How to Compile C++14 code for Android?

Question

Is it possible to compile C++14 source code for Android with ndk10d? I've tried both g++ and clang compilers but it seems that -std=c++14 -std=c++1y flags do not work.

If I use c++_static as my APP_STL, i get the following error:

User/someone/Software/Android/android-ndk-r10d/platforms/android-17/arch-arm/usr/include/locale.h:55:1: error: empty struct has size 0 in C, size 1 in C++

Edit: I am using Mac OSX 10.10.4 with Xcode 6.3.2 (able to compile C++14 for iOS).

I've been using C++14 with the NDK (R10c) for a while, so it does work. I'm using clang 3.4/3.5 to build, and gnustl_static as the STL (I couldn't build with c++_static; I don't remember the exact reason for that). I'm not sure if I used `-std=c++14` or `std=c++1y`, but I think it was `1y`. — Michael, Jul 14 '15 at 18:46
I tried your settings but it still doesn't work, I'm using clang 3.6 (based on LLVM 3.6.0) — Crossfire, Jul 15 '15 at 10:32

score 6 · Answer 1 · answered Aug 18 '16 at 08:33

6

I use android-ndk-r12b-windows-x86_64, compile success with -std=c++14

Android.mk

LOCAL_CPPFLAGS  = -Wall -std=c++14

answered Aug 18 '16 at 08:33

KunMing Xie

1,613
17
15

I was able to compile, but when I try to load the shared library it says the binary is not a valid ELF executable. – Alexander Haroldo da Rocha Jun 12 '17 at 11:56

Crossfire · Answer 2 · 2015-12-04T14:14:14.070

3

If someone needs an answer to this question, I have found it here.

It's called CrystaX and basically it is a modified version of the Android NDK that allows targeting C++14, Boost libraries and has a number of other features.

edited Dec 04 '15 at 14:14

answered Dec 04 '15 at 13:17

Crossfire

1,801
3
21
37

score 1 · Answer 3 · answered Aug 14 '16 at 16:06

1

I'm using the following directives in my Application.mk. Switching to the clang toolchain via NDK_TOOLCHAIN_VERSION solved a bunch of problems.

APP_CPPFLAGS += -std=c++14
APP_STL := c++_static
NDK_TOOLCHAIN_VERSION := clang

answered Aug 14 '16 at 16:06

nenchev

1,998
28
16

score 0 · Answer 4 · answered Oct 15 '15 at 20:29

0

If I use c++_static as my APP_STL, i get the following error:

User/someone/Software/Android/android-ndk-r10d/platforms/android-17/arch-arm/usr/include/locale.h:55:1: error: empty struct has size 0 in C, size 1 in C++

I'm getting the same when I'm using iostream. But this is only a warning (I'm using NDK 10e) and it builds just fine. The warning is "-Wextern-c-compat" which you could turn off just like any other warning.

answered Oct 15 '15 at 20:29

Daniel Ryan

6,976
5
45
62

I was using `-werror`, so the compiler made this warning into an error. – Crossfire Oct 16 '15 at 10:44
Ah right. Well you could just turn off this warning or continue to remove the werror flag. For now I just have the warning showing. – Daniel Ryan Oct 18 '15 at 23:13

Jimmy KD · Answer 5 · 2021-04-04T12:45:14.483

I create a android project with native cpp for c++17:

in the app/build.gradle file:

NDK: 21

android {
    compileSdkVersion 30
    buildToolsVersion "30.0.3"

    defaultConfig {
        applicationId "com.example.myapplication"
        minSdkVersion 16
        targetSdkVersion 30
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        externalNativeBuild {
            cmake {
                cppFlags "-std=c++17" # this answer key
            }
        }
    }
}

There is a demo for this, https://github.com/c0i/GameV4/commit/f9a3728f1aebc70d79dc9791cc9854ef5e41cae1

Thanks,

How to Compile C++14 code for Android?

5 Answers5

Linked