问题描述
默认情况下，C#为什么不使用算术溢出检查?
我认为，发生异常通常会更好，这样就不会掩盖错误.我知道偶尔利用发生的包装"行为很有用，但是在这些情况下可以使用unchecked关键字来明确意图.
I figure that it would generally be better to have exceptions occur when this occurs so that errors aren't obscured. I know that it's occasionally useful to take advantage of the 'wrapping' behaviour that occurs, but the unchecked keyword could be used in these circumstances to make the intentions explicit.
我希望这个决定是有意做出的，也许是为了增加与其他基于C语言的兼容性.
I expect that this decision was made intentionally, perhaps to increase compatibility with other C-based languages.
推荐答案
C#语言规范说:
选择该选项的原因可能是性能.我同意这一决定会导致那些不了解静默"整数溢出的错误.
The reason for this choice is probably performance. I agree that this decision leads to errors among those who are not aware of "silent" integer overflow.
如果您的C#文件属于C#项目文件(*.csproj)，则该文件包含默认"溢出检查上下文的配置.若要对其进行更改，请参见要在Visual Studio开发环境中设置此编译器选项 ="noreferrer">此页面.
If your C# files belong to a C# project file (*.csproj), then that file holds configuration of the "default" overflow checking context. To changed it, see To set this compiler option in the Visual Studio development environment in this page.
如果您不使用.csproj文件，则可能是从命令行编译了所有内容，然后上一页告诉您使用哪个命令行选项来设置默认的溢出检查上下文.
If you don't use .csproj files, you're probably compiling everything from the command line, and then the above page tells you what command line option to use to set the default overflow checking context.
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