the "Note:" messages are normal and can be ignored. However to
generate a dictionary for the class test you've to use a LinkDef.h
file (this file can be omitted only when the class name is the
same as the .h file minus .h so, class test must be in file test.h).
For more on LinkDef.h see: http://root.cern.ch/root/RootCintMan.html.
Cheers, Fons.
Wei Xie wrote:
>
> Dear Rooters'
>
> The following code is used to generate a shared library. During the
> compilation, it gives some warning messages like:
>
> ** Note: operator new() masked 1c
> ** Note: operator delete() masked 1c
> ** Warning: Link requested for undefined class ooImp FILE: LINE:0
>
> and finally generate the library "oo.sl". But after I load it into root
> using gSystem.Load("oo.sl"), and type :
>
> -- .class test
>
> it shows:
>
> ** Error: class,struct,union or type test not defined FILE: LINE:0
>
> Could you tell me what's the problem ?
>
> Sincerely yours
>
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> name: ooImp.h
> ^^^^^^^^^^^^^^^
> #ifndef main_test
> #define main_test
>
> #include <TGFrame.h>
>
> class test: public TGFrame
> {
> private:
> TGFrame *frame;
> public:
> test(const TGWindow *p,UInt_t w, UInt_t h);
> ~test();
>
> ClassDef(test,1)
>
> };
>
> #endif
>
> ^^^^^^^^^^^^^^^^^^
> name: ooImp.c
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> #include "ooImp.h"
>
> ClassImp(test)
>
> test::test(const TGWindow *p,UInt_t w, UInt_t h):TGFrame(p,w,h)
> {
> frame = new TGFrame(gClient->GetRoot(),w,h);
> frame->MapWindow();
> }
>
> test::~test()
> {
> delete frame;
> }
>
> ^^^^^^^^^^^^^^^^^^
> Makefile
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> # HP-UX with CC
> CXX = CC
> CXXFLAGS = -w -g +a1 +Z -I$(ROOTSYS)/include
> LD = CC
> LDFLAGS = -w -g +a1 -b
> OBJS = ooImp.o ooDict.o
> SRCS = ooImp.c ooDict.C
> PROGRAMS = oo.sl
>
> all: $(PROGRAMS)
>
> $(PROGRAMS): $(OBJS)
> $(LD) $(LDFLAGS) $(OBJS) $(ROOTLIBS) -o $(PROGRAMS)
> chmod 555 $(PROGRAMS)
> @echo "$(PROGRAMS) is done"
>
> clean:
> rm -f $(OBJS) ooDict.*
>
> #.SUFFIXES: .c
>
> ###
>
> .c.o:
> $(CXX) $(CXXFLAGS) -c $<
> ###############
>
> ooImp.o: ooImp.h
> ooDict.C: ooImp.h
> @echo "generating dictionary ..."
> @rootcint ooDict.C -c ooImp.h
-- Org: CERN, European Laboratory for Particle Physics. Mail: 1211 Geneve 23, Switzerland Phone: +41 22 7679248 E-Mail: Fons.Rademakers@cern.ch Fax: +41 22 7677910