Macro expansion broken when arguments intersect parameters
"The C preprocessor chainsaw"
Brought to you by:
imkinghan
Menu
▾
▴
#80 Macro expansion broken when arguments intersect parameters
If a function-like macro is called with arguments some of which shadow formal parameters then the expansion can lose the shadowing argument and substitute another.
E.g. if FOO(T1,T2) is called with (T2,T3) then replacement of T1 with T2 at first yields FOO(T2,T2); then replacement of T2 with T3 yields FOO(T3,T3).
To fix this replaced segments must be noted and not replaced again.
Closed in v6.0