Can #define preprocessor take parameters?

[aaronventure]

Setting

#define PRINT(a) Console.print(#a)

and then calling PRINT(hello) or PRINT("hello") returns "macro parameter amount mismatch". I feel like this is telling me that there's a parameter where it shouldn't be. Am I right?

Docs point to this page https://www.tutorialspoint.com/cprogramming/c_preprocessors.htm but otherwise don't provide examples on using #define in HISE.

I'm still getting the hang of HISEScript so please let me know if I missed something.

[aaronventure]

Alright,

#define DECLARE_REG(name) reg name
DECLARE_REG(test) = 5.767;

works as expected. No space between identifier and open parenthesis, got it.

---

This compiles in C and prints the value, with the variable test_heyhey properly formed from two tokens.

int main()
{
    #define DECLARE_REG(name) int name ## _heyhey
    DECLARE_REG(test) = 69;
    
    printf("%d", test_heyhey);

    return 0;
}

When I try this in HISE, I try

#define DECLARE_REG(name) reg name ## _heyhey
DECLARE_REG(test2) = 69.6969;

and get an error saying "Unexpected character '#' in source"

How to do #define token concatenation in HISEScript, then? @Christoph-Hart