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C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术
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MessageBuffer.cpp
//MessageBuffer.cpp
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <pthread.h>
#include "MessageBuffer.h"
MessageBuffer::MessageBuffer() {
toStop = false;
pthread_mutex_init(&mutex,NULL);//初始化互斥量
pthread_cond_init(&condition,NULL)...
Why use pointers? [closed]
...hing else. In C you don't have any support for complex datatypes such as a string. There are also no way of passing a variable "by reference" to a function. That's where you have to use pointers. Also you can have them to point at virtually anything, linked lists, members of structs and so on. But l...
What should main() return in C and C++?
...members argv[0] through
argv[argc-1] inclusive shall contain pointers to strings, which are given
implementation-defined values by the host environment prior to program startup. The
intent is to supply to the program information determined prior to program startup
from elsewhere in the hoste...
How to replace all occurrences of a string?
I have this string:
70 Answers
70
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How do I make a textbox that only accepts numbers?
...to implement such thing recently and i ended up with try-parsing resulting string to number and allowing input only if parsing succeeded
– grzegorz_p
Jan 4 '12 at 15:03
1
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Convert pem key to ssh-rsa format
...PubKey = NULL;
RSA* pRsa = NULL;
BIO *bio, *b64;
ERR_load_crypto_strings();
OpenSSL_add_all_algorithms();
if (argc != 3)
{
printf("usage: %s public_key_file_name ssh_key_description\n", argv[0]);
iRet = 1;
goto error;
}
pFile = fopen(argv[1], "rt");
i...
Serialize an object to string
...
Use a StringWriter instead of a StreamWriter:
public static string SerializeObject<T>(this T toSerialize)
{
XmlSerializer xmlSerializer = new XmlSerializer(toSerialize.GetType());
using(StringWriter textWriter = new...
What is the difference between printf() and puts() in C?
...ically appends a newline. If that's not what you want, you can fputs your string to stdout or use printf.
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CentOS+Nginx+PHP+MySQL详细配置(图解) - PHP - 清泛IT论坛，有思想、有深度
...PHP-FPM说白了是一个管理FastCGI的一个管理器，它作为PHP的插件纯在，在安装PHP要想使用PHP-FPM时就需要把PHP-FPM以补丁的形式安装到PHP中，而且PHP要与PHP-FPM版本一致，这是必须的，切记！
首先我们把PHP和PHP-FPM...
My attempt at value initialization is interpreted as a function declaration, and why doesn't A a(())
...st one argument. One of built-in classes which takes two arguments is std::string
std::string hundred_dots(100, '.');
This is all well and fine (technically, it would have most vexing parse if it would be written as std::string wat(int(), char()), but let's be honest - who would write that? But l...