For "%hhx", printf expects an unsigned char. This makes Clang
accept a 'char' argument for that also when using -funsigned-char.
This fixes PR12761.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156388
91177308-0d34-0410-b5e6-
96231b3b80d8
break;
case BuiltinType::Char_S:
case BuiltinType::SChar:
- return T == C.UnsignedCharTy;
case BuiltinType::Char_U:
case BuiltinType::UChar:
- return T == C.SignedCharTy;
+ return T == C.UnsignedCharTy || T == C.SignedCharTy;
case BuiltinType::Short:
return T == C.UnsignedShortTy;
case BuiltinType::UShort:
// RUN: %clang_cc1 -fsyntax-only -verify -Wformat-nonliteral -isystem %S/Inputs %s
+// RUN: %clang_cc1 -fsyntax-only -verify -Wformat-nonliteral -isystem %S/Inputs -fno-signed-char %s
#define __need_wint_t
#include <stdarg.h>
void test_unused_system_args(int x) {
PRINT1("%d\n", x); // no-warning{{extra argument is system header is OK}}
}
+
+void pr12761(char c) {
+ // This should not warn even with -fno-signed-char.
+ printf("%hhx", c);
+}