Hi everyone. I'm trying to get my code to automatically print out string literals called MESSAGE1, MESSAGE2, etc. However, the compiler tells me that it cannot find MESSAGEi. This isn't what I want, obviously. How do I do it properly?
Richard
]Code:#define MESSAGE(i) MESSAGE##i #define MESSAGELINES 2 #define MESSAGE1 "First string" #define MESSAGE2 "Second string" int i ; for ( i = 0 ; i < MESSAGELINES ; i++ ) printf ( "%s" , MESSAGE(i) ); return 0;
Token concatenation occurs at preprocessing time. However, you're trying to make up the name by accessing the value of the variable `i', which is unavailable to the preprocessor as it can be only known at runtime.
Stick close to your desks and never program a thing,
And you all may sit in the standards commitee!
It wouldn't work anyway, because you start i at 0, so you'd be trying to make MESSAGE0 and MESSAGE1, not MESSAGE1 and MESSAGE2.
Quzah.
Hope is the first step on the road to disappointment.
