Discussion
What is the output of this C code?
int main()
{
void foo(), f();
f();
}
void foo()
{
printf("2 ");
}
void f()
{
printf("1 ");
foo();
}
Answer: B
Correct answer: 1 2
Declaring void foo(), f(); inside main is legal - it declares them, without defining them, and the declaration is simply local in scope. f() is then called; it prints 1 and calls foo, which prints 2. Output: 1 2.
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