Using macros with operator symbols

[jgannon]

For reasons that make sense to my application, I want to have a macro defined that will change "FOO=x;" to "BAR+=x;". To do "FOO=x; BAR+=FOO;" would be horribly unwieldy, and would not work in this application. I have tried "#define FOO BAR+", but I get a syntax error on the "FOO=x;" line. I have also tried "#define FOO= BAR+=", but the equals sign is an invalid character in macro names. Is there some way to make this work my way, or am I going to have to do some other dirty work-around?