null was not declared in this scope

错误解决办法：‘NULL’ was not declared in this scope

　　这错误有点莫名其妙的。解决起来也简单，增加以下代码：#include <cstddef>

#include

原创

柳鲲鹏泰山

2022-01-27 10:30:18

101阅读

错误解决办法：‘NULL’ was not declared in this scope

　　这错误有点莫名其妙的。解决起来也简单，增加以下代码：#include <cstddef>

#include

原创

柳鲲鹏泰山

2021-08-06 17:57:47

3425阅读

‘sprintf’ was not declared in this scope

添加头文件#include <stdio.h>

#include

头文件

原创

寰宇CC

2022-09-15 15:26:03

328阅读

GetConsoleWindow was not declared in this scope

有时使用GetConsoleWindow()找控制台窗口的句柄时，会提示出错信息：'GetConsoleWindow' was not declared in this scope.解决的方法有：要么在文件头写上：#define _WIN32_WINNT 0x0500要么在文件头写上：wincon.h要么在文件头写上：extern "C" WINBASEAPI HWND WINAPI GetCon

GetConsoleWindow

转载精选

whatever957

2015-04-03 13:14:52

2222阅读

‘close’ was not declared in this scope

‘close’ was not declared in this scope ‘read’ was not declared in this scope ‘sysconf’ was not declared in this scope 没有包含头文件 unistd.h 造成的。加上' #inclu

#include

头文件

转载

mb5fe1900cd6223

2017-10-23 17:33:00

154阅读

2评论

‘close’ was not declared in this scope

‘close’ was not declared in this scope‘read’was not declared in this scope‘sysconf’was not declared in this scope没有包含头文件 unistd.h 造成的。加上'#include <unistd.h>...

#include

头文件

原创

寰宇CC

2022-09-15 14:51:36

196阅读

‘memset’ was not declared in this scope

添加头文件#include <string.h>

#include

头文件

原创

寰宇CC

2022-09-15 14:54:44

190阅读

C++ was not declared in this scope

大概一搜百度，没搜到想要的结果，后面自己发现问题，由于是第二次犯这个错误（第一次很快发现，这一次找了比较久），所以记录一下当调用一个数据结构或者一个函数的时候，出现这个语句，首先看相关的头文件有没有include进来，其次再看看using namespace std;有没有漏写我两次都是漏写us ...

百度

头文件

数据结构

IT

转载

mb5fe55a455f6b0

2021-08-17 22:26:00

1011阅读

2评论

error: ‘errno’ was not declared in this scope

问题：将一个c文件改为cpp文件，其中的perror()改用C++中的std::cerr ，而strerror()只需要用到头文件，所以，重新编译时，将替换为。2. errno无疑是一个系统定义的全局变量，不是由用户来声明或定义的。查到中有这样的宏定义#ifndef errno extern int errno;=

头文件

重新编译

ubuntu

#ifndef

c++

转载

mb5fcdf35dba419

2013-06-22 16:41:00

605阅读

2评论

error: 'nullptr' was not declared in this scope

两种情况 > 1. vs code 自带编译的 > 在 task.josn 里 > "args": ["-m32","-g","-std=c++11","${file}", "-o", "${fileDirname}/${fileBasenameNoExtension}.exe"], > 加上 "- ...

C++

c++11

知乎

转载

mob604756fb6267

2021-06-18 00:01:00

331阅读

2评论

‘close’ was not declared in this scope（转）

‘close’ was not declared in this scope 没有包含头文件 unistd.h 造成的。加上' #include <unistd.h>

#include

头文件

其他

转载

mb5ff2f2ed7d163

2017-03-25 11:46:00

266阅读

2评论

[Error] 'sort' was not declared in this scope

【问题描述】由于学习Ｊａｖａ用的编译器为Ｅｃｌｉｐｓｅ和ＩＤＥＡ今天使用Ｄｅ

Ｃ语言错误

i++

解决方法

#include

原创

流年若逝

2022-07-18 15:58:53

524阅读

strcmp was not declared in this scope(转)

As detailed in the Header dependency streamlining, originally found here, many of the standard C++ library include files additional fil

sed

#include

ruby

转载

wencoo

4月前

37阅读

【error】'isnan' was not declared in this scope

error问题 isnan在cmath中被取消宏定义；使用的时候可以在isnan前加上std命名空间即可；

命名空间

宏定义

原创

mb62c788fd198da

2022-07-09 00:48:38

250阅读

error: ‘nullptr’ was not declared in this scope

-std=c++0xcmake#define nullptr NULL

c++11

编译选项

#define

其他

原创

柳鲲鹏泰山

2022-02-07 18:02:20

1857阅读

error: ‘nullptr’ was not declared in this scope

-std=c++0xcmake#define nullptr NULL

c++11

编译选项

#define

宏定义

c++0x

原创

柳鲲鹏泰山

2021-08-07 12:57:01

1483阅读

error: 'LOGE' was not declared in this scope

移植了下HAL，发现编译出现如下错误error: 'LOGE' was not declared in this scope比较了一下android4.1的system/core/include/cutils/log.h和android4.0的对应文件，发现在4.1当中已经将所有的LOG宏前面加了一...

字符串

sed

linux

批量替换

搜索

转载

mb5ff982de32716

2015-07-02 14:46:00

140阅读

2评论

error: `cout' was not declared in this scope

Linux下C++编译出错原因解析程序：#include int main(){cout }编译出错：

#include

编译出错

g++

转载

tingtang13

2023-07-31 17:37:48

503阅读

‘inet_pton’ was not declared in this scope

‘inet_pton’ was not declared in this scope缺少头文件#include <arpa/inet.h>

#include

头文件

原创

寰宇CC

2022-09-15 15:31:49

1064阅读

api scope is not declared in the privacy agreement

最近好多朋友都遇到了在选择图片，选择地点，选择地址，获取手机号等等的时候，忽然就没反应了的想象，然后看命令行，提示的错误都是：xxxx api scope is not declared in the privacy agreement这其实都是腾讯的【隐私保护】的原因。就是说如果你的小程序中使用到了涉及到用户隐私的api，需要提前向用户（腾讯）说明，不然相应的 api 是无法调用成功的

微信小程序

用户隐私

原创

蒋劲豪7

2月前

629阅读

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null was not declared in this scope

错误解决办法：‘NULL’ was not declared in this scope

错误解决办法：‘NULL’ was not declared in this scope

‘sprintf’ was not declared in this scope

GetConsoleWindow was not declared in this scope

‘close’ was not declared in this scope

‘close’ was not declared in this scope

‘memset’ was not declared in this scope

C++ was not declared in this scope

error: ‘errno’ was not declared in this scope

error: 'nullptr' was not declared in this scope

‘close’ was not declared in this scope（转）

[Error] 'sort' was not declared in this scope

strcmp was not declared in this scope(转)

【error】'isnan' was not declared in this scope

error: ‘nullptr’ was not declared in this scope

error: ‘nullptr’ was not declared in this scope

error: 'LOGE' was not declared in this scope

error: `cout' was not declared in this scope

‘inet_pton’ was not declared in this scope

api scope is not declared in the privacy agreement

error: ‘gets’ was not declared in this scope gets(str);

error: 'memcpy' was not declared in this scope的解决

error: 'INT_MAX' was not declared in this scope

PLS-00313: 'XXXXX' not declared in this scope

error: ‘_swprintf’ was not declared in this scope 解决办法

error: ‘avcodec_alloc_frame’ was not declared in this scope

C++文件错误| 'strcmp' was not declared in this scope|

C++ error: ‘shared_ptr’ was not declared in this scope

error: ‘PIX_FMT_YUV420P’ was not declared in this scope