http://llvm.org/bugs/show_bug.cgi?id=20911
Bug ID: 20911
Summary: Clang asserts when checked for overloaded binary
operator supplied with a default argument
Product: clang
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
Created attachment 13022
--> http://llvm.org/bugs/attachment.cgi?id=13022&action=edit
unit test case
I have attached the pre-processed test case for your reference.
Sample compilation line
clang++ -target arm-none-linux-gnueabi -mcpu=cortex-a9 -O2 test.ii -c
clang-3.6:
/prj/llvm-arm/home/nightly/src/community-mainline/llvm/tools/clang/include/clang/AST/Expr.h:134:
void clang::Expr::setType(clang::QualType): Assertion `(t.isNull() ||
!t->isReferenceType()) && "Expressions can't have reference type"' failed.
The original test case is supposed to generate an error as per C++ standard
since operator+ can not have default arguments.
g++ -c test.ii generated the following diagnostic
test.c:7:30: error: 's' was not declared in this scope
Sam operator+(Sam &x, Sam &y=s);
^
test.c:7:31: error: 'Sam operator+(Sam&, Sam&)' cannot have default arguments
Sam operator+(Sam &x, Sam &y=s);
^
test.c: In function 'Sam operator+(Sam&, Sam&)':
test.c:10:12: error: could not convert '(x.Sam::i + y.Sam::i)' from 'int' to
'Sam'
return x.i+y.i;
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