How Can Arrays Be Passed by Reference in C ?

Passing Arrays by Reference in C

Question:

Can arrays be passed by reference in C ? If so, what is the proper syntax?

Answer:

Yes, arrays can only be passed by reference in C . The proper syntax is:

void foo(double (&bar)[10])

where bar is the array reference and 10 is the size of the array.

However, this syntax prevents passing arrays of arbitrary sizes. To pass an array of any size, a templated function can be used:

template<typename T, size_t N>
void foo(T (&amp;bar)[N])

where N captures the array size at compile time.

Alternatives:

Consider using std::vector or std::array (in C 11) as alternatives to passing arrays by reference. These offer a more flexible and safe way to handle collections of data.

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