arraySize

09-19-2007

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arraySize

Hi ,

I like to find the size of an array in the function which takes an array as a parameter .

eg:

void fun(int a[])
{
// Size of an array `a` to be calculated here
}

int main()
{
int a[10];
fun(a);
}

arunviswanath

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09-19-2007

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Answer is - you can't.

As all you get in fun is a pointer.

however, you can with a macro

#define fun(x) (sizeof(x)/sizeof(x[0]))

porter

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Programming

arraySize