无法在Ubuntu中编译简单的c++程序

Cannot compile simple c++ program in Ubuntu

本文关键字:简单 c++ 程序 编译 Ubuntu      更新时间:2023-10-16

我试图在终端中构建一个简单的程序。

#include <stdio.h>
#include <stdlib.h>
int main()
{
        printf("TESTING");
        return 1;
}

我运行了g++-o测试.cpp

错误:

/usr/include/features.h:323:26: error: bits/predefs.h: No such file or directory
/usr/include/features.h:356:25: error: sys/cdefs.h: No such file or directory
/usr/include/features.h:388:23: error: gnu/stubs.h: No such file or directory
In file included from test.cpp:2:
/usr/include/stdlib.h:42:29: error: bits/waitflags.h: No such file or directory
/usr/include/stdlib.h:43:30: error: bits/waitstatus.h: No such file or directory
/usr/include/stdlib.h:320:49: error: sys/types.h: No such file or directory
In file included from test.cpp:2:
/usr/include/stdlib.h:35: error: ‘__BEGIN_DECLS’ does not name a type
/usr/include/stdlib.h:102: error: expected constructor, destructor, or type conversion  before ‘;’ token
/usr/include/stdlib.h:113: error: ‘__END_NAMESPACE_STD’ does not name a type
/usr/include/stdlib.h:122: error: expected constructor, destructor, or type conversion before ‘;’ token
/usr/include/stdlib.h:140: error: expected constructor, destructor, or type conversion before ‘extern’
/usr/include/stdlib.h:145: error: expected constructor, destructor, or type conversion before ‘extern’
/usr/include/stdlib.h:149: error: expected initializer before ‘__THROW’
/usr/include/stdlib.h:152: error: expected initializer before ‘__THROW’
/usr/include/stdlib.h:153: error: ‘__END_NAMESPACE_STD’ does not name a type
/usr/include/stdlib.h:160: error: ‘__END_NAMESPACE_C99’ does not name a type
/usr/include/stdlib.h:168: error: ‘__END_NAMESPACE_STD’ does not name a type

列表以这种方式继续。我希望有人能指出我没有做些什么来使这件事成功。

您的代码适用于我的同一平台。

错误消息看起来像C错误。也许使用C++标头会有所帮助。

#include <cstdio>
#include <cstdlib>
int main(int argc, char *argv[]) {
  printf("TESTING");
  return 0;
}

你可能也有一些奇怪的别名。有时人们会错误地将gcc设置为g++的别名。

tom@flim:~$ set | grep g++
tom@flim:~$ alias grep
alias grep='grep --color=auto'
tom@flim:~$ alias g++
bash: alias: g++: not found
tom@flim:~$ which g++
/usr/bin/g++
tom@flim:~$ ll `which g++`
lrwxrwxrwx 1 root root 7 2011-08-14 02:17 /usr/bin/g++ -> g++-4.6*
tom@flim:~$ g++ --version
g++ (Ubuntu/Linaro 4.6.1-9ubuntu3) 4.6.1
Copyright (C) 2011 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

这就是我在ubuntu:中设置开发环境的方式

sudo apt-get install build-essential

这就建立了所有的标准C++库,而不需要知道细节。

我遇到了一个非常类似的问题。在我的情况下,问题是我有一些损坏的头文件,通过尝试查看它们来证明:

/usr/include/x86_64-linux-gnu/sys$ cat *  | grep "Input/outpu error"
cat: ioctl.h: Input/output error
cat: types.h: Input/output error

对我来说,解决方案是清除这些文件,然后重新安装它们。

sudo apt-get purge libc6-dev
sudo apt-get install libc6-dev

解决方案:由于之前的一些尝试,我的路径是空的。我创建了一个干净的路径使用:

export PATH= /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

编译后我的问题是程序不会显示任何结果。这是因为作为一个新的linux用户,我没有意识到我需要用调用一个程序。/在前面。这也可以通过调用在路径中设置

export PATH: $PATH:./