54 lines
2.6 KiB
C++
54 lines
2.6 KiB
C++
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// RUN: %clang_cc1 -triple i686-pc-linux-gnu -fsyntax-only -verify %s -Wabsolute-value
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// RUN: %clang_cc1 -triple i686-pc-linux-gnu -fsyntax-only %s -Wabsolute-value -fdiagnostics-parseable-fixits 2>&1 | FileCheck %s
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extern "C" {
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int abs(int);
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float fabsf(float);
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}
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namespace std {
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int abs(int);
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float abs(float);
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}
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void test(long long ll, double d, int i, float f) {
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// Suggest including cmath
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(void)abs(d);
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// expected-warning@-1{{using integer absolute value function 'abs' when argument is of floating point type}}
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// expected-note@-2{{use function 'std::abs' instead}}
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// expected-note@-3{{include the header <cmath> or explicitly provide a declaration for 'std::abs'}}
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// CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:9-[[@LINE-4]]:12}:"std::abs"
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(void)fabsf(d);
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// expected-warning@-1{{absolute value function 'fabsf' given an argument of type 'double' but has parameter of type 'float' which may cause truncation of value}}
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// expected-note@-2{{use function 'std::abs' instead}}
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// expected-note@-3{{include the header <cmath> or explicitly provide a declaration for 'std::abs'}}
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// CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:9-[[@LINE-4]]:14}:"std::abs"
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// Suggest including cstdlib
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(void)abs(ll);
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// expected-warning@-1{{absolute value function 'abs' given an argument of type 'long long' but has parameter of type 'int' which may cause truncation of value}}
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// expected-note@-2{{use function 'std::abs' instead}}
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// expected-note@-3{{include the header <cstdlib> or explicitly provide a declaration for 'std::abs'}}
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// CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:9-[[@LINE-4]]:12}:"std::abs"
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(void)fabsf(ll);
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// expected-warning@-1{{using floating point absolute value function 'fabsf' when argument is of integer type}}
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// expected-note@-2{{use function 'std::abs' instead}}
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// expected-note@-3{{include the header <cstdlib> or explicitly provide a declaration for 'std::abs'}}
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// CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:9-[[@LINE-4]]:14}:"std::abs"
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// Proper function already called, no warnings.
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(void)abs(i);
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(void)fabsf(f);
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// Declarations found, suggest name change.
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(void)fabsf(i);
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// expected-warning@-1{{using floating point absolute value function 'fabsf' when argument is of integer type}}
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// expected-note@-2{{use function 'std::abs' instead}}
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// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:9-[[@LINE-3]]:14}:"std::abs"
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(void)abs(f);
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// expected-warning@-1{{using integer absolute value function 'abs' when argument is of floating point type}}
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// expected-note@-2{{use function 'std::abs' instead}}
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// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:9-[[@LINE-3]]:12}:"std::abs"
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}
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