C++宏代码取代

Question

1） - 我有两个枚举

enum FixedScriptingEvent { 
    FIXED_SCRIPTING_EVENT_NOTOUCH, 
    FIXED_SCRIPTING_EVENT_OVER_MOVED, 
    FIXED_SCRIPTING_EVENT_OVER_RELEASED,  
    FIXED_SCRIPTING_EVENT_OUTSIDE_RELEASED, 
    FIXED_SCRIPTING_EVENT_OUTSIDE_MOVED,  
... 

enum InputState { 

    INPUT_STATE_NOTOUCH, 
    INPUT_STATE_OVER_MOVED, 
    INPUT_STATE_OVER_RELEASED, 
    INPUT_STATE_OUTSIDE_RELEASED, 
    INPUT_STATE_OUTSIDE_MOVED, 
    INPUT_STATE_OUTSIDE_PRESSED, 
... 

2）我有这两个宏之间的关联以及需要调用该代码对于每个

if (inputMonitor.state.current == INPUT_STATE_NOTOUCH) { 
    executeScriptsForEvent(FIXED_SCRIPTING_EVENT_INPUT_STATE_CHANGED_TO_NOTOUCH); 
} 
if (inputMonitor.state.current == INPUT_STATE_MOVED) { 
    executeScriptsForEvent(FIXED_SCRIPTING_EVENT_INPUT_STATE_CHANGED_TO_MOVED); 
} 

3），所以我由该宏

#define EXECUTEFIXEDSCRIPTEVENTFORSTATE(x, y) if (inputMonitor.state.current == x) {executeScriptsForEvent(y);} 

    EXECUTEFIXEDSCRIPTEVENTFORSTATE(INPUT_STATE_NOTOUCH, FIXED_SCRIPTING_EVENT_INPUT_STATE_CHANGED_TO_NOTOUCH); 
    EXECUTEFIXEDSCRIPTEVENTFORSTATE(INPUT_STATE_OVER_MOVED, FIXED_SCRIPTING_EVENT_INPUT_STATE_CHANGED_TO_OVER_MOVED); 
    EXECUTEFIXEDSCRIPTEVENTFORSTATE(INPUT_STATE_OVER_RELEASED, FIXED_SCRIPTING_EVENT_INPUT_STATE_CHANGED_TO_OVER_RELEASED); 

    #undef EXECUTEFIXEDSCRIPTEVENTFORSTATE(x, y) 

其是精细

4）的问题，我该怎么办水木清华这样

#define EXECUTEFIXEDSCRIPTEVENTFORSTATE(x)\ 
if (inputMonitor.state.current == INPUT_STATE_(x)) {\ 
executeScriptsForEvent(FIXED_SCRIPTING_EVENT_INPUT_STATE_CHANGED_TO_(x)); 
}\ 

，所以我只需要

EXECUTEFIXEDSCRIPTEVENTFORSTATE(NOTOUCH); 

这应该是等同于我目前的：

EXECUTEFIXEDSCRIPTEVENTFORSTATE(INPUT_STATE_NOTOUCH, FIXED_SCRIPTING_EVENT_INPUT_STATE_CHANGED_TO_NOTOUCH); 

但编译器指出NOTOUCH没有定义，所以我不能从宏4

Answer 1

令牌串联？

#define EXECUTEFIXEDSCRIPTEVENTFORSTATE(x)\ 
if (inputMonitor.state.current == INPUT_STATE_ ## x) {\ 
executeScriptsForEvent(FIXED_SCRIPTING_EVENT_INPUT_STATE_CHANGED_TO_ ## x);\ 
}