1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
// RUN: %clang_analyze_cc1 \
// RUN: -analyzer-checker=core,alpha.cplusplus.EnumCastOutOfRange \
// RUN: -verify %s
enum En_t {
En_0 = -4,
En_1,
En_2 = 1,
En_3,
En_4 = 4
};
void unscopedUnspecifiedCStyle() {
enum En_t Below = (enum En_t)(-5); // expected-warning {{not in the valid range}}
enum En_t NegVal1 = (enum En_t)(-4); // OK.
enum En_t NegVal2 = (enum En_t)(-3); // OK.
enum En_t InRange1 = (enum En_t)(-2); // expected-warning {{not in the valid range}}
enum En_t InRange2 = (enum En_t)(-1); // expected-warning {{not in the valid range}}
enum En_t InRange3 = (enum En_t)(0); // expected-warning {{not in the valid range}}
enum En_t PosVal1 = (enum En_t)(1); // OK.
enum En_t PosVal2 = (enum En_t)(2); // OK.
enum En_t InRange4 = (enum En_t)(3); // expected-warning {{not in the valid range}}
enum En_t PosVal3 = (enum En_t)(4); // OK.
enum En_t Above = (enum En_t)(5); // expected-warning {{not in the valid range}}
}
enum En_t unused;
void unusedExpr() {
// Following line is not something that EnumCastOutOfRangeChecker should
// evaluate. Checker should either ignore this line or process it without
// producing any warnings. However, compilation will (and should) still
// generate a warning having nothing to do with this checker.
unused; // expected-warning {{expression result unused}}
}
|
