Problem with Map Iterator

["Sanjib Talukdar" <sanjibt@ascindia.com>]

Hi,

I am getting a segmentation fault error while executing the following
code:

	if (!this->colDtlsByName.empty())
	{
	     std::map< std::string, CS_DATAFMT*, 
	     std::less<std::string> >::iterator iterMap; 
	    for (iterMap = this->colDtlsByName.begin();
		iterMap != this->colDtlsByName.end(); ++iterMap)
	   {
	       CS_DATAFMT* obj = iterMap->second;
	       if (obj != NULL)
	             delete obj;
	       this->colDtlsByName.erase(iterMap);
	   }
	}

The backtrace from gdb is as follows:

	#0  0xff0e29b4 in std::_Rb_tree_increment () from
/usr/sfw/lib/libstdc++.so.6
	#1  0x0009854c in std::_Rb_tree_iterator<std::pair<std::string
const, _cs_datafmt*> >::operator++ (this=0xfe77a0c4) at stl_tree.h:180
	#2  0x0005a84c in MACDBQueryHandler::clearColInfo
(this=0xfe77bd30, inType=ALL)
	    at MACDBQueryHandler.C:123

The above code is in the method MACDBQueryHandler::clearColInfo() which
is being invoked in the class destructor.
We are using gcc version 3.4.3 on Solaris 10. The library libstdc++.so.6
is pointing to libstdc++.so.6.0.3.

Can anyone please point out the reason for the error?
Thank You.
Sanjib.