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Returning a C string from a function
...
{
return "My String";
}
Background:
It's so fundamental to C & C++, but little more discussion should be in order.
In C (& C++ for that matter), a string is just an array of bytes terminated with a zero byte - hence the term "string-zero" is used to represent this particular flavour...
How to generate a random number in C++?
...es but for any serious use they are mostly useless.
EDIT2:
When using C or C++ standard library it is important to understand that as of now there is not a single standard function or class producing actually random data definitively (guaranteed by the standard). The only standard tool that approach...
Boost.Asio的简单使用(Timer,Thread,Io_service类) - C/C++ - 清泛网 - 专注C/C++及内核技术
...实现周期运行,所以我们再介绍两个新参数
指向timer的指针
一个int*来指向计数器
void print(const asio::error& /*e*/,
asio::deadline_timer* t, int* count)
{
我们打算让这个函数运行6个周期,然而你会发现这里没有显式的方法来...
What is object slicing?
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Interesting. I've been programming in C++ for 15 years and this issue never occurred to me, as I've always passed objects by reference as a matter of efficiency and personal style. Goes to show how good habits can help you.
– Karl Bielefeld...
How do you reverse a string in place in C or C++?
How do you reverse a string in C or C++ without requiring a separate buffer to hold the reversed string?
30 Answers
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In c++ what does a tilde “~” before a function name signify?
...ack.
But taking your question exactly as it appears in the title:
In c++ what does a tilde “~” before a function name signify?
there is another situation. In any context except immediately before the name of a class (which is the destructor context), ~ is the one's complement (or bitwise...
Language Books/Tutorials for popular languages
...ad-tree book.
If you want to learn C, read K&R. If you want to learn C++, read Stroustrup. If you want to learn Lisp/Scheme, read SICP. Etc.
If you're not willing to spend more than $30 and a few hours to learn a language, you probably aren't going to learn it.
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Should I return EXIT_SUCCESS or 0 from main()?
...stion, but I keep seeing conflicting answers: should the main routine of a C++ program return 0 or EXIT_SUCCESS ?
8 Answ...
手握利器，直面“蓝脸”! ——使用WinDbg抗击系统崩溃 - 操作系统(内核) - ...
...(InstructionPtr，仅x86处理器，用于决定帧的堆栈回朔的指令指针)不存在于任何已知的模块中，下面的帧可能出现错误”。这个意思的解释已超出本文讨论范围，笔者仅告诉大家，这行文字下面的一行右侧的模块是系统蓝屏崩溃时...
How to convert a number to string and vice versa in C++
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Update for C++11
As of the C++11 standard, string-to-number conversion and vice-versa are built in into the standard library. All the following functions are present in <string> (as per paragraph 21.5).
string to numeric
float ...