Luca Severini wrote:
Hello everyone,
I'm a newbie to boost libraries but I have some good experience in software development on Mac OS. Today I use downloaded and used boost for the first time. I use a MacBook Pro with Snow Leopard 10.6.2. The IDE is Xcode 3.2.1 Writing some very basic code to learn how to use the filesystem library I got assertions (below) simply iterating recursilvely through a local directory to list its content.
/Developer/Test/TestFolder Boost_Test(57690) malloc: *** error for object 0xe518: pointer being freed was not allocated *** set a breakpoint in malloc_error_break to debug
std::string is broken in XCode 3.2.1. According to the collective intelligence of the web, one reason is that its standard library has been built with _GLIBCXX_FULLY_DYNAMIC_STRING defined, whereas the IDE by default doesn't define it, leading to random crashes of the sort you report. Others claim that there is a mismatch in the definitions of _GLIBCXX_DEBUG=1 _GLIBCXX_DEBUG_PEDANTIC=1 in a debug build; yet others report problems with "Symbols Hidden by Default", although this may not be the cause of your problem. In your case, I'd first try the _GLIBCXX_FULLY_DYNAMIC_STRING define. BTW, a std::string is never uninitialized. It's initialized to an empty string by default. http://stackoverflow.com/questions/1603300/xcode-3-2-1-and-c-string-fails http://groups.google.com/group/boost-list/browse_thread/thread/1c5a614a9e8c9...