1 // RUN: %clang_cc1 -Wchar-subscripts -fsyntax-only -verify %s 2 3 void t1() { 4 int array[1] = { 0 }; 5 char subscript = 0; 6 int val = array[subscript]; // expected-warning{{array subscript is of type 'char'}} 7 } 8 9 void t2() { 10 int array[1] = { 0 }; 11 char subscript = 0; 12 int val = subscript[array]; // expected-warning{{array subscript is of type 'char'}} 13 } 14 15 void t3() { 16 int *array = 0; 17 char subscript = 0; 18 int val = array[subscript]; // expected-warning{{array subscript is of type 'char'}} 19 } 20 21 void t4() { 22 int *array = 0; 23 char subscript = 0; 24 int val = subscript[array]; // expected-warning{{array subscript is of type 'char'}} 25 } 26 27 char returnsChar(); 28 void t5() { 29 int *array = 0; 30 int val = array[returnsChar()]; // expected-warning{{array subscript is of type 'char'}} 31 } 32 33 void t6() { 34 int array[1] = { 0 }; 35 signed char subscript = 0; 36 int val = array[subscript]; // no warning for explicit signed char 37 } 38 39 void t7() { 40 int array[1] = { 0 }; 41 unsigned char subscript = 0; 42 int val = array[subscript]; // no warning for unsigned char 43 } 44 45 typedef char CharTy; 46 void t8() { 47 int array[1] = { 0 }; 48 CharTy subscript = 0; 49 int val = array[subscript]; // expected-warning{{array subscript is of type 'char'}} 50 } 51 52 typedef signed char SignedCharTy; 53 void t9() { 54 int array[1] = { 0 }; 55 SignedCharTy subscript = 0; 56 int val = array[subscript]; // no warning for explicit signed char 57 } 58 59 typedef unsigned char UnsignedCharTy; 60 void t10() { 61 int array[1] = { 0 }; 62 UnsignedCharTy subscript = 0; 63 int val = array[subscript]; // no warning for unsigned char 64 } 65
