std::strtoull在我的JNI NDK环境下无法识别

Question

我使用JNI在android项目下使用了一些c++代码。

但它总是发出警报说：

jni/sample.cpp: In function 'int Java_com_android_mymapsforge_create(JNIEnv*, jo
bject)':
jni/sample.cpp:78:14: error: 'strtoull' is not a member of 'std'
jni/sample.cpp:78:14: note: suggested alternative:
C:/TDDOWNLOAD/adt-bundle-windows-x86_64-20130729/ndk/android-ndk-r9/platforms/an
droid-14/arch-arm/usr/include/stdlib.h:66:27: note:   'strtoull'
make: *** [obj/local/armeabi/objs/ann/sample.o] Error 1

但是，如果我包含stdlib.h，它仍然有错误toast。我的android.mk文件内容如下：

LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_C_INCLUDES := $(LOCAL_PATH)/../ 
LOCAL_MODULE    := libann
LOCAL_LDLIBS    := -llog
NDK_TOOLCHAIN_VERSION := clang
LOCAL_CPPFLAGS += -std=c++11
LOCAL_SRC_FILES := 
    ANN.cpp 
    bd_pr_search.cpp 
    bd_tree.cpp 
    kd_pr_search.cpp 
    kd_split.cpp 
    kd_util.cpp 
    bd_fix_rad_search.cpp 
    bd_search.cpp 
    brute.cpp 
    kd_fix_rad_search.cpp 
    kd_search.cpp 
    kd_tree.cpp 
    kd_dump.cpp 
    perf.cpp
    sample.cpp
include $(BUILD_SHARED_LIBRARY)

我的Application.mk是这样的：

# The ARMv7 is significanly faster due to the use of the hardware FPU
APP_ABI := armeabi armeabi-v7a
#APP_ABI := armeabi
APP_OPTIM := release
#APP_OPTIM := debug
#APP_STL := stlport_static
APP_STL := gnustl_static

每当我将APP_STL标志更改为stlport_static、stlport_shared、gnustl_shared时。

它仍然有错误toast，

有没有类似的问题？

还有一点，我的ndk版本是android-ndk-r9

Answer 1

是否包含<cstdlib>？标头<cstdlib>应声明std::strtoull，而<stdlib.h>应声明不带std::的strtoull。