[Issue 21976] New: importC: enumeration constants rejects conditional expressions in parentheses
d-bugmail at puremagic.com
d-bugmail at puremagic.com
Tue May 25 18:32:53 UTC 2021
https://issues.dlang.org/show_bug.cgi?id=21976
Issue ID: 21976
Summary: importC: enumeration constants rejects conditional
expressions in parentheses
Product: D
Version: D2
Hardware: All
OS: All
Status: NEW
Severity: major
Priority: P1
Component: dmd
Assignee: nobody at puremagic.com
Reporter: ibuclaw at gdcproject.org
C99 6.7.2.2-1 syntax says the grammar is:
enumerator:
enumeration-constant
enumeration-constant = constant-expression
And C99 6.6 says:
constant-expression:
conditional-expression
This works
---
enum constant_expression
{
ce_first,
ce_second = ce_first == 0 ? 1 : 0,
};
---
And yet, this fails:
---
enum constant_expression
{
ce_first,
ce_second = (ce_first == 0) ? 1 : 0,
};
---
With the message:
---
Error: found `==` when expecting `)`
Error: found `)` when expecting `}`
Error: `=`, `;` or `,` expected
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