == (unsigned short) 0x80000) +
(a == (unsigned char) 0x80000) +
((long) a == 0x80000) +
((int) a == 0x80000) +
((short) a == 0x80000) +
((signed char) a == 0x80000) +
((long) a == (unsigned long) 0x80000) +
((int) a == (unsigned int) 0x80000) +
((short) a == (unsigned short) 0x80000) +
((signed char) a == (unsigned char) 0x80000) +
(a < (unsigned long) 0x80000) + // expected-warning {{comparison of integers of different signs}}
(a < (unsigned int) 0x80000) +
(a < (unsigned short) 0x80000) +
(a < (unsigned char) 0x80000) +
((long) a < 0x80000) +
((int) a < 0x80000) +
((short) a < 0x80000) +
((signed char) a < 0x80000) +
((long) a < (unsigned long) 0x80000) + // expected-warning {{comparison of integers of different signs}}
((int) a < (unsigned int) 0x80000) + // expected-warning {{comparison of integers of different signs}}
((short) a < (unsigned short) 0x80000) + // expected-warning {{comparison of integers of different signs}}
((signed char) a < (unsigned char) 0x80000) + // expected-warning {{comparison of integers of different signs}}
10
;
}
int test1(int i) {
enum en { zero };
return i > zero;
}