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name Punditsdkoslkdosdkoskdo

Android ndk-build iostream: No such file or directory

I'm having problem with compiling cpp file using ndk-build tool (windows 7 with cygwin) Error appears when I try to compile cpp file with #include:

jni/native.cpp:5:20: error: iostream: No such file or directory

Here is my cpp file:

#include <jni.h>
#include <string.h>
#include <stdio.h>
#include <android/log.h>
#include <iostream>

#define DEBUG_TAG "NDK_SampleActivity"
#define  LOG_TAG    "hellojni"
#define  LOGI(...)  __android_log_print(ANDROID_LOG_INFO,LOG_TAG,__VA_ARGS__)
#define  LOGE(...)  __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__)


#ifdef __cplusplus
extern "C" {
#endif

void Java_com_test_ndk_SampleActivity_helloLog(JNIEnv* env, jobject thisobj, jstring logThis)
{
    jboolean isCopy;

    const char * szLogThis = env->GetStringUTFChars(logThis, &isCopy);

    __android_log_print(ANDROID_LOG_DEBUG, DEBUG_TAG, "NDK:LC: [%s]", szLogThis);

    env->ReleaseStringUTFChars(logThis, szLogThis);
}



#ifdef __cplusplus
}
#endif

And here is my Android.mk file:

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

APP_STL:=stlport_static 

LOCAL_LDLIBS := -llog

LOCAL_MODULE    := swingbyte-android

LOCAL_SRC_FILES := native.cpp

LOCAL_C_INCLUDES := $(LOCAL_PATH)/include-all
include $(BUILD_SHARED_LIBRARY)

I have iostream file in android ndk folder (NDK_ROOT\sources\cxx-stl\gnu-libstdc++\include) but I don't have any idea how to tell compiler to look for iotream (and other standart header files) in that folder.

It seems to that I'm missing one or few environment variables, or some comiler flags.

I think "APP_STL:=stlport_static" must be in Application.mk file.

Create a "Application.mk" file and write "APP_STL:=stlport_static" in it.

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Just spent days to update my NDK from r10e to r20, there're several variables are changed.

For NDK r10e

Android.mk:

include $(CLEAR_VARS)
LOCAL_MODULE := main
LOCAL_SRC_FILES := ./main.cpp   
LOCAL_C_INCLUDES += $(LOCAL_PATH)/
LOCAL_CPP_EXTENSION := .cxx .cpp .cc
LOCAL_CPPFLAGS := -fexceptions -frtti
LOCAL_CPPFLAGS += -std=c++11 -D__cplusplus=201103L
include $(BUILD_EXECUTABLE)

Application.mk:

APP_ABI := all
APP_STL := gnustl_static
NDK_TOOLCHAIN_VERSION := 4.9
APP_OPTIM := debug

For NDK r20

Android.mk:

include $(CLEAR_VARS)
LOCAL_MODULE := main
LOCAL_SRC_FILES := ./main.cpp   
LOCAL_C_INCLUDES += $(LOCAL_PATH)/
LOCAL_CPP_EXTENSION := .cxx .cpp .cc
LOCAL_CPPFLAGS := -fexceptions -frtti
LOCAL_CPPFLAGS += -std=c++11 -D__cplusplus=201103L -DANDROID_STL=c++_shared
include $(BUILD_EXECUTABLE)

Application.mk:

APP_ABI := all
#In general, you can only use a static variant of the C++ runtime if you have one and only one shared library in your application.
APP_STL := c++_static
NDK_TOOLCHAIN_VERSION := clang
APP_PLATFORM := android-23
APP_OPTIM := debug

and my main.cpp (including my bin_node.h):

int main(int argc,char **argv) {   
printf("****************** tree node ******************\n");
amo::BinNode<int> root(0);
amo::BinNode<int>* lchild1 = root.insertLeftChild(1);
amo::BinNode<int>* rchild2 = root.insertRightChild(2);
amo::BinNode<int>* lchild3 = lchild1->insertLeftChild(3);
amo::BinNode<int>* rchild4 = lchild1->insertRightChild(4);
amo::BinNode<int>* lchild5 = rchild2->insertLeftChild(5);
amo::BinNode<int>* rchild6 = rchild2->insertRightChild(6);
amo::BinNode<int>* lchild7 = lchild3->insertLeftChild(7);
amo::BinNode<int>* rchild8 = lchild3->insertRightChild(8);
amo::BinNode<int>* lchild9 = rchild6->insertLeftChild(9);
amo::BinNode<int>* rchild10 = rchild6->insertRightChild(10);
amo::BinNode<int>* lchild11 = rchild8->insertLeftChild(11);
amo::BinNode<int>* rchild12 = rchild8->insertRightChild(12);

printf("going to root.traversePre()\n");
root.traversePre();
printf("going to root.traversePreLoop()\n");
root.traversePreLoop();
printf("going to root.traversePreLoop2()\n");
root.traversePreLoop2();
printf("\n****************** main return ******************\n");
return 0;}

Run ndk-build and build an executable file

enter image description here

For more source code and information for this, check my GitHub

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