libstdc++

With my recent upgrade to Mac OS X 10.9 the default standard C++ library changed from libstdc++ to libc++. Since then I observe unexpected behaviour of the stringstream operator>>(double) documented in the code example below. In summary the libc++ seems to have problems with extracting double values from stringstreams when the double value is followed by a letter. I already checked the standard (2003) but I can't find any specific information if extraction should work in this case or not. So I would be grateful for any input whether this is a bug in libc++ or libstdc++. #include <sstream>

I wish to use the -fsanitize=memory flag in clang to analyse a program like the following: #include <string> #include <iostream> #include <fstream> using namespace std; void writeToFile(){ ofstream o; o.open("dum"); o<<"test"<<endl; //The error is here. //It does not matter if the file is opened this way, //or with o("dum"); o.close(); } int main(){ writeToFile(); } As far as I know, this program is correct, but when I use clang++ san.cpp -fsanitize=memory It fails (at runtime) with: UMR in __interceptor_write at offset 0 inside [0x64800000e000, +5) ==9685== WARNING: MemorySanitizer: use-of

I was creating a new project out of nothing, for testing purpose, leaving all parameter to default (I didn't made any code change), on a new ADT installation (Ubuntu Gnome 14.04 LTS, x86_64 CPU), but I have the following error in the Eclipse Console : [2014-06-11 09:03:10 - Kronos] /home/erwan/Applications/ADT/adt-bundle-linux-x86_64-20140321/sdk/build-tools/19.1.0/aapt: error while loading shared libraries: libstdc++.so.6: cannot open shared object file: No such file or directory Here is what I already tried: -> I tried to (re)install ia32-libs, libstdc++ and libstdc++6 via Ubuntu software

In order to make use of C++11 and c++14 features I have an application compiled using a newer version of gcc (4.9.1) and thus an newer version of libstdc++. The application consists of many small programs so I am linking with libstdc++ as a shared library rather than a static one (i.e. I don't wish to use -static-libstdc++) I wish to ship the new version of libstdc++ with the application under /opt//lib64 (note: that this is specifically allowed under an exception to the GPL) The new version of libstdc++.so differs with the version on the target platform only by minor version. libstdc++ is

I have the following code: #include <iostream> #include <random> int main() { std::mt19937_64 rng(std::random_device{}()); std::cout << std::uniform_int_distribution<>(0, 100)(rng) << '\n'; } I try to profile it using valgrind , but it says: vex amd64->IR: unhandled instruction bytes: 0xF 0xC7 0xF0 0x89 0x6 0xF 0x42 0xC1 vex amd64->IR: REX=0 REX.W=0 REX.R=0 REX.X=0 REX.B=0 vex amd64->IR: VEX=0 VEX.L=0 VEX.nVVVV=0x0 ESC=0F vex amd64->IR: PFX.66=0 PFX.F2=0 PFX.F3=0 ==2092== valgrind: Unrecognised instruction at address 0x4cdc1b5. ==2092== at 0x4CDC1B5:std::(anonymous namespace)::__x86_rdrand()

when I compile a c++ program in my computer using g++ and transfer the executable to run it on my university server, I get ./main: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.9' not found (required by ./main) ./main: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.14' not found (required by ./main) ./main: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.11' not found (required by ./main) The program runs well on my computer, and I don't have privileges to install any new software on my university servers. any help ? Thanks thamurath It seems you are using the standard library as a shared library