未解决的< iostream>在Eclipse中，Ubuntu [英] Unresolved <iostream> in Eclipse, Ubuntu

问题描述

是的，这是这个问题...

Yes, it's this question again...

不知何故，我无法解决这个问题。相信与否，我有Eclipse的经验，但只适用于Java开发。我已经用C ++编程，但没有使用Eclipse。

Somehow, I cannot get this issue resolved. Believe it or not, I have experience with Eclipse but only for Java development. I have programmed in C++ using vi but not with Eclipse.

我已经安装了：

• Ubuntu 12.04


• Eclipse 3.7.2


• GCC 4.6.3


• Eclipse CDT 8.0。 2

• Ubuntu 12.04
• Eclipse 3.7.2
• GCC 4.6.3
• Eclipse CDT 8.0.2

我创建了一个空的Makefile项目，并选择了Linux GNU工具链：

I created an empty Makefile project and selected the Linux GNU Toolchain:

我得到标准未解决的包含< iostream> 错误，我有一些参考项目中的各种include目录：

I get the standard Unresolved inclusion <iostream> error, and I have some references to various "include" directories in the project:

我注意到，虽然GNU C的路径和符号设置包含各种路径，但GNU C ++的相同设置为空：

I did notice that, while my "Paths and Symbols" setting for GNU C contains various paths, the same setting for GNU C++ is empty:

另外，我有GNU Elf解析器在我的C / C ++构建设置下：

Also, I have the "GNU Elf Parser" under my C/C++ build settings:

干杯

编辑：

以下是我项目的构建路径的更新照片：

Here's an updated photo of my a project's build path that is working correctly:

推荐答案

原因是Eclipse根本无法导入适当的标题。可以在Ubuntu中找到C ++ iostream头文件：

The reason is that Eclipse simply cannot import a proper header. C++ iostream header in Ubuntu can be found:

$：sudo find / -name iostream

$: sudo find / -name iostream

/home/beniamin/QtSDK/Madde/toolchains/arm-2009q3-67-arm-none-linux-gnueabi-x86_64-unknown-linux-gnu/arm-2009q3-67/arm-none-linux-gnueabi/include/c++/4.4.1/iostream
/home/beniamin/QtSDK/Madde/sysroots/harmattan_sysroot_10.2011.34-1_slim/usr/include/c++/4.4/iostream
/usr/share/gccxml-0.9/GCC/2.95/iostream
/usr/include/c++/4.6/iostream
/usr/include/boost/tr1/tr1/iostream

所以基本上，我想你正在寻找的是 / usr / include / c ++ / 4.6 / iostream ，所以你应该在某个地方包括这个目录。

So basically, I suppose the one you are looking for is /usr/include/c++/4.6/iostream, so you should in some place include this directory.

编辑：你也应该安装g ++，或者只是安装build-essential包，这是建立debian包的义务。不过，g ++应该已经包含在您的Ubuntu安装中。

You should also have installed g++, or simply install build-essential package, which is obligatory for building debian packages. Nevertheless, g++ should have been included in your Ubuntu installation anyway.

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