File: enum-constexpr-conversion-system-header.h

package info (click to toggle)
llvm-toolchain-18 1%3A18.1.8-20
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 1,909,296 kB
  • sloc: cpp: 6,667,975; ansic: 1,440,452; asm: 883,619; python: 230,549; objc: 76,880; f90: 74,238; lisp: 35,989; pascal: 16,571; sh: 10,229; perl: 7,459; ml: 5,047; awk: 3,523; makefile: 2,992; javascript: 2,149; xml: 892; fortran: 649; cs: 573
file content (19 lines) | stat: -rw-r--r-- 665 bytes parent folder | download | duplicates (6) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
// System header for testing that -Wenum-constexpr-conversion leads to an error
// when included in user code, or when the system macro is used.

enum SystemEnum
{
    a = 0,
    b = 1,
};

void testValueInRangeOfEnumerationValuesInSystemHeader()
{
    constexpr SystemEnum x1 = static_cast<SystemEnum>(123);
    // expected-error@-1 {{integer value 123 is outside the valid range of values [0, 1] for the enumeration type 'SystemEnum'}}

    const SystemEnum x2 = static_cast<SystemEnum>(123);  // ok, not a constant expression context
}

#define CONSTEXPR_CAST_TO_SYSTEM_ENUM_OUTSIDE_OF_RANGE \
    constexpr SystemEnum system_enum = static_cast<SystemEnum>(123)