#define W_FUNCT(retType, functName) \
retType functName() {return 123; } \
retType _##functName() {return 456;} \#define W_FUNCT(retType, functName, ...) \
retType functName(__VA_ARGS__) {return __##functName(); } \
retType __##functName() { return 456; } \
retType _##functName();class Class2;
class Class1 : public BaseClass
.......#include "class1.h"
#include "class2.h"
.....#include "class3.h"
class Class2
.....#include "class2.h"
......#include "class1.h"
class Class2;
class Class3 : public Class1
.....#include "class3.h"
#include "class2.h" SET @var1:="0"
SELECT @var1:=CONCAT(@var1, ",", lot_id) ....select @var1 и готовчинко