小编use*_*729的帖子

我收到这个错误.

error: warning: incompatible implicit declaration of built-in function ‘memcpy’ [enabled by default]

这是代码:

int arr[ 12] = {1,0,0,0,0,0,0,0,0,0,9370, 0};
void *a = &arr;
memcpy(machine->mem, a,12*4);

我做错了什么？

我读到这个:
AndroidManifest.xml中的错误"必须至少有2个段", 但没有解决方案.

它发生在我通过refactor-> rename(而不是com.example.my app到myapp)更改项目名称后,我也在清单中更改了名称.

这是代码:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="save_money"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="save_money.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name="save_money.Article"
            android:label="@string/title_activity_article" >
        </activity>
        <activity
            android:name="save_money.HashmalActivity"
            android:label="@string/title_activity_hashmal" >
        </activity>
        <activity
            android:name="save_money.ImageAdapter"
            android:label="a" >
        </activity>
        <activity
            android:name="save_money.SavedItems"
            android:label="?????? ??????" >
        </activity>
        <activity
            android:name="save_money.Screen2HashmalActivity"
            android:label="???? ?????" >
        </activity>
        <activity
            android:name="save_money.SelectArticle"
            android:label="??? ????" >
        </activity>
    </application>

</manifest>

我写了一个Android应用程序.我在Windows 7的cmd上键入zipalign myApp.apk,我得到:

zipalign' is not recognized as an internal or external command operable program or batch file

问题是什么

当我编译下面的C程序时,我得到了这个警告: ‘noreturn’ function does return.这是功能:

void hello(void){
  int i;
  i=1;
 }

为什么会这样？所有对此功能的调用都是hello();

编辑:完整的错误输出:

 home.c: In function ‘hello’:
 hhme.c:838:7: error: variable ‘i’ set but not used [-Werror=unused-but-set-variable]
 home.c:840:1: error: ‘noreturn’ function does return [-Werror]
 cc1: all warnings being treated as errors
 make: *** [home.o] Error 1