Question 1

How to integrate sfl library with CMake?

Accepted Answer

Use FetchContent to declare the Git repository and make it available, then link it to your target. The README provides clear CMake code snippets for this process.

Question 2

sfl containers vs standard library: which is better for performance?

Accepted Answer

sfl excels in specific scenarios like embedded systems (static containers) or small element counts (small buffer optimization), but for general use, std containers are simpler and more widely supported. Benchmark based on your access patterns.

Question 3

Can I use sfl without exceptions?

Accepted Answer

Yes, define SFL_NO_EXCEPTIONS to replace exceptions with std::abort calls. However, note that it doesn't auto-detect compiler flags like -fno-exceptions, requiring manual configuration.

Question 4

What's the difference between flat_map and unordered_map in sfl?

Accepted Answer

flat_map uses sorted vectors for cache-friendly iteration but slower insertions/deletions, while unordered_map uses hash tables for average O(1) operations but with more memory overhead. Choose based on your read/write balance.

Question 5

How does small_vector compare to static_vector?

Accepted Answer

small_vector embeds static storage for small counts but can dynamically grow beyond it, while static_vector has fixed compile-time capacity and never uses heap memory. Use static_vector for strict no-dynamic-allocation requirements.

Question 6

Is sfl tested with C++23 features?

Accepted Answer

Yes, the library is tested with GCC and Clang for C++11 through C++23, and it leverages newer standards when available, though its core design remains C++11-compatible.

Question 7

How to handle errors when exceptions are disabled?

Accepted Answer

With SFL_NO_EXCEPTIONS defined, errors trigger std::abort, so you must ensure correct usage via assertions or external checks. The library uses assert extensively for debugging.

sfl library

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