# Generation limits (llmcpp)

**Generation limits** bound the effort spent implementing one body. The numbered examples give a score-counting function two rejected submissions and a 120-second deadline:

```cpp
__llm__(max_attempts(2), timeout(120)) int passing(const std::vector<int> &scores)
{
    Count scores greater than or equal to 60.
}
```

These function settings override the corresponding driver defaults. A failed `submit` consumes an attempt; a failed `try_compile` uses a tool call but not a submission attempt.

Other limits cap compiler-tool calls and tokens per model response. Supported settings are passed with the task, and the compiler enforces its budgets. The bundled CLI adapters reject explicit output-token limits they cannot enforce. Limits control build cost and duration; they do not establish correctness.

Source: [17_generation_limits.cpp](https://github.com/yanevskiv/llmcpp/blob/main/examples/17_generation_limits.cpp).