Discussion
What is the output of C program with arrays?
int main()
{
int a[3] = {20,30,40};
int b[3];
b=a;
printf("%d", b[0]);
}
Answer: A
Correct answer: Compiler Error
An array is not assignable. b = a; fails because b is not a modifiable lvalue - the name denotes fixed storage, not a pointer variable that could be repointed. Copying an array means copying its elements, with a loop or with memcpy(b, a, sizeof(a)).
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