I have been using the macro solution, as it is outlined here. However, there is a mention on how to view them without macros. I am referring to GDB version 7 and above.
Would someone illustrate how?
Thanks
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which numeric version of gdb are you talking aboutanon– anon2010-03-22 12:12:05 +00:00Commented Mar 22, 2010 at 12:12
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1Possible duplicate of How to pretty-print STL containers in GDB?Ciro Santilli OurBigBook.com– Ciro Santilli OurBigBook.com2017-09-24 10:25:55 +00:00Commented Sep 24, 2017 at 10:25
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2 Answers
Get the python viewers from SVN
svn://gcc.gnu.org/svn/gcc/trunk/libstdc++-v3/python
Add the following to your ~/.gdbinit
python
import sys
sys.path.insert(0, '/path/to/pretty-printers/dir')
from libstdcxx.v6.printers import register_libstdcxx_printers
register_libstdcxx_printers (None)
end
Then print should just work:
std::map<int, std::string> the_map;
the_map[23] = "hello";
the_map[1024] = "world";
In gdb:
(gdb) print the_map
$1 = std::map with 2 elements = { [23] = "hello", [1024] = "world" }
To get back to the old view use print /r (/r is for raw).
4 Comments
vehomzzz
And how to actually use it in GDB to print the contents? Is anything need to be set. thx
McBeth
Once that load code is in .gdbinit, then print should just work, to get back to the old view, you do a print /r (/r is for raw) (formatting apparently sucks in comments, my apologies) std::map<int, std::string> the_map; the_map[23] = "hello"; the_map[1024] = "world"; (gdb) print the_map $1 = std::map with 2 elements = { [23] = "hello", [1024] = "world" }
camh
Consider editing your answer to include this information in your comment. That way the formatting wont suck.
Nathan Fellman
please put this code sample in the answer. I can't read it in the comments.
The libstdcxx_printers are included with recent versions of GCC, so if you're using GCC 4.5 or later then you don't need to do anything, pretty printing Just Works.
(gdb) p v
$1 = std::vector of length 3, capacity 3 = {std::set with 3 elements = {
[0] = 1, [1] = 2, [2] = 3}, std::set with 2 elements = {[0] = 12,
[1] = 13}, std::set with 1 elements = {[0] = 23}}
(gdb) p v[1]
$2 = std::set with 2 elements = {[0] = 12, [1] = 13}
To disable the pretty printing use p/r or print/r to get "raw" output.
