89 lines
2.2 KiB
C
89 lines
2.2 KiB
C
// RUN: %clang_cc1 -Wchar-subscripts -fsyntax-only -verify %s
|
|
|
|
void t1(void) {
|
|
int array[1] = { 0 };
|
|
char subscript = 0;
|
|
int val = array[subscript]; // expected-warning{{array subscript is of type 'char'}}
|
|
}
|
|
|
|
void t2(void) {
|
|
int array[1] = { 0 };
|
|
char subscript = 0;
|
|
int val = subscript[array]; // expected-warning{{array subscript is of type 'char'}}
|
|
}
|
|
|
|
void t3(void) {
|
|
int *array = 0;
|
|
char subscript = 0;
|
|
int val = array[subscript]; // expected-warning{{array subscript is of type 'char'}}
|
|
}
|
|
|
|
void t4(void) {
|
|
int *array = 0;
|
|
char subscript = 0;
|
|
int val = subscript[array]; // expected-warning{{array subscript is of type 'char'}}
|
|
}
|
|
|
|
char returnsChar(void);
|
|
void t5(void) {
|
|
int *array = 0;
|
|
int val = array[returnsChar()]; // expected-warning{{array subscript is of type 'char'}}
|
|
}
|
|
|
|
void t6(void) {
|
|
int array[1] = { 0 };
|
|
signed char subscript = 0;
|
|
int val = array[subscript]; // no warning for explicit signed char
|
|
}
|
|
|
|
void t7(void) {
|
|
int array[1] = { 0 };
|
|
unsigned char subscript = 0;
|
|
int val = array[subscript]; // no warning for unsigned char
|
|
}
|
|
|
|
typedef char CharTy;
|
|
void t8(void) {
|
|
int array[1] = { 0 };
|
|
CharTy subscript = 0;
|
|
int val = array[subscript]; // expected-warning{{array subscript is of type 'char'}}
|
|
}
|
|
|
|
typedef signed char SignedCharTy;
|
|
void t9(void) {
|
|
int array[1] = { 0 };
|
|
SignedCharTy subscript = 0;
|
|
int val = array[subscript]; // no warning for explicit signed char
|
|
}
|
|
|
|
typedef unsigned char UnsignedCharTy;
|
|
void t10(void) {
|
|
int array[1] = { 0 };
|
|
UnsignedCharTy subscript = 0;
|
|
int val = array[subscript]; // no warning for unsigned char
|
|
}
|
|
|
|
void t11(void) {
|
|
int array[256] = { 0 };
|
|
int val = array['a']; // no warning for char with known positive value
|
|
}
|
|
|
|
void t12(void) {
|
|
int array[256] = { 0 };
|
|
char b = 'a';
|
|
int val = array[b]; // expected-warning{{array subscript is of type 'char'}}
|
|
}
|
|
|
|
void t13(void) {
|
|
int array[256] = { 0 };
|
|
const char b = 'a';
|
|
int val = array[b]; // expected-warning{{array subscript is of type 'char'}}
|
|
}
|
|
|
|
void t14(void) {
|
|
int array[256] = { 0 }; // expected-note {{array 'array' declared here}}
|
|
const char b = -1;
|
|
// expected-warning@+2 {{array subscript is of type 'char'}}
|
|
// expected-warning@+1 {{array index -1 is before the beginning of the array}}
|
|
int val = array[b];
|
|
}
|