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codeblocks編譯c可以，編譯c++一堆錯(cuò)誤

codeblocks 版本號(hào)16.01mingw版本號(hào) 0.6.2-beta-20131004-1一個(gè)簡(jiǎn)單地c++程序#include <iostream> using namespac...

From [C++discussion group] 2016-11-01 11:05:53 0  1  1354

c++ - 為什么指針變量 的sizeof()打印出來(lái)的都是 4；

{代碼...} 以前聽人講過一點(diǎn)，比如在這里a指向的都是第一個(gè)字節(jié)的地址，但是為什么打印出來(lái)的是4，還是有點(diǎn)懵，來(lái)個(gè)人好好講講撒。

From [C++discussion group] 2017-04-17 14:32:34 0  5  1351

c++ - protobuf repeated 怎么用的？

是否可以用這個(gè)字段傳輸很多個(gè)該類型的數(shù)據(jù)？

From [C++discussion group] 2017-04-17 11:09:19 0  4  1339

c++為什么不支持直接創(chuàng)建動(dòng)態(tài)的多維數(shù)組？

C/C++為什么不支持直接創(chuàng)建動(dòng)態(tài)的多維數(shù)組呢？如果要需要一個(gè)二維數(shù)組int dpsize1， size1和size2都是在程序運(yùn)行中確定的。采用int[][] dp = new ...

From [C++discussion group] 2016-11-17 16:13:37 0  4  1335

c/c++中memset(str, 0, sizeof(str))用法？

c/c++中memset(str, 0, sizeof(str))與memset(str, '/0', sizeof(str))與 memset(str, '\0', sizeof(str))有什么區(qū)別呢？

From [C++discussion group] 2017-04-17 15:16:33 0  1  1325

Problem assigning base class pointer to derived class

Assign the derived class address to the base class pointer, that is, the base class pointer refers to the deri...

From [C++discussion group] 2017-06-05 11:11:46 0  3  1324

c++ - 用scanf如何讀入long double和unsigned char?

用scanf如何讀入long double和unsigned char? 語(yǔ)言學(xué)得不精，還請(qǐng)眾神指點(diǎn)…… 網(wǎng)上找了一下，可是照著打不行啊。。。 以下是代碼和編譯信息(c++) {代碼...} 1625.cpp:9:20:...

From [C++discussion group] 2017-04-17 11:10:18 0  1  1321

c++ - 用C語(yǔ)言socket登入斗魚彈幕服務(wù)器的問題

根據(jù)斗魚給的開發(fā)者手冊(cè)，用struct構(gòu)建出應(yīng)用層協(xié)議頭，發(fā)送登入請(qǐng)求，建立連接成功但沒有從服務(wù)器傳回有效消息。代碼不長(zhǎng)，邊學(xué)socket邊寫的注釋。抓包顯示成功的建立了連接，圖片放在最后。 {代碼...} 協(xié)議組成.....

From [C++discussion group] 2017-04-17 14:35:57 0  4  1320

How to send image files and other data through http post in C++

Request method: post Request content: {code...} I work in PHP, and I can only write local code in C++. He will...

From [C++discussion group] 2017-05-31 10:39:33 0  3  1319

What does exit(EXIT_FAILURE) do?

exit(EXIT_TRUE), does this: {code...} What about exit(EXIT_FAILURE)?

From [C++discussion group] 2017-05-31 10:38:51 0  1  1315

c++ - What do itoa and atoi mean in C?

itoa means i to a? i represents int, so what about a?

From [C++discussion group] 2017-06-12 09:24:38 0  2  1312

getthreadcontext 返回值：87，請(qǐng)問如何解決

在windows7 x64平臺(tái)，調(diào)用getthreadcontext 返回值：87， 請(qǐng)問如何解決，windbg調(diào)試該內(nèi)核API嗎？關(guān)鍵代碼：CONTEXT cxt; SuspendThread(hThread...

From [C++discussion group] 2016-11-01 10:23:07 0  1  1307

c++ - ld: library not found for -lGL on Mac

從https://github.com/openglredbook/examples 下載了OpenGL編程指南的樣例代碼，但是運(yùn)行的時(shí)候報(bào)錯(cuò)，在build文件夾運(yùn)行cmake .. 報(bào)錯(cuò)如下(運(yùn)行環(huán)境是Mac)： {代...

From [C++discussion group] 2017-04-17 15:38:08 0  3  1297

File lock - C++ fstream opens a txt file in ios::out|ios::in mode, but Notepad can modify the file while the program is running?

C++ fstream opens a txt file in ios::out|ios::in mode, but Notepad can modify the file while the program is ru...

From [C++discussion group] 2017-05-16 13:24:22 0  2  1296

C++ error C2678: binary '<<': no ??operator found accepting left operand of type 'const std::ostream'

I called the operator&lt;&lt; of SortedSinglyList in LinkedMatrix's operator&lt;&lt;, and dete...

From [C++discussion group] 2017-06-05 11:11:05 0  1  1283