XmStringConcatAndFree man page
XmStringConcatAndFree — A compound string function that appends one string to another and frees the original strings
#include <Xm/Xm.h> XmString XmStringConcatAndFree( XmString s1, XmString s2);
XmStringConcatAndFree copies s2 to the end of s1 and returns a copy of the resulting compound string. The original strings are freed. The function will allocate space to hold the returned compound string. The application is responsible for managing the allocated space. The application can recover the allocated space by calling XmStringFree.
Specifies the compound string to which a copy of s2 is appended
Specifies the compound string that is appended to the end of s1
The XmStringConcatAndFree function works like the XmStringConcat function, except that it frees the s1 and s2 strings, and is therefore more efficient. You should use XmStringConcatAndFree instead of XmStringConcat if you want s1 and s2 to be freed afterwards.
Returns a new compound string.
XmStringConcat(3), XmStringCreate(3), and XmStringFree(3).