75 lines
3.0 KiB
C
75 lines
3.0 KiB
C
|
// RUN: %clang_cc1 -x c -fsyntax-only -verify -Wint-in-bool-context %s
|
||
|
|
// RUN: %clang_cc1 -x c -fsyntax-only -verify -Wall %s
|
||
|
|
// RUN: %clang_cc1 -x c++ -fsyntax-only -verify -Wint-in-bool-context %s
|
||
|
|
// RUN: %clang_cc1 -x c++ -fsyntax-only -verify -Wall %s
|
||
|
|
|
||
|
|
#define ONE 1
|
||
|
|
#define TWO 2
|
||
|
|
|
||
|
|
#define SHIFT(l, r) l << r
|
||
|
|
#define MM a << a
|
||
|
|
#define AF 1 << 7
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
typedef bool boolean;
|
||
|
|
#else
|
||
|
|
typedef _Bool boolean;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
enum num {
|
||
|
|
zero,
|
||
|
|
one,
|
||
|
|
two,
|
||
|
|
};
|
||
|
|
|
||
|
|
int test(int a, unsigned b, enum num n) {
|
||
|
|
boolean r;
|
||
|
|
r = a << a; // expected-warning {{converting the result of '<<' to a boolean; did you mean '(a << a) != 0'?}}
|
||
|
|
r = MM; // expected-warning {{converting the result of '<<' to a boolean; did you mean '(a << a) != 0'?}}
|
||
|
|
r = (1 << 7); // expected-warning {{converting the result of '<<' to a boolean always evaluates to true}}
|
||
|
|
r = 2UL << 2; // expected-warning {{converting the result of '<<' to a boolean always evaluates to true}}
|
||
|
|
r = 0 << a; // expected-warning {{converting the result of '<<' to a boolean always evaluates to false}}
|
||
|
|
r = 0 << 2; // expected-warning {{converting the result of '<<' to a boolean always evaluates to false}}
|
||
|
|
r = 1 << 0; // expected-warning {{converting the result of '<<' to a boolean always evaluates to true}}
|
||
|
|
r = 1 << 2; // expected-warning {{converting the result of '<<' to a boolean always evaluates to true}}
|
||
|
|
r = 1ULL << 2; // expected-warning {{converting the result of '<<' to a boolean always evaluates to true}}
|
||
|
|
r = 2 << b; // expected-warning {{converting the result of '<<' to a boolean; did you mean '(2 << b) != 0'?}}
|
||
|
|
r = (unsigned)(2 << b);
|
||
|
|
r = b << 7;
|
||
|
|
r = (1 << a); // expected-warning {{converting the result of '<<' to a boolean; did you mean '(1 << a) != 0'?}}
|
||
|
|
r = TWO << a; // expected-warning {{converting the result of '<<' to a boolean; did you mean '(2 << a) != 0'?}}
|
||
|
|
r = a << 7; // expected-warning {{converting the result of '<<' to a boolean; did you mean '(a << 7) != 0'?}}
|
||
|
|
r = ONE << a; // expected-warning {{converting the result of '<<' to a boolean; did you mean '(1 << a) != 0'?}}
|
||
|
|
if (TWO << a) // expected-warning {{converting the result of '<<' to a boolean; did you mean '(2 << a) != 0'?}}
|
||
|
|
return a;
|
||
|
|
|
||
|
|
for (a = 0; 1 << a; a++) // expected-warning {{converting the result of '<<' to a boolean; did you mean '(1 << a) != 0'?}}
|
||
|
|
;
|
||
|
|
|
||
|
|
if (a << TWO) // expected-warning {{converting the result of '<<' to a boolean; did you mean '(a << 2) != 0'?}}
|
||
|
|
return a;
|
||
|
|
|
||
|
|
if (n || two)
|
||
|
|
// expected-warning@-1 {{converting the enum constant to a boolean}}
|
||
|
|
return a;
|
||
|
|
|
||
|
|
if (n == one || two)
|
||
|
|
// expected-warning@-1 {{converting the enum constant to a boolean}}
|
||
|
|
return a;
|
||
|
|
|
||
|
|
if (r && two)
|
||
|
|
// expected-warning@-1 {{converting the enum constant to a boolean}}
|
||
|
|
return a;
|
||
|
|
|
||
|
|
if (two && r)
|
||
|
|
// expected-warning@-1 {{converting the enum constant to a boolean}}
|
||
|
|
return a;
|
||
|
|
|
||
|
|
if (n == one && two)
|
||
|
|
// expected-warning@-1 {{converting the enum constant to a boolean}}
|
||
|
|
return a;
|
||
|
|
|
||
|
|
// Don't warn in macros.
|
||
|
|
return SHIFT(1, a);
|
||
|
|
}
|