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-rw-r--r--clang/test/SemaCXX/compare.cpp225
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diff --git a/clang/test/SemaCXX/compare.cpp b/clang/test/SemaCXX/compare.cpp
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+// Force x86-64 because some of our heuristics are actually based
+// on integer sizes.
+
+// RUN: %clang_cc1 -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) +
+ ((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) + // 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) +
+ ((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) +
+ (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) +
+ ((signed char) a < (unsigned char) B) +
+
+ // (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) +
+ ((signed char) a < (unsigned char) C) +
+
+ // (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) +
+ ((signed char) a < (unsigned char) 0x80000) +
+
+ 10
+ ;
+}
+
+int test1(int i) {
+ enum en { zero };
+ return i > zero;
+}
+
+enum E { e };
+void test2(int i, void *vp) {
+ if (test1 == vp) { } // expected-warning{{equality comparison between function pointer and void pointer}}
+ if (test1 == e) { } // expected-error{{comparison between pointer and integer}}
+ if (vp < 0) { }
+ if (test1 < e) { } // expected-error{{comparison between pointer and integer}}
+}
+
+// PR7536
+static const unsigned int kMax = 0;
+int pr7536() {
+ return (kMax > 0);
+}
+
+// -Wsign-compare should not warn when ?: operands have different signedness.
+// This will be caught by -Wsign-conversion
+void test3() {
+ unsigned long a;
+ signed long b;
+ (void) (true ? a : b);
+ (void) (true ? (unsigned int)a : (signed int)b);
+ (void) (true ? b : a);
+ (void) (true ? (unsigned char)b : (signed char)a);
+}