为什么C＃允许浮点类型划分非零数字被零？ [英] Why does C# allow dividing a non-zero number by zero in floating-point type?

问题描述

为什么C＃允许：

1.0 / 0 // Infinity

和不允许：

1 / 0 // Division by constant zero [Compile time error]

在数学上，有积分和浮点之间的差异在被零除点数？

Mathematically, is there any differences between integral and floating-point numbers in dividing by zero?

推荐答案

据微软称，浮点运算溢出或除以零从未抛出异常由于浮点类型是基于IEEE 754，因此有代表无穷大，NaN（非数字）的规定。

According to Microsoft, "Floating-point arithmetic overflow or division by zero never throws an exception, because floating-point types are based on IEEE 754 and so have provisions for representing infinity and NaN (Not a Number)."

更多关于此的here 。

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