Re: [Jsoncpp-devel] g++ version problem??

[Baptiste L. <bap...@gm...>]

I'm also in a corporate environment with an old RedHat and stuck with gcc
4.1.2.  I do not have this issue, but I'm using our own project build
system to build jsoncpp (trunk) amalgamated sources.

The crash stack has the smell of incompatible compiler settings, but I
don't know enough to about gcc to say for sure.

I would recommend that you try using the amalgamated sources and compile
with your own build system to confirm to origin of the issue.

Baptiste.


2013/7/28 Joakim Hove <jo...@st...>

>  Hello,****
>
> ** **
>
> I have downloaded jsoncpp and successfully built it; I also issued the
> command “scons platform=linux-gcc check” to run the tests – the all passed.
> ****
>
> ** **
>
> I then created my own program to actually test this; the program compiles
> and links fine – but it goes down witn SIGSEGV when running. My program is
> ****
>
> ** **
>
> #include <json/json.h>****
>
> ** **
>
> void parseJson() {****
>
>     Json::Reader reader;****
>
> }****
>
> ** **
>
> int main(int argc , char ** argv) {****
>
>     parseJson();****
>
>     exit(0);****
>
> }****
>
> ** **
>
> I.e. it is very simple stuff. When I try putting the Json::Reader instance
> in the boyd of main{…} it seems to work.  A backtrace from gdb is inlined
> below:****
>
> ** **
>
> #0  0x0000003a560b7672 in __gnu_cxx::__exchange_and_add () from
> /usr/lib64/libstdc++.so.6****
>
> #1  0x0000000000403313 in std::string::_Rep::_M_dispose
> (this=0xffffffffffffffe9, __a=@0x7fff7fb14957)****
>
>     at
> /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/basic_string.h:232
> ****
>
> #2  0x0000000000403360 in ~basic_string (this=0x7fff7fb14ab0)****
>
>     at
> /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/basic_string.h:478
> ****
>
> #3  0x00000000004039fe in ~Reader (this=0x7fff7fb149b0) at
> /private/joaho/Parser/opm-parser/external/json/json-cpp/include/json/reader.h:23
> ****
>
> #4  0x0000000000402aba in parseJson () at
> /private/joaho/Parser/opm-parser/opm/parser/eclipse/ExternalTests/ExternalTests.cpp:50
> ****
>
> #5  0x0000000000402ad5 in main (argc=1, argv=0x7fff7fb14bc8)****
>
>     at
> /private/joaho/Parser/opm-parser/opm/parser/eclipse/ExternalTests/ExternalTests.cpp:55
> ****
>
> ** **
>
> As you can see I have a very old version of g++ (4.1.2). I am in a
> corporate environment and it is quite painful to get a newer version – do
> you think this can be the problem?****
>
> ** **
>
> Regards Joakim****
>
> ** **
>
> ** **
>
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