Manipulating character strings in C++

Character data is often returned in ImqString class objects which can be cast to char * using a conversion operator. The ImqString class contains methods to assist in the processing of character strings.

When character data is accepted or returned using MQI C++ methods, the character data is always null-terminated and can be of any length. However, certain limits are imposed by IBM® MQ that might result in information being truncated. To ease storage management, character data is often returned in ImqString class objects. These objects can be cast to char * using the conversion operator provided, and used for read-only purposes in many situations where a char * is required.

Although C functions can be used on the char *, there are special methods of the ImqString class that are preferable; operator length ( ) is the equivalent of strlen and storage ( ) indicates the memory allocated for the character data.