c++ - char a[100] = {'\0'}与memset(a, 0, sizeof(a))有什么区别?

如题所 char a[100] = {'0'} 与 memset(a, 0, sizeof(a)) 什么区别?

From [C++discussion group] 2017-04-17 15:24:09 0  7  1482

imperfect

Why can you continue to play chess after losing?

From [C++discussion group] 2018-09-04 00:48:30 0  2  1471

c++ inputs a positive integer and outputs the addition process of this positive integer

Input a positive integer and output the addition process of this positive integer. For example: input 3 output...

From [C++discussion group] 2020-09-25 23:55:50 0  0  1448

使用clion为什么cmake引入boost不成功

报错信息"C:\Program Files (x86)\JetBrains\CLion 2016.2.3\bin\cmake\bin\cmake.exe" --...

From [C++discussion group] 2016-11-10 09:28:58 0  3  1442

[C++ Error] no matching function for call to 'toupper(__gnu_cxx::__alloc_traits<std::allocator<std::basic_string<char> > >::value_type&)'

菜鸟一名，求助，百度了这段错误提示，可是没找到答案。请说简单一点，刚学c++没多久。谢谢

From [C++discussion group] 2017-04-17 11:30:12 0  2  1438

What does this symbol //! [0] mean in c++?

I am learning to use qtcreator, but when I saw the example code, I don’t know what the //! [] type thing does....

From [C++discussion group] 2017-05-16 13:23:18 0  1  1436

c++ - How to define a macro in C to obtain the function name through a function

How to define a macro to obtain the function name string, as follows: {code...}

From [C++discussion group] 2017-07-04 13:45:23 0  1  1419

c++ - Qt 编译时提示缺少corecrt.h

本来Qt是可以正常编译的. 后来安装的windows driver kit. 后提示缺少C:Program Files (x86)Microsoft Visual Studio 14.0VCincludecrtdefs....

From [C++discussion group] 2017-04-17 14:29:07 0  2  1408

python - vscode how to input in the console

As shown in the picture, only the content of cout can be displayed in the input box. The variables that need t...

From [C++discussion group] 2017-07-03 11:41:56 0  2  1403

How to non-block input in C language (check if stdin has content)

getchar, scanf, getch, these will block if the user does not input. What should I do if I don't want to block?...

From [C++discussion group] 2017-06-17 09:16:16 0  1  1400

dev-c++ - dev C++如何查看对应的汇编语言代码

记得用VC6时可以查看，Win8系统装的DEV，想问下如何查看C语言生成的对应的汇编语言.

From [C++discussion group] 2017-04-17 11:55:02 0  2  1388

c/c++中改变子函数里调用的主函数中的数组的值，主函数中的数组本身会变吗？

函数举例如下： {代码...} 我的测试是：主函数中的L确实会改变。请问，这是因为数组本身是指针。还是因为我在哪里搞错了，需要另写指针返回？谢谢。

From [C++discussion group] 2017-04-17 13:45:18 0  4  1386

c++ - 函数内部cout无法使用

平台：win10+vs2017代码1： {代码...} 执行成功。如果我把nice函数中if语句块的return变成cout，再将函数返回类型变成void。程序不执行该语句。代码如下： {代码...} 请问这是什么原因呢...

From [C++discussion group] 2017-04-17 15:33:57 0  1  1385

C/C++如何直接关闭应用程序窗口？

Windows下return 0;或exit();都不能达到直接关闭应用程序窗口的效果,怎样才能跳过press any key to continue呢？

From [C++discussion group] 2017-04-17 11:38:06 0  3  1385

c++ - How to determine if two variables are equal

The pointer variable PVOID lpbuffer points to a memory address, variable GUID g = {0x25a207b9,0xddf3,0x4660,{0...

From [C++discussion group] 2017-06-17 09:15:56 0  3  1370