forked from OSchip/llvm-project
123 lines
6.2 KiB
C++
123 lines
6.2 KiB
C++
// RUN: %check_clang_tidy -check-suffixes=ALL,C -std=c99 %s bugprone-implicit-widening-of-multiplication-result %t -- -- -target x86_64-unknown-unknown -x c
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// RUN: %check_clang_tidy -check-suffixes=ALL,CXX %s bugprone-implicit-widening-of-multiplication-result %t -- -- -target x86_64-unknown-unknown -x c++
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// RUN: %check_clang_tidy -check-suffixes=ALL,C -std=c99 %s bugprone-implicit-widening-of-multiplication-result %t -- \
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// RUN: -config='{CheckOptions: [ \
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// RUN: {key: bugprone-implicit-widening-of-multiplication-result.UseCXXStaticCastsInCppSources, value: false} \
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// RUN: ]}' -- -target x86_64-unknown-unknown -x c
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// RUN: %check_clang_tidy -check-suffixes=ALL,C %s bugprone-implicit-widening-of-multiplication-result %t -- \
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// RUN: -config='{CheckOptions: [ \
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// RUN: {key: bugprone-implicit-widening-of-multiplication-result.UseCXXStaticCastsInCppSources, value: false} \
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// RUN: ]}' -- -target x86_64-unknown-unknown -x c++
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long t0(int a, int b) {
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return a * b;
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// CHECK-NOTES-ALL: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'long' of a multiplication performed in type 'int'
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// CHECK-NOTES-ALL: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning
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// CHECK-NOTES-C: (long)( )
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// CHECK-NOTES-CXX: static_cast<long>( )
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// CHECK-NOTES-ALL: :[[@LINE-5]]:10: note: perform multiplication in a wider type
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// CHECK-NOTES-C: (long)
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// CHECK-NOTES-CXX: static_cast<long>()
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}
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unsigned long t1(int a, int b) {
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return a * b;
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// CHECK-NOTES-ALL: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'unsigned long' of a multiplication performed in type 'int'
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// CHECK-NOTES-ALL: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning
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// CHECK-NOTES-C: (unsigned long)( )
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// CHECK-NOTES-CXX: static_cast<unsigned long>( )
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// CHECK-NOTES-ALL: :[[@LINE-5]]:10: note: perform multiplication in a wider type
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// CHECK-NOTES-C: (long)
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// CHECK-NOTES-CXX: static_cast<long>()
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}
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long t2(unsigned int a, int b) {
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return a * b;
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// CHECK-NOTES-ALL: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'long' of a multiplication performed in type 'unsigned int'
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// CHECK-NOTES-ALL: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning
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// CHECK-NOTES-C: (long)( )
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// CHECK-NOTES-CXX: static_cast<long>( )
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// CHECK-NOTES-ALL: :[[@LINE-5]]:10: note: perform multiplication in a wider type
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// CHECK-NOTES-C: (unsigned long)
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// CHECK-NOTES-CXX: static_cast<unsigned long>()
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}
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unsigned long t3(unsigned int a, int b) {
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return a * b;
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// CHECK-NOTES-ALL: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'unsigned long' of a multiplication performed in type 'unsigned int'
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// CHECK-NOTES-ALL: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning
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// CHECK-NOTES-C: (unsigned long)( )
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// CHECK-NOTES-CXX: static_cast<unsigned long>( )
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// CHECK-NOTES-ALL: :[[@LINE-5]]:10: note: perform multiplication in a wider type
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// CHECK-NOTES-C: (unsigned long)
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// CHECK-NOTES-CXX: static_cast<unsigned long>()
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}
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long t4(int a, unsigned int b) {
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return a * b;
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// CHECK-NOTES-ALL: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'long' of a multiplication performed in type 'unsigned int'
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// CHECK-NOTES-ALL: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning
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// CHECK-NOTES-ALL: :[[@LINE-3]]:10: note: perform multiplication in a wider type
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}
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unsigned long t5(int a, unsigned int b) {
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return a * b;
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// CHECK-NOTES-ALL: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'unsigned long' of a multiplication performed in type 'unsigned int'
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// CHECK-NOTES-ALL: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning
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// CHECK-NOTES-ALL: :[[@LINE-3]]:10: note: perform multiplication in a wider type
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}
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long t6(unsigned int a, unsigned int b) {
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return a * b;
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// CHECK-NOTES-ALL: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'long' of a multiplication performed in type 'unsigned int'
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// CHECK-NOTES-ALL: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning
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// CHECK-NOTES-ALL: :[[@LINE-3]]:10: note: perform multiplication in a wider type
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}
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unsigned long t7(unsigned int a, unsigned int b) {
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return a * b;
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// CHECK-NOTES-ALL: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'unsigned long' of a multiplication performed in type 'unsigned int'
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// CHECK-NOTES-ALL: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning
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// CHECK-NOTES-ALL: :[[@LINE-3]]:10: note: perform multiplication in a wider type
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}
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long t8(int a, int b) {
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return (a * b);
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// CHECK-NOTES-ALL: :[[@LINE-1]]:11: warning: performing an implicit widening conversion to type 'long' of a multiplication performed in type 'int'
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// CHECK-NOTES-ALL: :[[@LINE-2]]:11: note: make conversion explicit to silence this warning
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// CHECK-NOTES-ALL: :[[@LINE-3]]:11: note: perform multiplication in a wider type
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}
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long t9(int a, int b) {
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return (a)*b;
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// CHECK-NOTES-ALL: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'long' of a multiplication performed in type 'int'
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// CHECK-NOTES-ALL: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning
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// CHECK-NOTES-ALL: :[[@LINE-3]]:10: note: perform multiplication in a wider type
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}
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long n10(int a, int b) {
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return (long)(a * b);
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}
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long n11(int a, int b) {
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return (unsigned long)(a * b);
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}
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long n12(long a, int b) {
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return a * b;
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}
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long n13(int a, long b) {
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return a * b;
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}
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long n14(int a, int b, int c) {
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return a + b * c;
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}
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long n15(int a, int b, int c) {
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return a * b + c;
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}
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#ifdef __cplusplus
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template <typename T1, typename T2>
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T2 template_test(T1 a, T1 b) {
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return a * b;
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}
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long template_test_instantiation(int a, int b) {
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return template_test<int, long>(a, b);
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}
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#endif
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