Boost Filesystem Error, am I Linking?
More trouble. Eclipse CDT tells me that when I try and use boost::filesystem::initial_path<boost::filesystem::path>() that in include/boost/filesystem/operations.hpp on line 503 that I have a "undefined reference to 'boost::filesystem::detail::get_current_path_api(std::string&)'" I went to Google and found a forum thread where the person wasn't linking against Boost's Filesystem library. I looked in the lib/ section under my MinGW installation, however, and found libboost_filesystem.a, right where it should be. Is there still the potential for it to not be linking, or am I just not using something correctly? I tried a simpler usage of the same function and got the same problem. I should warn you, I'm still rather green at C++, all my previous programming training being in Java. I'm still getting acclimated to C++, pretty quickly, but still every once in a while I run into a wall and need someone to pick me up and steer me in the right direction, so to speak. Thanks in advance for any help you can give!
How can I instantiate a static pointer of a class using boost::scoped_pointer ? like for example: static classA *A; int main { ... ... A = new ClassA (PArameter list); } How do I do ths with boost::scoped_pointer. --------------------------------- Now you can chat without downloading messenger. Click here to know how.
________________________________ From: boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of swapna Sent: 21 November 2007 10:10 To: boost-users@lists.boost.org Subject: [Boost-users] scoped_ptr How can I instantiate a static pointer of a class using boost::scoped_pointer ? like for example: static classA *A; int main { ... ... A = new ClassA (PArameter list); } How do I do ths with boost::scoped_pointer. ________________________________ Now you can chat without downloading messenger. Click here <http://in.rd.yahoo.com/tagline_webmessenger_5/*http://in.messenger.yaho o.com/webmessengerpromo.php> to know how. Surely the definition of the scoped_ptr is therefore outside of the scope in which you use it, so you should probably be using shared_ptr? James This message (including any attachments) contains confidential and/or proprietary information intended only for the addressee. Any unauthorized disclosure, copying, distribution or reliance on the contents of this information is strictly prohibited and may constitute a violation of law. If you are not the intended recipient, please notify the sender immediately by responding to this e-mail, and delete the message from your system. If you have any questions about this e-mail please notify the sender immediately.
How can I instantiate a static pointer of a class using boost::scoped_pointer ? like for example: static classA *A; int main { ... ... A = new ClassA (PArameter list); } How do I do ths with boost::scoped_pointer. --------------------------------- Save all your chat conversations. Find them online.
See inline swapna wrote:
How can I instantiate a static pointer of a class using boost::scoped_pointer ? like for example:
static classA *A;
namespace { boost::scoped_ptr<classA> aPtr; }
int main { ... ... A = new ClassA (PArameter list);
aPtr.reset( new ClassA(ParameterList) );
} How do I do this with boost::scoped_pointer.
But there is no need to use static or unnamed namespace as the same effect could be accomplished with aPtr being declared within the scope of main, AFAIC. Jeff Flinn
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Chris Miller -
Hughes, James -
Jeff Flinn -
swapna