v0.1.12

NexusFIX v0.1.12

C++23 Feature Adoption

Highlights

• 45% overall C++23 adoption rate - 28 features adopted
• Zero performance impact - pure code modernization

C++23 Adoption Summary

Category	Adopted	Blocked (GCC 14+)	Rate
Language Features	9	1	53%
Library Features	19	8	~42%
Total	28	9	~45%

Benchmark Results

Metric	Before	After	Delta
ExecutionReport Parse (Mean)	202.66 ns	199.64 ns	-1.5%
NewOrderSingle Parse (Mean)	200.80 ns	195.13 ns	-2.8%

Deltas within noise - confirms zero regression.

What's New

• nfx::util::print() / println() - C++23 formatted output with fallback
• nfx::util::enumerate() / chunk() / slide() / stride() - Range adaptors
• nfx::util::contains() - Range membership test
• format_to_string() / build_string() - Zero-init buffer building
• if consteval replaces is_constant_evaluated()
• uz size_t literals for type safety

Upgrade Notes

Fully backward compatible:

nfx::util::println("Price: {}", price);
for (auto [i, val] : nfx::util::enumerate(data)) { ... }

Full Changelog: v0.1.11...v0.1.12