• allocated_pointers : foundation.c , foundation.h
• changed : simplify.c
• current_error : foundation.h , foundation.c
• default_priorities : symbolic4.c , symbolic4.h
• isolation_changed : solve.c
• keyword_identifiers : expression.c , expression.h
• keyword_strings : expression.c , expression.h
• smart_alloc_is_recording : foundation.c , foundation.h
• use_abbrevations : symbolic4.c , symbolic4.h
• use_spaces : symbolic4.c , symbolic4.h