Fancy defines - Printable Version

Fancy defines - Printable Version

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+--- Thread: Fancy defines (/showthread.php?tid=457364)

Fancy defines - theYiin - 11.08.2013

what is wrong with this code and how to fix it?

Код:

#include <a_samp>

#define ha_%0::%1.%2(%3) (2*%3)
#define lol:%0) ha_%0)

main() {
    printf("%i", onConnect(42));
}

onConnect(lol:lol)
{
//  return (2*6);
    return ha_lol::ha.hi(6); // line 12
}

Код:

input(12) : error 1: expected token: ";", but found "::"
input(12) : error 29: invalid expression, assumed zero
input(12) : error 17: undefined symbol "ha"
input(12) : fatal error 107: too many error messages on one line
Error: The compiler failed. (no error code)

Re: Fancy defines - Misiur - 11.08.2013

Run pawncc with -l to find out. Those macros are broken though:

pawn Код:

main() {
    printf("%i", onConnect(42));
}

onConnect(ha_lol)
{

    return ha_lol::ha.hi(6); 
}

#e:
Ok, I've found the problem - and it's quite tricky (and I've learned cool things from this).

The code:

pawn Код:

#include <a_samp>

#define ha::%0::%1.%2(%3) (2*%3)
#define lol:%0) ha_%0)

main() {
    printf("%i", onConnect(42));
}

onConnect(lol:lol)
{
    return ha::lol::ha.hi(6); // line 12
}

http://forum.sa-mp.com/showthread.ph...175#post785175 In that tutorial you can find out how macros are built and stuff, but there is one little error - % is a valid character in macro definition, and you need invalid character to start 2 part of macro.

pawn Код:

#define ha_%0) bar_%0

won't work, because _ is legal character. You have to change _ to some illegal char, like : to make it work.

#e2:
My explanation isn't valid, but results are