OCaml是否有能力通过引用传递? [英] Does OCaml have the ability to pass by reference?

问题描述

在C ++中，程序可以将引用而不是值传递给函数.

In C++ a program can pass a reference, not value to a function.

void incrementInt(int &x) 
{
  ++x;
}

OCaml是否提供相同的功能?

Does OCaml offer this same functionality?

推荐答案

不，没有严格的等效项.

No, there is no strict equivalent.

有ref，类似于指向新分配的内存的指针，并且有对象引用"传递的记录，数组，对象和其他复合数据类型的值，这再次表示它们起作用就像指向新分配的内存的指针.

There are refs, which are like pointers to new-allocated memory, and there are records, arrays, objects and values of other compound data types, that are passed "by object reference", which again means they act like pointer to new-allocated memory.

但是，没有等效于指向变量或C ++引用的指针.

However there's no equivalent to a pointer to a variable or a C++ reference.

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