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Creating a daemon in Linux

...are necessary, these can be encoded by prefixing individual log lines with strings like "<4>" (for log level 4 "WARNING" in the syslog priority scheme), following a similar style as the Linux kernel's printk() level system. For details, see sd-daemon(3) and systemd.exec(5). To learn mor...
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What is the best way to use a HashMap in C++?

...lude <cassert> int main(int argc, char **argv) { std::map<std::string, int> m; m["hello"] = 23; // check if key is present if (m.find("world") != m.end()) std::cout << "map contains key world!\n"; // retrieve std::cout << m["hello"] << '\n'; std::map&...
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浅析为什么char类型的范围是 -128~+127 - C/C++ - 清泛网 - 专注C/C++及内核技术

浅析为什么char类型的范围是 -128~+127在C语言中, signed char 类型的范围为-128~127,每本教科书上也这么写,但是没有哪一本书上(包括老师)也不会给你为什么是-128~127,这...在C语言中, signed char 类型的范围为-128~127,每本教科书上...
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How to convert std::string to NSString?

Hi I am trying to convert a standard std::string into an NSString but I'm not having much luck. 6 Answers ...
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How to print Boolean flag in NSLog?

...orm: condition ? result_if_true : result_if_false Substitute actual log strings accordingly where appropriate. share | improve this answer | follow | ...
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C++ where to initialize static const

... unit (usually a .cpp file) would do: foo.h class foo { static const string s; // Can never be initialized here. static const char* cs; // Same with C strings. static const int i = 3; // Integral types can be initialized here (*)... static const int j; // ... OR in cpp. }; f...
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string.split - by multiple character delimiter

i am having trouble splitting a string in c# with a delimiter of "][". 4 Answers 4 ...
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How to pass an object from one activity to another on Android

...ublic class Deneme implements Serializable { public Deneme(double id, String name) { this.id = id; this.name = name; } public double getId() { return id; } public void setId(double id) { this.id = id; } public String getName() { ...
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How to declare variable and use it in the same Oracle SQL script?

... Is it possible to concatenate variables+strings? – Ecropolis Jun 18 '14 at 15:01 @E...
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How do I split a string so I can access item x?

Using SQL Server, how do I split a string so I can access item x? 44 Answers 44 ...