std::string append problem

[rsennat]

Hi,
I have a strange problem with strings concatenation. I have a xmlobj, which contains request, response, status, notification and control which are all of type std::string.

When I dump that, it prints every member variable properly. But when I concatenate as below, "response" string alone is not appended. though the data is there.

Please help me to fix this problem
Thanks
rsennat

    xmlobj.XmlDump();
    string xmlMessage;
    xmlMessage.reserve(300);

    xmlMessage = "<tagmessage>";

    xmlMessage += "<tagrequest>";
    xmlMessage += xmlobj.GetRequest();
    xmlMessage += "</tagrequest>";

    xmlMessage += "<tagstatus>";
    xmlMessage += xmlobj.GetStatus();
    xmlMessage += "</tagstatus>";

    xmlMessage += "<tagnotification>";
    xmlMessage += xmlobj.GetNotifMsg();
    xmlMessage += "</tagnotification>";

    xmlMessage += "<tagcontrol>";
    xmlMessage += xmlobj.GetCtrlMsg();
    xmlMessage += "</tagcontrol>";

    xmlMessage += "<tagresponse>";
    xmlMessage += xmlobj.GetResponseMsg(); [B]--> not appended here[/B]
    cout << "IN XML ENCODE: " << xmlobj.GetResponseMsg().c_str() << endl;  [B]--> this prints the data properly[/B]
    xmlMessage += "</tagresponse>";

    xmlMessage += "</tagmessage>";

    printf("XML message is:: %s\n", xmlMessage.c_str());

[rsennat]

It got fixed when I used it as,
xmlMessage.appe nd(xmlobj.GetRe sponseMsg().c_s tr());
instead of
xmlMessage.appe nd(xmlobj.GetRe sponseMsg());

How there could be a different behaviour when using a "string" or a "const char*" for the string api's.

thanks
rsennat

Hi,
I have a strange problem with strings concatenation. I have a xmlobj, which contains request, response, status, notification and control which are all of type std::string.

When I dump that, it prints every member variable properly. But when I concatenate as below, "response" string alone is not appended. though the data is there.

Please help me to fix this problem
Thanks
rsennat

    xmlobj.XmlDump();
    string xmlMessage;
    xmlMessage.reserve(300);

    xmlMessage = "<tagmessage>";

    xmlMessage += "<tagrequest>";
    xmlMessage += xmlobj.GetRequest();
    xmlMessage += "</tagrequest>";

    xmlMessage += "<tagstatus>";
    xmlMessage += xmlobj.GetStatus();
    xmlMessage += "</tagstatus>";

    xmlMessage += "<tagnotification>";
    xmlMessage += xmlobj.GetNotifMsg();
    xmlMessage += "</tagnotification>";

    xmlMessage += "<tagcontrol>";
    xmlMessage += xmlobj.GetCtrlMsg();
    xmlMessage += "</tagcontrol>";

    xmlMessage += "<tagresponse>";
    xmlMessage += xmlobj.GetResponseMsg(); [B]--> not appended here[/B]
    cout << "IN XML ENCODE: " << xmlobj.GetResponseMsg().c_str() << endl;  [B]--> this prints the data properly[/B]
    xmlMessage += "</tagresponse>";

    xmlMessage += "</tagmessage>";

    printf("XML message is:: %s\n", xmlMessage.c_str());

[weaknessforcats]

xmlMessage += xmlobj.GetRespo nseMsg(); --> not appended here
cout << "IN XML ENCODE: " << xmlobj.GetRespo nseMsg().c_str( ) << endl; --> this prints the data properly

So are you saying that:
[code=cpp]
xmlMessage += xmlobj.GetRespo nseMsg(); --> not appended here
cout << "IN XML ENCODE: " << xmlobj.GetRespo nseMsg() << endl;
[/code]

does not print the data correctly???