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From: "yerimyah1 at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug mi/28201] New: Unable to show children and to string
 pretty-printer values at the same time.
Date: Fri, 06 Aug 2021 14:38:46 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28201

            Bug ID: 28201
           Summary: Unable to show children and to string pretty-printer
                    values at the same time.
           Product: gdb
           Version: 10.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: mi
          Assignee: unassigned at sourceware dot org
          Reporter: yerimyah1 at gmail dot com
  Target Milestone: ---

For example if i create a vector;=20

```
std::vector<std::string> aVector { "this", "is", "a", "standard", "list"}

```

in the normal gdb command line i would get=20


```
p aVector=20
$1 =3D std::vector of length 5, capacity 5 =3D {"this", "is ", "a", "standa=
rd",
"list"}

```
however in GDB/MI


```=20
-var-create - * "aVector"

--
result-class: done
name: var21
numchild: 0
value: {...}
type: std::vector<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > > >
thread-id: 1
displayhint: array
dynamic: 1
has_more: 1

```

the to_string value of the std::vector pretty printer is gone and replaced =
by
"{...}"

the values is meant to show the size of the vector and very valuable when
debugging.

with the help of my mentor i was able to get the relevant part that it is
hardcoded to return `{...}` (there may be other parts) that may be relevant.

here

https://sourceware.org/git/?p=3Dbinutils-gdb.git;a=3Dblob;f=3Dgdb/c-varobj.=
c;h=3Df6db3a5d1ba77ad86e7d36a2cd94ef5fdc26069b;hb=3Drefs/heads/master#l478

https://sourceware.org/git/?p=3Dbinutils-gdb.git;a=3Dblob;f=3Dgdb/varobj.c;=
h=3Dd0c857a69060644b225f3072b96c90a44b6d1548;hb=3Drefs/heads/master#l2162


thanks

--=20
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