无法包括的iostream android系统中，为什么？ [英] Unable to include iostream in android why?

问题描述

已经安装的Andr​​oid NDK-R7，并试图编译.cpp文件。

Have installed android-ndk-r7, and trying to compile .cpp file.

#include <iostream>

using namespace std;

int main ( int argc, char ** argv)
{

     cout <<"Hello World.."<<endl;

} 

已执行以下命令： 坐进JNI的文件夹，并执行

Executed following command: Got into jni folder, and executed

#ndk-build

得到了以下错误：

Got following error:

/home/jelari/Desktop/androidDevelopment/android-ndk-r7/DCF/jni/test1.cpp:1:20: error: iostream: No such file or directory
/home/jelari/Desktop/androidDevelopment/android-ndk-r7/DCF/jni/test1.cpp: In function 'int main(int, char**)':
/home/jelari/Desktop/androidDevelopment/android-ndk-r7/DCF/jni/test1.cpp:8: error: 'cout' was not declared in this scope
/home/jelari/Desktop/androidDevelopment/android-ndk-r7/DCF/jni/test1.cpp:8: error: 'endl' was not declared in this scope
make: *** [/home/jelari/Desktop/androidDevelopment/android-ndk-r7/DCF/obj/local/armeabi/objs/test1/test1.o] Error 1

我究竟做错了什么？

What am i doing wrong ?

我的Andr​​oid.mk文件是这样的：

My Android.mk file looks like:

# A simple test for the minimal standard C++ library
#

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)
LOCAL_MODULE := test1
LOCAL_SRC_FILES := test1.cpp
include $(BUILD_EXECUTABLE)

和Application.mk文件是这样的：

and Application.mk file looks like:

# Build both ARMv5TE and ARMv7-A machine code.
APP_ABI := armeabi armeabi-v7a

请指出错误了吗？

Kindly point out the mistake?

推荐答案

正是这样的答案是容易接近这里所以，在这里，它是：

Just so the answer is readily accessible here on SO, here it is:

默认情况下，C ++标准库是很小的。

By default, the C++ standard library is very minimal.

您需要在您的Application.mk文件中设置APP_STL。

You need to set APP_STL in your Application.mk file.

我使用的：

APP_STL：= gnustl_static

APP_STL := gnustl_static

但你也可以使用系统，stlport_static，stlport_shared，或   gnustl_static。

but you could have used system, stlport_static, stlport_shared, or gnustl_static.

它在$ NDK /文档/ CPLUSPLUS-SUPPORT.html记录，这是一个   小隐，因为$ NDK / documentation.html获得索引文件不   列出来。

It's documented under $NDK/docs/CPLUSPLUS-SUPPORT.html, and it's a little hidden, because the $NDK/documentation.html index file doesn't list it.

从<一个报价href="http://groups.google.com/group/android-ndk/browse_thread/thread/983c436239d48704?pli=1">http://groups.google.com/group/android-ndk/browse_thread/thread/983c436239d48704?pli=1

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