C语言 C 有引用吗？
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Does C have references?
提问by Hymany Hyman
Does C have references? i.e. as in C++ :
C 有引用吗？即在 C++ 中：
void foo(int &i)
回答by Jon Skeet
No, it doesn't. It has pointers, but they're not quite the same thing.
不，它没有。它有指针，但它们并不完全相同。
In particular, all arguments in C are passed by value, rather than pass-by-reference being available as in C++. Of course, you can sort of simulatepass-by-reference via pointers:
特别是，C 中的所有参数都是按值传递的，而不是像在 C++ 中那样按引用传递。当然，您可以通过指针模拟传递引用：
void foo(int *x)
{
*x = 10;
}
...
int y = 0;
foo(&y); // Pass the pointer by value
// The value of y is now 10
For more details about the differences between pointers and references, see this SO question. (And please don't ask me, as I'm not a C or C++ programmer :)
有关指针和引用之间差异的更多详细信息，请参阅此 SO 问题。（请不要问我，因为我不是 C 或 C++ 程序员:)
回答by sbi
Conceptually, C has references, since pointers reference other objects.
从概念上讲，C 有引用，因为指针引用其他对象。
Syntactically, C does not have references as C++ does.
从语法上讲，C 没有 C++ 那样的引用。
