Discussion
What is the output of this C code?
void foo();
int main()
{
void foo(int);
foo();
return 0;
}
void foo()
{
printf("2 ");
}
Answer: B
Correct answer: Compile time error
Here the two disagree. The declaration in scope says void foo(int), so foo() is called with too few arguments; and the definition, void foo(), conflicts with it as well. Either fault alone is enough for the compiler to reject the program.
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