我在使用Eclipse的C ++解析器时遇到了一些问题。我一直在使用它与Emscripten，并发现代码完成，调用层次结构，文档弹出窗口，代码分析和相关功能非常有用，但它一直困扰我解析器不完全工作。特别是使用矢量这个新问题。
第一个解析错误在std::vector<SDL_Rect> box;上，错误为：
无法解析符号'vector'
然后在emscripten_set_main_loop(game_loop, 60, 1);我收到此错误：
无法解析功能'usleep'
这是完整的代码：
#include <stdio.h>
#include <stdlib.h>
#include <SDL/SDL.h>
#include <SDL/SDL_image.h>
#include <emscripten.h>
#include <stdarg.h>
#include <libcxx/vector>
///GLOBAL VARIABLES
SDL_Surface* bitmap;
SDL_Surface* screen;
SDL_Rect source;
SDL_Rect destination;
///second sprite
SDL_Surface* bitmap2;
SDL_Rect source2;
SDL_Rect destination2;
/// Side Scrolling variables:
SDL_Rect camera;
SDL_Rect offset;
SDL_Rect offset2;
int level_width = 480 * 5;
int level_height = 640;
bool gameRunning = true;
class buttonpresses {
public:
bool leftButton;
bool rightButton;
bool jumpButton;
};
int movementspeed = 5;
int jumpspeed = 2;
bool jumpenabled = false;
int jumpduration = 0;
int maxjump = 20;
int leftmomentum = 1;
int rightmomentum = 1;
int lastdestination;
int countDestination = 0;
int maxmomentum = 5;
buttonpresses charactermovement;
/// Collision detection
std::vector<SDL_Rect> box;
///MAIN LOOP
void game_loop() {
// EVENT HANDLING
SDL_PumpEvents();
Uint8 *keystate = SDL_GetKeyboardState(NULL);
if (keystate[SDLK_ESCAPE]) {
gameRunning = false;
printf("Game Stopping!!!!!!\n");
SDL_Quit();
exit(0);
}
if (keystate[SDLK_LEFT]) {
// printf("Left Key\n");
charactermovement.leftButton = true;
}
if (keystate[SDLK_LEFT] == false) {
charactermovement.leftButton = false;
}
if (keystate[SDLK_RIGHT]) {
// printf("Right Key\n");
charactermovement.rightButton = true;
}
if (keystate[SDLK_RIGHT] == false) {
charactermovement.rightButton = false;
}
if (keystate[SDLK_SPACE]) {
// printf("Space Key\n");
charactermovement.jumpButton = true;
}
if (keystate[SDLK_SPACE] == false) {
charactermovement.jumpButton = false;
}
// printf("Game Running..\n");
// LOGIC
//character movement
if (charactermovement.rightButton) {
destination.x = destination.x + movementspeed;
}
if (charactermovement.leftButton) {
destination.x = destination.x - movementspeed;
}
if (charactermovement.jumpButton && jumpenabled) {
destination.y = destination.y - jumpspeed;
jumpduration++;
}
destination.x = destination.x + rightmomentum - leftmomentum;
if (destination.y >= 200) {
jumpenabled = true;
// printf ("jump enabled\n");
}
if (jumpduration >= maxjump) {
jumpenabled = false;
}
if (destination.y >= 200) {
// printf ("destination y:");
// printf ("%d\n", destination.y);
jumpduration = 0;
}
//if (jumpenabled != true){
// printf ("jump disabled\n");
//}
//if (jumpenabled == true){
// printf ("jump enabled\n");
// printf ("jump duration: ");
// printf ("%d\n", jumpduration);
//}
//momentum
//save position every 5 interations
if (countDestination > 5) {
lastdestination = destination.x;
countDestination = 0;
} else {
countDestination++;
}
//printf ("last location: ");
//printf ("%d\n", destination.x);
//
//printf ("current location: ");
//printf ("%d\n", lastdestination);
// increase momentum in direction your moving in (relative to previous location)
if (lastdestination > destination.x) {
// printf ("right if running \n ");
if (rightmomentum > 0) {
rightmomentum--;
} else if (leftmomentum < maxmomentum) {
leftmomentum++;
}
}
if (lastdestination < destination.x) {
// printf ("left if running \n ");
if (leftmomentum > 0) {
leftmomentum--;
} else if (rightmomentum < maxmomentum) {
rightmomentum++;
}
}
if (lastdestination == destination.x) {
if (leftmomentum > 0) {
leftmomentum--;
}
if (rightmomentum > 0) {
rightmomentum--;
}
}
printf("left momentum: ");
printf("%d\n", rightmomentum);
printf("right momentum: ");
printf("%d\n", leftmomentum);
//gravity
if (destination.y <= 200) {
destination.y++;
}
offset.x = destination.x - camera.x;
offset2.x = destination2.x - camera.x;
offset.y = destination.y - camera.y;
offset2.y = destination2.y - camera.y;
// RENDERING
SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0));
SDL_BlitSurface(bitmap, &source, screen, &offset);
// RENDER SECOND SPRITE
SDL_BlitSurface(bitmap2, &source2, screen, &offset2);
//blank screen
SDL_Flip(screen);
camera.x++;
}
int main() {
SDL_Init( SDL_INIT_VIDEO);
// LOAD FILES
bitmap = IMG_Load("ninjagaiden3sheet1.png");
screen = SDL_SetVideoMode(640, 480, 0, SDL_HWSURFACE | SDL_DOUBLEBUF);
/// camera variables
camera.x = 0;
camera.y = 0;
camera.w = 640;
camera.h = 480;
/// end camera variables
// Part of the bitmap that we want to draw
source.x = 37;
source.y = 4;
source.w = 17;
source.h = 32;
// Part of the screen we want to draw the sprite to
destination.x = 100;
destination.y = 100;
destination.w = 65;
destination.h = 44;
//// second sprite
bitmap2 = IMG_Load("bat_transparent.png");
source2.x = 24;
source2.y = 63;
source2.w = 65;
source2.h = 44;
destination2.x = 940;
destination2.y = 100;
destination2.w = 65;
destination2.h = 44;
//// end second sprite
lastdestination = destination.x;
offset = destination;
offset2 = destination2;
charactermovement.leftButton = false;
charactermovement.rightButton = false;
charactermovement.jumpButton = false;
//START MAIN LOOP
emscripten_set_main_loop(game_loop, 60, 1);
return 0;
}
“路径和符号”属性中的C ++包含选项卡如下所示：
C:\Program Files\Emscripten\emscripten\1.12.0\system\include
C:\Program Files\Emscripten\emscripten\1.12.0\system\include\libc
C:\Program Files\Emscripten\emscripten\1.12.0\system\include\emscripten
C:\Program Files\Emscripten\emscripten\1.12.0\system\include\libcxx
在Indexer设置中，我启用了以下功能：
- 未包含在构建
中的索引源文件- 索引未使用的标题
- 索引所有标题变体
- 在编辑器中打开的索引源文件和头文件
- 允许启发式解析包含
- 跳过大于8 MB的文件
有谁知道发生了什么事？或者我可以做些什么来解决它？
我修复了解析std::vector时的错误。事实证明，某些llvm / clang库使用_LIBCPP_BEGIN_NAMESPACE_STD和_LIBCPP_END_NAMESPACE_STD定义而不是using namespace std;，除非定义了__clang__，否则这些定义对解析器是不可见的。
因此，解决方案是在“路径和符号”属性中进入C ++的“符号”选项卡并添加：
__clang__
在弹出的“添加”对话框中，只需将其放入Name:输入字段，然后按确定。这也将添加许多缺少的标准命名空间函数，如cout cin等。
我还没有找到针对usleep / emscripten_set_main_loop问题的修复程序，但这应该足以让IDE的代码完成并且可以使用几个相关的功能。虽然我仍然在使用Eclipse时遇到一些奇怪的复杂解析器问题，所以我想我将放弃在此处搜索解决方案并使用NetBeans进行I think I have every thing set up。