- Boost-users - lists.preview.boost.org

RE: [Boost-Users] Problem with regular expression
by James Zappia 23 Jul '03

23 Jul '03

You need to escape the backslash in your exp variable. Here's (1) that works. #include <iostream> #include <string> #include <boost/regex.hpp> using namespace std; using namespace boost; int main() { regex exp("\\s(ab)*", regbase::perl); // note the escaped \s here cmatch what; if ( regex_match(" ababab", what, exp) ) { string str = what[0]; cout << str << endl; } } Regards, James -----… [View More]

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RE: [Boost-Users] date-time library and ispunct() ambiguity under MSVC6
by Jeff Garland 23 Jul '03

23 Jul '03

Carl wrote: > I get the following compilation error for this simple program under MSVC6: > > ************** test.cpp****************** > #include <iostream> > #include "boost/date_time/gregorian/gregorian.hpp" > > int main() > { > using namespace std; > > cout << ispunct(',') << endl; > > return 0; > } > > ************************************ > > error: > --------------------Configuration: names_test - Win32 > … [View More]

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weak_ptr
by Jason Winnebeck 23 Jul '03

23 Jul '03

Is there a reason why weak_ptr's cannot be compared with ==, or tested in a conditional? If I have two weak_ptr's, I thought it to be strange that I have to do: (w1.lock() == w2.lock()) And to test if a weak_ptr is the empty weak_ptr: if ( !(w1.lock()) ) which seems kind of awkward. Looking at the implementation, I see how the copy constructor is defined using lock. I understand what the comments are saying there. Perhaps there are some multithreaded issues that prevent equality … [View More]

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date-time library and ispunct() ambiguity under MSVC6
by Carl Waldbieser 23 Jul '03

23 Jul '03

I get the following compilation error for this simple program under MSVC6: ************** test.cpp****************** #include <iostream> #include "boost/date_time/gregorian/gregorian.hpp" int main() { using namespace std; cout << ispunct(',') << endl; return 0; } ************************************ error: --------------------Configuration: names_test - Win32 Debug-------------------- Compiling... test.cpp c:\documents and settings\waldbcar.waldbcar\my documents\my … [View More]

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boost::date_time + setting system clock
by ericd 22 Jul '03

22 Jul '03

afternoon all, I was wondering if it is possible to set the clock using date_time. I been looking but have found no clue that it is so. From what I have seen so far, this library does a lot of cool stuff, and why not this. I am working on a little personal project that uses an ORB. The idea is to have all clocks synchronized. I have one machine that queries an atomic time server. After having done so it will call each machine and synchronize them. I am currently running a mix of Linux, … [View More]

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problem building boost on solaris
by jerry_karlin 22 Jul '03

22 Jul '03

gcc-Link-action libs/test/build/bin/libboost_prg_exec_monitor.so/g cc/debug/runtime-link-static/shared-linkable-true/ threading-single/libboost_prg_exec_monitor.so ld: warning: option -d appears more than once, first setting taken ld: fatal: option -dn and -z[text|textwarn|textoff] are incompatible ld: fatal: option -dn and -G are incompatible ld: fatal: Flags processing errors collect2: ld returned 1 exit status What's causing this, and how do I fix it? I can't figure my way through these … [View More]

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Defect in intrusive_ptr.hpp
by Ilya Chvetsov(work) 22 Jul '03

22 Jul '03

Hi! It seems to me, that the following string should be inserted to intrusive_ptr.hpp <string> #include <boost/config.hpp> </string> Following code can not be compiled without this string under MSVC6SP5(with STLPort) <code> # if defined(BOOST_MSVC) && BOOST_WORKAROUND(BOOST_MSVC, <= 1200 && __SGI_STL_PORT) // MSVC6 has problems finding std::basic_ostream through the using declaration in namespace _STL using std::basic_ostream; template<… [View More]

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shared_ptr or weak_ptr in general
by Jason Winnebeck 22 Jul '03

22 Jul '03

I just wanted to follow up on my previous thread about my issues I've been discussing on the list with a general question. By default should I try to use shared_ptr or weak_ptr? I had always thought that shared_ptr should always be used except for rare cases where weak_ptr's semantics is either very desirable or needed. Now my pointers experience so far has been limited to explicit memory management (new/delete) and in Java with its references, where any reference keeps an object alive,… [View More]

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staticially linked STLport and Boost
by hh10k 20 Jul '03

20 Jul '03

I've compiled STLport for vc6, and can compile Boost with this: bjam "-sTOOLS=msvc-stlport" "-sBUILD=debug <stlport-iostream>on" So far so good, but when I try to compile a simple Boost.Python example (why I got Boost) I get a heap of link errors because Boost has linked with the DLL version of STLport, and I want it statically linked. I thought it's meant to default to static, but I can only guess that STLport is detecting otherwise. So, in order to force Boost to use the static … [View More]

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Unusal regex behavior.
by sdf sdf 20 Jul '03

20 Jul '03

Hellos everyone! Here is a good one. I am using regex and am having some weird returns. I can assign my results to a std:vector <std:string>. The vector[0] does contain the correct match, but vector[1] does not contain what is in a set of parentheses as it should. In fact I usually get a segment fault when I try to access it. I then found I can access results from the grep by using the boost::Regex.What(n). However What(0) returns the next available match in the string, and What(1) … [View More]

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