18 lines · cpp
1// RUN: %check_clang_tidy %s bugprone-signed-char-misuse %t -- -- -funsigned-char2 3// Test framework needs something to catch, otherwise it fails.4int SignedChar() {5 signed char CCharacter = -5;6 int NCharacter;7 NCharacter = CCharacter;8 // CHECK-MESSAGES: [[@LINE-1]]:16: warning: 'signed char' to 'int' conversion; consider casting to 'unsigned char' first. [bugprone-signed-char-misuse]9 10 return NCharacter;11}12 13int PlainChar() {14 char CCharacter = -5;15 int NCharacter = CCharacter; // no warning16 return NCharacter;17}18