[Bug c++/24154] "auto" return type on template class methods prevents gdb from being able to print their return values

[Bug c++/24154] "auto" return type on template class methods prevents gdb from being able to print their return values

[trass3r at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=24154

trass3r <trass3r at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |trass3r at gmail dot com

-- 
You are receiving this mail because:
You are on the CC list for the bug.

[Bug c++/24154] "auto" return type on template class methods prevents gdb from being able to print their return values

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=24154

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tromey at sourceware dot org

--- Comment #1 from Tom Tromey <tromey at sourceware dot org> ---
The compiler emits a pretty bogus-looking return type for the operator:

 <2><43>: Abbrev Number: 4 (DW_TAG_subprogram)
    <44>   DW_AT_external    : 1
    <44>   DW_AT_name        : (indirect string, offset: 0x20): operator[]
...
    <4f>   DW_AT_type        : <0x80>


 <1><80>: Abbrev Number: 11 (DW_TAG_reference_type)
    <81>   DW_AT_byte_size   : 8
    <82>   DW_AT_type        : <0x7b>

Ok so far, but look at 7b:

 <1><7b>: Abbrev Number: 10 (DW_TAG_unspecified_type)
    <7c>   DW_AT_name        : (indirect string, offset: 0x2b): auto


What I would expect here is for the compiler to replace "auto"
with the concrete type of the instantiation.  Using "auto"
and having it be an unspecified type seems incorrect.  Also,
gdb doesn't have enough information to deduce the actual type.

-- 
You are receiving this mail because:
You are on the CC list for the bug.