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* [Bug c++/16180] New: print iterator+1 = Attempt to take address of value not located in memory.
@ 2013-11-17 13:08 jan.kratochvil at redhat dot com
2013-11-19 16:10 ` [Bug c++/16180] " tromey at redhat dot com
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: jan.kratochvil at redhat dot com @ 2013-11-17 13:08 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=16180
Bug ID: 16180
Summary: print iterator+1 = Attempt to take address of value
not located in memory.
Product: gdb
Version: HEAD
Status: NEW
Severity: normal
Priority: P2
Component: c++
Assignee: unassigned at sourceware dot org
Reporter: jan.kratochvil at redhat dot com
Target: x86_64-unknown-linux-gnu
(gdb) b 8
(gdb) r
(gdb) p it
$1 = 1
(gdb) p it+1
Attempt to take address of value not located in memory.
(gdb) p it+longvar1
Attempt to take address of value not located in memory.
(gdb) p it.operator+(longvar1)
Attempt to take address of value not located in memory.
(gdb) p it.'operator+'(longvar1)
Attempt to take address of value not located in memory.
(gdb) _
GNU gdb (GDB) 7.6.50.20131109-cvs
#include <vector>
int main() {
std::vector<int> vec;
long longvar1(1);
vec.push_back(1);
vec.push_back(2);
for (std::vector<int>::iterator it=vec.begin();it!=vec.end();it=it+1)
++*it;
}
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* [Bug c++/16180] print iterator+1 = Attempt to take address of value not located in memory.
2013-11-17 13:08 [Bug c++/16180] New: print iterator+1 = Attempt to take address of value not located in memory jan.kratochvil at redhat dot com
@ 2013-11-19 16:10 ` tromey at redhat dot com
2020-05-12 12:27 ` ssbssa at sourceware dot org
2020-05-12 15:45 ` jan.kratochvil at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: tromey at redhat dot com @ 2013-11-19 16:10 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=16180
Tom Tromey <tromey at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |tromey at redhat dot com
--- Comment #1 from Tom Tromey <tromey at redhat dot com> ---
Maybe a dup of bug#11606
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* [Bug c++/16180] print iterator+1 = Attempt to take address of value not located in memory.
2013-11-17 13:08 [Bug c++/16180] New: print iterator+1 = Attempt to take address of value not located in memory jan.kratochvil at redhat dot com
2013-11-19 16:10 ` [Bug c++/16180] " tromey at redhat dot com
@ 2020-05-12 12:27 ` ssbssa at sourceware dot org
2020-05-12 15:45 ` jan.kratochvil at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: ssbssa at sourceware dot org @ 2020-05-12 12:27 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=16180
Hannes Domani <ssbssa at sourceware dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ssbssa at sourceware dot org
--- Comment #2 from Hannes Domani <ssbssa at sourceware dot org> ---
I need to dereference the iterator, but other than that, I can reproduce this
with gdb 7.8:
(gdb) p it
$1 = {_M_current = 0x362110}
(gdb) p it+1
$2 = {_M_current = 0x362114}
(gdb) p *it
$3 = (int &) @0x362110: 1
(gdb) p *(it+1)
Attempt to take address of value not located in memory.
(gdb) p *(it+longvar1)
Attempt to take address of value not located in memory.
But since 7.10, this works fine:
(gdb) p it
$1 = {_M_current = 0x342110}
(gdb) p it+1
$2 = {_M_current = 0x342114}
(gdb) p *it
$3 = (int &) @0x342110: 1
(gdb) p *(it+1)
$4 = (int &) @0x342114: 2
(gdb) p *(it+longvar1)
$5 = (int &) @0x342114: 2
So I think this can be closed.
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* [Bug c++/16180] print iterator+1 = Attempt to take address of value not located in memory.
2013-11-17 13:08 [Bug c++/16180] New: print iterator+1 = Attempt to take address of value not located in memory jan.kratochvil at redhat dot com
2013-11-19 16:10 ` [Bug c++/16180] " tromey at redhat dot com
2020-05-12 12:27 ` ssbssa at sourceware dot org
@ 2020-05-12 15:45 ` jan.kratochvil at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: jan.kratochvil at redhat dot com @ 2020-05-12 15:45 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=16180
Jan Kratochvil <jan.kratochvil at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
CC| |jan.kratochvil at redhat dot com
--- Comment #3 from Jan Kratochvil <jan.kratochvil at redhat dot com> ---
Verified on: gdb-8.3.50.20190824-30.fc31.x86_64
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end of thread, other threads:[~2020-05-12 15:45 UTC | newest]
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2013-11-17 13:08 [Bug c++/16180] New: print iterator+1 = Attempt to take address of value not located in memory jan.kratochvil at redhat dot com
2013-11-19 16:10 ` [Bug c++/16180] " tromey at redhat dot com
2020-05-12 12:27 ` ssbssa at sourceware dot org
2020-05-12 15:45 ` jan.kratochvil at redhat dot com
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