是否有 C# 空合并运算符的 C++ 等效项?我在我的代码中做了太多的空检查.所以一直在寻找一种方法来减少空代码的数量.
Is there a C++ equivalent for C# null coalescing operator? I am doing too many null checks in my code. So was looking for a way to reduce the amount of null code.
在 C++ 中默认没有办法做到这一点,但你可以写一个:
There isn't a way to do this by default in C++, but you could write one:
在 C# 中 ??运算符定义为
in C# the ?? operator is defined as
a ?? b === (a != null ? a : b)
所以,C++ 方法看起来像
So, the C++ method would look like
Coalesce(a, b) // put your own types in, or make a template
{
return a != null ? a : b;
}
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