SOAP

web services - A Good C++ Library for SOAP - Stack Overflow
Пишем SOAP-клиент на C++, используя gSOAP / Хабрахабр
Tools and Source Code for SOAP
Simple SOAP C++ Library | Free Development software downloads at SourceForge.net
Make a SOAP client with C/C++ and gSOAP
EasySoap++
SOAP Client Using Visual C++
SOAP client for C++ - CodeProject
Generic WebService (SOAP) client library for C++ - Stack Overflow

Mixing Objective-C and C++ - Stack Overflow
How can I use C++ with Objective-C in XCode - Stack Overflow
Writing a C++ Wrapper around Objective-C? - Stack Overflow
How to use c++ and objective-c together in XCode 4.2 - Stack Overflow