Evaluate C for-loop execution count
Company: Bitkernel
Role: Software Engineer
Category: Software Engineering Fundamentals
Difficulty: medium
Interview Round: Take-home Project
In C, variables `m` and `n` are both of type `int`. Consider the following code:
```c
int m, n;
for (m = 0, n = -1; n = 0; m++, n++)
n++;
```
In standard C semantics (where `=` is assignment, not comparison), how many times does the loop body (`n++` inside the loop) execute?
Options:
- A. The loop body executes 0 times
- B. The loop body executes 1 time
- C. The loop is infinite
- D. There is a runtime error
Quick Answer: This question evaluates understanding of C expression evaluation and control-flow semantics, focusing on how assignment expressions interact with loop conditions and variable updates.