--- Peter Dimov <pdimov@mmltd.net> wrote:
yinglcs2@yahoo.com wrote:
int count = count_if (bdl.begin(), bdl.end(), bind( &BlockData::isContainer, _1) );
This looks like it should work, assuming
bool BlockData::isContainer() const;
But this code does not copmile,I get this error: g++ -O0 -g3 -Wall -c -fmessage-length=0 -oBlockDataUtils.o ../BlockDataUtils.cpp ../BlockDataUtils.cpp: In function �?~bool hasContainerBlock(BlockDataList&)�?T: ../BlockDataUtils.cpp:95: error: no matching function for call to �?~bind(<unknown type>, const
boost::lambda::lambda_functor<boost::lambda::placeholder<1>
&)�?T
Since you are using the _1 placeholder from the Lambda library, you need to use boost::lambda::bind as well. Currently boost::bind and Lambda do not recognize each other's placeholders (and don't interoperate in general).
I can't add this to my code: using namespace boost::lambda::bind; It said : g++ -O0 -g3 -Wall -c -fmessage-length=0 -oBlockDataUtils.o ../BlockDataUtils.cpp ../BlockDataUtils.cpp:15: error: expected namespace-name before â;â token ../BlockDataUtils.cpp:15: error: â<type error>â is not a namespace And I still can't get my code to compile: code: int count = count_if (bdl.begin(), bdl.end(), bind( &BlockData::isContainer, _1)); error: g++ -O0 -g3 -Wall -c -fmessage-length=0 -oBlockDataUtils.o ../BlockDataUtils.cpp ../BlockDataUtils.cpp: In function âbool hasContainerBlock(BlockDataList&)â: ../BlockDataUtils.cpp:95: error: no matching function for call to âbind(<unknown type>, const boost::lambda::lambda_functor<boost::lambda::placeholder<1>
&)â make: *** [BlockDataUtils.o] Error 1
Any help is appreicate.
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