forked from OSchip/llvm-project
78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
// RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -fsyntax-only -verify -Wsign-compare %s
|
|
// RUN: %clang_cc1 -triple=x86_64-pc-win32 -fsyntax-only -verify -Wsign-compare %s
|
|
// RUN: %clang_cc1 -x c++ -triple=x86_64-pc-linux-gnu -fsyntax-only -verify -Wsign-compare %s
|
|
// RUN: %clang_cc1 -x c++ -triple=x86_64-pc-win32 -fsyntax-only -verify -Wsign-compare %s
|
|
|
|
// Check that -Wsign-compare is off by default.
|
|
// RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -fsyntax-only -verify -DSILENCE %s
|
|
|
|
#ifdef SILENCE
|
|
// expected-no-diagnostics
|
|
#endif
|
|
|
|
enum PosEnum {
|
|
A_a = 0,
|
|
A_b = 1,
|
|
A_c = 10
|
|
};
|
|
|
|
static const int message[] = {0, 1};
|
|
|
|
int test_pos(enum PosEnum a) {
|
|
if (a < 2)
|
|
return 0;
|
|
|
|
// No warning, except in Windows C mode, where PosEnum is 'int' and it can
|
|
// take on any value according to the C standard.
|
|
#if !defined(SILENCE) && defined(_WIN32) && !defined(__cplusplus)
|
|
// expected-warning@+2 {{comparison of integers of different signs}}
|
|
#endif
|
|
if (a < 2U)
|
|
return 0;
|
|
|
|
unsigned uv = 2;
|
|
#if !defined(SILENCE) && defined(_WIN32) && !defined(__cplusplus)
|
|
// expected-warning@+2 {{comparison of integers of different signs}}
|
|
#endif
|
|
if (a < uv)
|
|
return 1;
|
|
|
|
#if !defined(SILENCE) && defined(_WIN32) && !defined(__cplusplus)
|
|
// expected-warning@+2 {{comparison of integers of different signs}}
|
|
#endif
|
|
if (a < sizeof(message)/sizeof(message[0]))
|
|
return 0;
|
|
return 4;
|
|
}
|
|
|
|
enum NegEnum {
|
|
NE_a = -1,
|
|
NE_b = 0,
|
|
NE_c = 10
|
|
};
|
|
|
|
int test_neg(enum NegEnum a) {
|
|
if (a < 2)
|
|
return 0;
|
|
|
|
#ifndef SILENCE
|
|
// expected-warning@+2 {{comparison of integers of different signs}}
|
|
#endif
|
|
if (a < 2U)
|
|
return 0;
|
|
|
|
unsigned uv = 2;
|
|
#ifndef SILENCE
|
|
// expected-warning@+2 {{comparison of integers of different signs}}
|
|
#endif
|
|
if (a < uv)
|
|
return 1;
|
|
|
|
#ifndef SILENCE
|
|
// expected-warning@+2 {{comparison of integers of different signs}}
|
|
#endif
|
|
if (a < sizeof(message)/sizeof(message[0]))
|
|
return 0;
|
|
return 4;
|
|
}
|