Eclipse Kepler CDT“无法解析符号NULL”
[英]Eclipse Kepler CDT “Symbol NULL could not be resolved”
问题描述
To write C code, I use Eclipse keppler CDT (Service Release 1, Build id: 20130919-0819) on my Mac OS X 10.8.5 system. 
要编写C代码，我在Mac OS X 10.8.5系统上使用Eclipse keppler CDT（服务版本1，版本ID：20130919-0819）。
Recently, I imported a complete C framework and added all the necessary include directories to the 'Includes' tab (context menu project - properties - C/C++ General - Paths and Symbols - 'Includes' tab). 最近，我导入了一个完整的C框架，并将所有必需的包含目录添加到“包含”选项卡（上下文菜单项目-属性-C / C ++常规-路径和符号-“包含”选项卡）。
NULL is defined in the 'stddef.h' file and can be found in one of my include directories, namely '/opt/local/lib/apple-gcc42/gcc/i686-apple-darwin12/4.2.1/include/stddef.h'. NULL在'stddef.h'文件中定义，可以在我的包含目录之一中找到，即'/opt/local/lib/apple-gcc42/gcc/i686-apple-darwin12/4.2.1/include/stddef 。H'。
The programs in the framework build and run successful. 框架中的程序可以成功构建并运行。 I rebuilt the index after adding the include directories, but eclipse still underlines all the NULL references and shows the “Symbol NULL could not be resolved” error. 添加包含目录后，我重新构建了索引，但是eclipse仍然强调所有NULL引用并显示“无法解析符号NULL”错误。 This is annoying when searching for other errors. 搜索其他错误时很烦人。
Can somebody help me? 有人可以帮我吗？
Thank you in advance! 先感谢您！
1 个解决方案
解决方案1
1 2013-12-24 08:03:36
将此头文件添加到C代码“ stddef.h”中
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