Question

我复制这个结构

typedef struct SDL_Surface {
Uint32 flags; /* Read-only */
SDL_PixelFormat *format; /* Read-only */
int w, h; /* Read-only */
Uint16 pitch; /* Read-only */
void *pixels; /* Read-write */
SDL_Rect clip_rect; /* Read-only */
8 int refcount; /* Read-mostly */
/* This structure also contains private fields not shown
here */} SDL_Surface;

并试图用/ *和* /以及代码的开头和结尾来评论（换行），但它不起作用。

/*
typedef struct SDL_Surface { //only commented out this line
Uint32 flags; /* Read-only */
SDL_PixelFormat *format; /* Read-only */ 
int w, h; /* Read-only */
Uint16 pitch; /* Read-only */
void *pixels; /* Read-write */
SDL_Rect clip_rect; /* Read-only */
8 int refcount; /* Read-mostly */
/* This structure also contains private fields not shown
here */} SDL_Surface;
*/

任何人都可以帮助我吗？

Answer 1

使用

#if 0
blah
#endif

“注释掉”那样的大块代码。它还具有嵌套的好处。

（/*和*/无效的原因是因为一旦在评论中，第一个 */将结束它，因此{{1 }}将在/* blah /* explanation */ more */之后结束，不是 explanation）

Answer 2

嵌套注释不起作用，但您可以让预处理器跳过结构

#if 0

    typedef struct SDL_Surface {
    Uint32 flags; /* Read-only */
    SDL_PixelFormat *format; /* Read-only */
    int w, h; /* Read-only */
    Uint16 pitch; /* Read-only */
    void *pixels; /* Read-write */
    SDL_Rect clip_rect; /* Read-only */
    8 int refcount; /* Read-mostly */
    /* This structure also contains private fields not shown
    here */} SDL_Surface;

#endif

包装/评论评论

2 个答案: