https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79133
Bug ID: 79133
Summary: lambda capture shadowing parameter & decltype
confusion
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: nathan at gcc dot gnu.org
Target Milestone: ---
Created attachment 40535
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40535&action=edit
reproducer
When a simple lambda capture and a lambda parameter share a name, the capture
object is seen inside the lambda. Except inside decltype, which sees the
parameter.
The attached testcase produces (at -O2):
subq $8, %rsp
movl $1, %edi <-- size of lambda parm 'z'
call _Z3Barj
movl $4, %edi <-- size of lambda capture 'z'
call _Z3Barj
movl $5, %eax <-- value of lambda capture 'z'
addq $8, %rsp
ret
Possibly related email:
https://gcc.gnu.org/ml/gcc-patches/2017-01/msg01331.html
