Greetings,

I have encountered the following problem: when using the map class from stlport (and these seem to be functions defined in stl\_tree.h), when building from the IDDE, I get the following errors on linking:

Error: D:\MYPROJECTS\TEST\Main.OBJ(Main)  (1293653086): Symbol Undefined
?_M_increment@?$_Rb_global@_N@@SAPAU_Rb_tree_node_base@@PAU2@@Z
Error: D:\MYPROJECTS\TEST\Main.OBJ(Main)  (1293653086): Symbol Undefined
?_M_decrement@?$_Rb_global@_N@@SAPAU_Rb_tree_node_base@@PAU2@@Z
Error: D:\MYPROJECTS\TEST\Main.OBJ(Main)  (1293653086): Symbol Undefined
?_Rebalance@?$_Rb_global@_N@@SAXPAU_Rb_tree_node_base@@AAPAU2@@Z

The same file builds successfully from the command line, even without specifying
the stlport static lib (this seems to be required only when using streams).
It also builds successfully if I include the dynamic version of the library
instead of the static one in the IDDE.
Any ideas?

Thanks,
Dimitri

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On Thu, 12 Sep 2002 21:24:51 +0000 (UTC), Dimitri Kaparis wrote:
> I have encountered the following problem: when using the map class from stlport (and these seem to be functions defined in stl\_tree.h), when building from the IDDE, I get the following errors on linking:
> 
> Error: D:\MYPROJECTS\TEST\Main.OBJ(Main)  (1293653086): Symbol Undefined
> ?_M_increment@?$_Rb_global@_N@@SAPAU_Rb_tree_node_base@@PAU2@@Z
> Error: D:\MYPROJECTS\TEST\Main.OBJ(Main)  (1293653086): Symbol Undefined
> ?_M_decrement@?$_Rb_global@_N@@SAPAU_Rb_tree_node_base@@PAU2@@Z
> Error: D:\MYPROJECTS\TEST\Main.OBJ(Main)  (1293653086): Symbol Undefined
> ?_Rebalance@?$_Rb_global@_N@@SAXPAU_Rb_tree_node_base@@AAPAU2@@Z
> 
> The same file builds successfully from the command line, even without specifying the stlport static lib (this seems to be required only when using streams).

I guess you are compiling with -D_STLP_NO_NEW_IOSTREAMS from the command line (but not from the IDDE).

The reason it doesn't work without _STLP_NO_NEW_IOSTREAMS is that DM doesn't support explicit template instantiation and therefore some template instantiations are currently missing from the STLport libraries (but when compiling with _STLP_NO_NEW_IOSTREAMS these STLport libraries aren't needed).


bye, Christof

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In article <alsa0g$12mc$1@digitaldaemon.com>, Christof Meerwald says...
>
>On Thu, 12 Sep 2002 21:24:51 +0000 (UTC), Dimitri Kaparis wrote:
>> I have encountered the following problem: when using the map class from stlport (and these seem to be functions defined in stl\_tree.h), when building from the IDDE, I get the following errors on linking:
>> 
>> Error: D:\MYPROJECTS\TEST\Main.OBJ(Main)  (1293653086): Symbol Undefined
>> ?_M_increment@?$_Rb_global@_N@@SAPAU_Rb_tree_node_base@@PAU2@@Z
>> Error: D:\MYPROJECTS\TEST\Main.OBJ(Main)  (1293653086): Symbol Undefined
>> ?_M_decrement@?$_Rb_global@_N@@SAPAU_Rb_tree_node_base@@PAU2@@Z
>> Error: D:\MYPROJECTS\TEST\Main.OBJ(Main)  (1293653086): Symbol Undefined
>> ?_Rebalance@?$_Rb_global@_N@@SAXPAU_Rb_tree_node_base@@AAPAU2@@Z
>> 
>> The same file builds successfully from the command line, even without specifying the stlport static lib (this seems to be required only when using streams).
>
>I guess you are compiling with -D_STLP_NO_NEW_IOSTREAMS from the command line (but not from the IDDE).

Actually I build from the command line without specifying any additional
parameters, like: sc test.cpp
It does not seem this defines _STLP_NO_NEW_IOSTREAMS because if I try it with a
file that uses streams and I don't specify the stlport lib, I still get a bunch
of unresolved symbols at linking. I can use map, however without any problems -
not so from the IDDE.

Now I have tried defining _STLP_NO_NEW_IOSTREAMS in the project settings in IDDE
and this indeed solves the problem with map and also I can use iostreams without
linking with the stlport lib.
However this also doesn't explain why I don't get these errors when linking with
the dynamic library?

Thanks,
Dimitri