September 2004 - Boost-users - lists.preview.boost.org

Boost.Build Main vs. exe
by Steven T. Hatton 10 Sep '04

10 Sep '04

There seem to be two different general approaches to using bjam. One is to use "objects" such as /Main/ and /Library/. This is described here: http://www.boost.org/tools/build/jam_src/Jamfile.html The other approach is to use "rules" such as /exe/ and /lib/. This is described here: http://www.boost.org/tools/build/v1/build_system.htm Am I correct in viewing these as separate approaches that I am free to choose between? Is one approach preferable to the other in terms of future compatability, or generally accepted practices? -- Regards, Steven

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High level question on iterator_adaptor vs iterator_facade
by Brian Braatz 10 Sep '04

10 Sep '04

I have worked through the tutorial on iterator_facade. (extremely cool library)- and I am reading about iterator_adapter- but what I am not seeing is the high level picture here. My Question: In a nutshell- what is the basic difference between iterator_adapter and iterator_facade? When would I use one over the other? Any thoughts appreciated thanks Brian

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Newbie Q
by Jon Handler 10 Sep '04

10 Sep '04

Hi, I'm failing to build either bjam or (eventually, I got the binary) the boost library. I'm using Win 2K, VC++ 6, boost 1.31.0. In setting environment variables, I set MSVC, but couldn't figure out VISUALC (since I don't have a VC++ directory). When I try to build, I get: D:\boost_1_31_0>bjam "-sTOOLS=msvc" install [ Fails to find PYTHON ] ...patience... ...found 7592 targets... ...updating 3079 targets... MkDir1 C:\Boost spawn: No such file or directory Thanks, Jon

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boost lib naming conventions on OSX (darwin)
by Simmons, Aaron 10 Sep '04

10 Sep '04

I have built and installed boost on Mac OSX (using the 'darwin' toolset). I've noticed that the libboost libraries that are built don't follow the boost naming conventions. Specifically, they don't include the 'osx' toolset identifier as specified in the 'Getting Started' documentation at http://boost.org/more/getting_started.html#Results Is this a known issue? Thanks, Aaron Simmons

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Building Boost on Mac OS X
by John Meinel 10 Sep '04

10 Sep '04

I've been trying to build boost-1_31_0 on Mac OSX (10.3.5). I first tried with the default compiler, and then I installed XCode 1.5 to get gcc build 1666, which seems to be what is listed on the main site. After all this, the problem I get is: c++ unrecognized option `-shared' As near as I can tell, it builds everything except for the shared libraries. I would really prefer to use the shared libraries, though if I can get my program to compile against the static it probably would be okay. Does anywone know of a workaround? I read something online that said "try using -G instead of -shared", but that just gave me -G as an unrecognized option. I'm trying to build CVS right now, but I don't know how stable/etc it is. I would much rather use a release, because if I download it later, I know it will still be the same code. Any pointers would be appreciated. John =:->

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RE: [Boost-users] Help with Path Constructor
by John Wilkinson 09 Sep '04

09 Sep '04

Is this a Unicode build? I'm assuming not, since you don't cast the result of GetBuffer, but your code will not work properly with Unicode. In any case, you don't need to use GetBuffer to get a pointer (const TCHAR *) to the buffer; just cast to LPCTSTR (which works for either Unicode or multibyte). It also might help to know what version of Visual Studio you're using. John -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of RYAN ROSARIO Sent: Wednesday, September 08, 2004 11:30 PM To: boost-users(a)lists.boost.org Subject: [Boost-users] Help with Path Constructor My MFC has a text box that stores the result from a "choose directory" dialog box. I encounter problems when I try to create a path object from the value of this textbox. The debugger shows the value of scanPath (what I call my path object) to be "" which is then causing hangs and exceptions... Below is the code I am trying to use. I do not see why the constructor will not recognize the parameter I am passing to it: //m_scanPath is a control variable for the textbox containing the directory. CString temp2; //Since the stuff in the textbox is a CString. m_scanPath.GetWindowText(temp2); //Get the directory entered in the textbox. const char * tempString = temp2.GetBuffer(); //Convert it to a const char *. fs::path scanPath(tempString); //This does not work even though the param is a const char *) What am I doing wrong? I imagine it is some type of type casting problem? Thanks in Advance, Ryan Do you Yahoo!? Express yourself with Y! Messenger! Free. Download now.

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autoconf m4 macro for boost
by Rodolfo Schulz de Lima 09 Sep '04

09 Sep '04

(answering the mail from Thomas Lemaire) I've attached to this mail the .m4 macros that I made to configure boost automatically in my autoconf/automake projects. It's not complete, nor optimal, but suit my needs. Put it in your /usr/share/aclocal directory and in your configure.ac put: RS_BOOST([1.32.0],[],[AC_MSG_ERROR([Package requires the Boost C++ libraries!])]) RS_BOOST_REGEX RS_BOOST_THREAD RS_BOOST_DATE_TIME RS_BOOST_PROGRAM_OPTIONS it'll create acsubst'ed BOOST_CPPFLAGS, BOOST_LIBS and BOOST_LIBS_R Since I use it to compile for ming32 (win32) and gcc (linux) targets, it's good to have AC_CANONICAL_TARGET right before AM_INIT_AUTOMAKE if you want the m4 to choose between mgw and gcc libraries according to the target you're building for. And if you define something like AC_ARG_ENABLE(debug,....), thus defining enable_debug variable, the m4 will select the debug/release libraries whether enable_debug is yes or no. Then you should put AM_CPPFLAGS=@BOOST_CPPFLAGS@, LIBS=@BOOST_LIBS@ (or @BOOST_LIBS_R@ if you want the recurrent (thread-safe) version of the libraries) somewhere in a Makefile.am That's it... I hope it'll be as useful to you as it is being to me. Regards, rod

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RE: [Boost-users] Help with Path Constructor
by John Wilkinson 09 Sep '04

09 Sep '04

Look in Project/<project name> Properties. In the resulting dialog, pick General under Configuration Properties. In the listbox on the right, look at "Character Set", which will tell you whether or not you are using Unicode. I think that Visual Studio defaults to Unicode builds these days, so you should really check this to make sure. A binary dump of the contents of temp2 after the GetWindowText call might be helpful (binary dump so that we can tell if it's Unicode or not). Try this block of code in place of your original: //m_scanPath is a control variable for the textbox containing the directory. CString temp2; //Since the stuff in the textbox is a CString. m_scanPath.GetWindowText(temp2); //Get the directory entered in the textbox. fs::path scanPath((LPCTSTR) temp2); //This does not work even though the param is a const char *) Let me know if it compiles, and what happens when you run it. John -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of RYAN ROSARIO Sent: Thursday, September 09, 2004 12:36 PM To: boost-users(a)lists.boost.org Subject: RE: [Boost-users] Help with Path Constructor I am using Visual Studio 2003. I don't think it is a Unicode build, but I am not totally sure. John Wilkinson <jwilkinson(a)tsystem.com> wrote: Is this a Unicode build? I'm assuming not, since you don't cast the result of GetBuffer, but your code will not work properly with Unicode. In any case, you don't need to use GetBuffer to get a pointer (const TCHAR *) to the buffer; just cast to LPCTSTR (which works for either Unicode or multibyte). It also might help to know what version of Visual Studio you're using. John -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of RYAN ROSARIO Sent: Wednesday, September 08, 2004 11:30 PM To: boost-users(a)lists.boost.org Subject: [Boost-users] Help with Path Constructor My MFC has a text box that stores the result from a "choose directory" dialog box. I encounter problems when I try to create a path object from the value of this textbox. The debugger shows the value of ! scanPath (what I call my path object) to be "" which is then causing hangs and exceptions... Below is the code I am trying to use. I do not see why the constructor will not recognize the parameter I am passing to it: //m_scanPath is a control variable for the textbox containing the directory. CString temp2; //Since the stuff in the textbox is a CString. m_scanPath.GetWindowText(temp2); //Get the directory entered in the textbox. const char * tempString = temp2.GetBuffer(); //Convert it to a const char *. fs::path scanPath(tempString); //This does not work even though the param is a const char *) What am I doing wrong? I imagine it is some type of type casting problem? Thanks in Advance, Ryan Do you Yahoo!? Express yourself with Y! Messenger! Free. Download now. _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages!

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Help with Path Constructor
by RYAN ROSARIO 09 Sep '04

09 Sep '04

My MFC has a text box that stores the result from a "choose directory" dialog box. I encounter problems when I try to create a path object from the value of this textbox. The debugger shows the value of scanPath (what I call my path object) to be "" which is then causing hangs and exceptions... Below is the code I am trying to use. I do not see why the constructor will not recognize the parameter I am passing to it: //m_scanPath is a control variable for the textbox containing the directory. CString temp2; //Since the stuff in the textbox is a CString. m_scanPath.GetWindowText(temp2); //Get the directory entered in the textbox. const char * tempString = temp2.GetBuffer(); //Convert it to a const char *. fs::path scanPath(tempString); //This does not work even though the param is a const char *) What am I doing wrong? I imagine it is some type of type casting problem? Thanks in Advance, Ryan --------------------------------- Do you Yahoo!? Express yourself with Y! Messenger! Free. Download now.

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boost installation
by Sekhara Pillai, Ramya Sobhana 09 Sep '04

09 Sep '04

I just started using the boost. For my project I need to install boost -1.30.2 But I am getting some issues in the installation. I will tell you the steps I did over here 1. run the build.bat in boost-jam-3.1.10 2.build vcvrs32.bat in ../vc7/bin 3. Change dir to the dir ../boost.1.30.2 4. Then did C:\NonProject\technical\DOC_NET\Boost\boost-1.30.2>bjam "-sTOOLS=vc7" install --------------------------------------------------------------------- skipping Boost.Python library build due to missing or incorrect configuration couldn't find Python.h in "/usr/include" You can configure the location of your python installation by setting: PYTHON_ROOT - currently "/usr" PYTHON_VERSION - The 2-part python Major.Minor version number (e.g. "2.2", NOT "2.2.1") - currently "2.2" The following are automatically configured from PYTHON_ROOT if not otherwise set: PYTHON_LIB_PATH - path to Python library object; currently "/usr/libs" --------------------------------------------------------------------- don't know how to make install ...found 1 target... ...can't find 1 target... Please help me for this

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