| // RUN: %check_clang_tidy -std=c99 %s bugprone-implicit-widening-of-multiplication-result %t -- -- -target x86_64-unknown-unknown -x c |
| // RUN: %check_clang_tidy %s bugprone-implicit-widening-of-multiplication-result %t -- -- -target x86_64-unknown-unknown -x c++ |
| |
| // RUN: %check_clang_tidy -std=c99 %s bugprone-implicit-widening-of-multiplication-result %t -- -- -target x86_64-unknown-unknown -x c -fsigned-char |
| // RUN: %check_clang_tidy %s bugprone-implicit-widening-of-multiplication-result %t -- -- -target x86_64-unknown-unknown -x c++ -fsigned-char |
| |
| // RUN: %check_clang_tidy -std=c99 %s bugprone-implicit-widening-of-multiplication-result %t -- -- -target x86_64-unknown-unknown -x c -funsigned-char |
| // RUN: %check_clang_tidy %s bugprone-implicit-widening-of-multiplication-result %t -- -- -target x86_64-unknown-unknown-x c++ -funsigned-char |
| |
| long t0(char a, char b) { |
| return a * b; |
| // CHECK-NOTES: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'long' of a multiplication performed in type 'int' |
| // CHECK-NOTES: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning |
| // CHECK-NOTES: :[[@LINE-3]]:10: note: perform multiplication in a wider type |
| } |
| unsigned long t1(char a, char b) { |
| return a * b; |
| // CHECK-NOTES: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'unsigned long' of a multiplication performed in type 'int' |
| // CHECK-NOTES: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning |
| // CHECK-NOTES: :[[@LINE-3]]:10: note: perform multiplication in a wider type |
| } |
| |
| long t2(unsigned char a, char b) { |
| return a * b; |
| // CHECK-NOTES: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'long' of a multiplication performed in type 'int' |
| // CHECK-NOTES: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning |
| // CHECK-NOTES: :[[@LINE-3]]:10: note: perform multiplication in a wider type |
| } |
| unsigned long t3(unsigned char a, char b) { |
| return a * b; |
| // CHECK-NOTES: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'unsigned long' of a multiplication performed in type 'int' |
| // CHECK-NOTES: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning |
| // CHECK-NOTES: :[[@LINE-3]]:10: note: perform multiplication in a wider type |
| } |
| |
| long t4(char a, unsigned char b) { |
| return a * b; |
| // CHECK-NOTES: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'long' of a multiplication performed in type 'int' |
| // CHECK-NOTES: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning |
| // CHECK-NOTES: :[[@LINE-3]]:10: note: perform multiplication in a wider type |
| } |
| unsigned long t5(char a, unsigned char b) { |
| return a * b; |
| // CHECK-NOTES: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'unsigned long' of a multiplication performed in type 'int' |
| // CHECK-NOTES: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning |
| // CHECK-NOTES: :[[@LINE-3]]:10: note: perform multiplication in a wider type |
| } |
| |
| long t6(unsigned char a, unsigned char b) { |
| return a * b; |
| // CHECK-NOTES: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'long' of a multiplication performed in type 'int' |
| // CHECK-NOTES: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning |
| // CHECK-NOTES: :[[@LINE-3]]:10: note: perform multiplication in a wider type |
| } |
| unsigned long t7(unsigned char a, unsigned char b) { |
| return a * b; |
| // CHECK-NOTES: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'unsigned long' of a multiplication performed in type 'int' |
| // CHECK-NOTES: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning |
| // CHECK-NOTES: :[[@LINE-3]]:10: note: perform multiplication in a wider type |
| } |
| |
| long t8(signed char a, char b) { |
| return a * b; |
| // CHECK-NOTES: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'long' of a multiplication performed in type 'int' |
| // CHECK-NOTES: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning |
| // CHECK-NOTES: :[[@LINE-3]]:10: note: perform multiplication in a wider type |
| } |
| unsigned long t9(signed char a, char b) { |
| return a * b; |
| // CHECK-NOTES: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'unsigned long' of a multiplication performed in type 'int' |
| // CHECK-NOTES: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning |
| // CHECK-NOTES: :[[@LINE-3]]:10: note: perform multiplication in a wider type |
| } |
| |
| long t10(char a, signed char b) { |
| return a * b; |
| // CHECK-NOTES: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'long' of a multiplication performed in type 'int' |
| // CHECK-NOTES: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning |
| // CHECK-NOTES: :[[@LINE-3]]:10: note: perform multiplication in a wider type |
| } |
| unsigned long t11(char a, signed char b) { |
| return a * b; |
| // CHECK-NOTES: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'unsigned long' of a multiplication performed in type 'int' |
| // CHECK-NOTES: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning |
| // CHECK-NOTES: :[[@LINE-3]]:10: note: perform multiplication in a wider type |
| } |
| |
| long t12(signed char a, signed char b) { |
| return a * b; |
| // CHECK-NOTES: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'long' of a multiplication performed in type 'int' |
| // CHECK-NOTES: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning |
| // CHECK-NOTES: :[[@LINE-3]]:10: note: perform multiplication in a wider type |
| } |
| unsigned long t13(signed char a, signed char b) { |
| return a * b; |
| // CHECK-NOTES: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'unsigned long' of a multiplication performed in type 'int' |
| // CHECK-NOTES: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning |
| // CHECK-NOTES: :[[@LINE-3]]:10: note: perform multiplication in a wider type |
| } |