derek.holloway
7502bf64a4
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70 lines
3.1 KiB
C
70 lines
3.1 KiB
C
// RUN: %clang_cc1 -x c -fsyntax-only -verify -Wbool-operation %s
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// RUN: %clang_cc1 -x c -fsyntax-only -verify -Wall %s
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// RUN: %clang_cc1 -x c -fsyntax-only -Wbitwise-instead-of-logical -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
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// RUN: %clang_cc1 -x c -fsyntax-only -Wbool-operation -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
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// RUN: %clang_cc1 -x c++ -fsyntax-only -verify -Wbool-operation %s
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// RUN: %clang_cc1 -x c++ -fsyntax-only -verify -Wall %s
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// RUN: %clang_cc1 -x c++ -fsyntax-only -Wbitwise-instead-of-logical -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
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// RUN: %clang_cc1 -x c++ -fsyntax-only -Wbool-operation -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
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#ifdef __cplusplus
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typedef bool boolean;
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#else
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typedef _Bool boolean;
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#endif
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boolean foo(void);
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boolean bar(void);
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boolean baz(void) __attribute__((const));
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void sink(boolean);
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#define FOO foo()
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#define MY_AND &
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#define My_BITAND bitand
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void test(boolean a, boolean b, int *p, volatile int *q, int i) {
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b = a & b;
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b = foo() & a;
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b = (p != 0) & (*p == 42); // FIXME: also warn for a non-volatile pointer dereference
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b = foo() & (*q == 42); // expected-warning {{use of bitwise '&' with boolean operands}}
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// expected-note@-1 {{cast one or both operands to int to silence this warning}}
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b = foo() & (int)(*q == 42); // OK, no warning expected
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b = a & foo();
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b = (int)a & foo(); // OK, no warning expected
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b = foo() & bar(); // expected-warning {{use of bitwise '&' with boolean operands}}
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// expected-note@-1 {{cast one or both operands to int to silence this warning}}
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// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:13-[[@LINE-2]]:14}:"&&"
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b = foo() & (int)bar(); // OK, no warning expected
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b = foo() & !bar(); // expected-warning {{use of bitwise '&' with boolean operands}}
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// expected-note@-1 {{cast one or both operands to int to silence this warning}}
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// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:13-[[@LINE-2]]:14}:"&&"
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b = a & baz();
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b = bar() & FOO; // expected-warning {{use of bitwise '&' with boolean operands}}
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// expected-note@-1 {{cast one or both operands to int to silence this warning}}
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// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:13-[[@LINE-2]]:14}:"&&"
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b = foo() & (int)FOO; // OK, no warning expected
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b = b & foo();
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b = bar() & (i > 4);
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b = (i == 7) & foo();
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b = b MY_AND foo(); // OK, no warning expected
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#ifdef __cplusplus
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b = foo() bitand bar(); // Ok, no warning expected
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b = foo() My_BITAND bar(); // Ok, no warning expected
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#endif
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if (foo() & bar()) // expected-warning {{use of bitwise '&' with boolean operands}}
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// expected-note@-1 {{cast one or both operands to int to silence this warning}}
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;
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sink(a & b);
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sink(a & foo());
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sink(foo() & bar()); // expected-warning {{use of bitwise '&' with boolean operands}}
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// expected-note@-1 {{cast one or both operands to int to silence this warning}}
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int n = i + 10;
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b = (n & (n - 1));
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}
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