Zig beats C for systems programming

Zig succeeds where Rust encounters friction by fixing C's core flaws rather than imposing a completely different systems programming philosophy. It preserves the transparent, low-overhead mental model systems engineers rely on while cutting out decades of undefined behavior and macro hazards.

• –`errdefer` and `std.testing.FailingAllocator` streamline resource management and make failure path testing deterministic without messy `goto` chains.
• –Slices with runtime bounds checking eliminate common buffer overflows and pointer calculation errors by default.
• –`comptime` replaces fragile preprocessor macros with type-safe, readable code execution at compile time.
• –The `zig cc` toolchain functions as a drop-in C cross-compiler, enabling painless incremental adoption in existing C projects.
• –Language volatility remains an ongoing cost, as pre-1.0 releases like 0.17 continue to introduce breaking changes across existing codebases.