asm auto bad_cast bad_typeid bool break case catch char class const const_cast continue default delete do double dynamic_cast else enum except explicit extern false finally float for friend goto if inline int long mutable namespace new operator priv
要理解 C# 中的 volatile 关键字,就要先知道编译器背后的一个基本优化原理。比如对于下面这段代码:
public class Example
{
public int x;
public void DoWork()
{
x = 5;
var y = x + 10;
Debug.WriteLine("x = " +x + ", y = " +y);
}
}
在 Release 模式下,编译器读取 x = 5 后紧接着读取 y = x + 10,在单线程思维模式下,编
为什么使用volatile ?
C/C++中的 volatile 关键字 和const对应,用来修饰变量,通常用于建立语言级别的memory barrier。这是BS在“The C++ Programming Language”对volatile修饰词的解释:
A volatile specifier is a hint to a compiler that an object may change its value in ways not specified by the language