void DoSomeThing(CHAR parm[])
{
}
int main()
{
DoSomeThing(NULL);
}
Is the passing NULL for array parameter allowed in C/C++?
void DoSomeThing(CHAR parm[]) { } int main() { DoSomeThing(NULL); } Is the passing NULL
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void DoSomeThing(CHAR parm[])
{
}
int main()
{
DoSomeThing(NULL);
}
Is the passing NULL for array parameter allowed in C/C++?
What you cannot do is pass an array by value. The signature of the function
is transformed into:
and you can always pass NULL as argument to a function taking a pointer.
You can however pass an array by reference in C++, and in that case you will not be able to pass a NULL pointer (or any other pointer):
Note that the size of the array is part of the type, and thus part of the signature, which means that
gwill only accept lvalue-expressions of type array of 10 characters