1 // RUN: %check_clang_tidy -std=c99 %s bugprone-implicit-widening-of-multiplication-result %t -- -- -target x86_64-unknown-unknown -x c
2 // RUN: %check_clang_tidy %s bugprone-implicit-widening-of-multiplication-result %t -- -- -target x86_64-unknown-unknown -x c++
3
t0(short a,int b)4 long t0(short a, int b) {
5 return a * b;
6 // CHECK-NOTES: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'long' of a multiplication performed in type 'int'
7 // CHECK-NOTES: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning
8 // CHECK-NOTES: :[[@LINE-3]]:10: note: perform multiplication in a wider type
9 }
t1(short a,short b)10 long t1(short a, short b) {
11 return a * b;
12 // CHECK-NOTES: :[[@LINE-1]]:10: warning: performing an implicit widening conversion to type 'long' of a multiplication performed in type 'int'
13 // CHECK-NOTES: :[[@LINE-2]]:10: note: make conversion explicit to silence this warning
14 // CHECK-NOTES: :[[@LINE-3]]:10: note: perform multiplication in a wider type
15 }
16