r/Cplusplus 11h ago

Feedback I built a benchmark from jira tickets, LLMs get 47-61% on Cpp tasks

3 Upvotes

everyone says AI is good at C++ now but the benchmarks they quote are all competitive programming stuff. so I made one from real firmware tickets - SCPI commands, register maps, datasheet lookups, spec debugging.

frontier models: 47-61%. on SCPI the best one got 36%. one got 0%.

i mean the worst part is they never say idk. for example: vmulq_s64 as a neon intrinsic which doesn't exist.

simple tools like search on docs with gpt-5.4-mini resolved 89% of tickets much better than frontier models

src: github.com/ByteAsk/C-CppBench
i have added mcp search tool as well: github.com/ByteAsk/ByteAsk-Embedded-MCP (MIT)


r/Cplusplus 14h ago

Tutorial Building a toy programming language in C++. Today's topic: Variables

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pvs-studio.com
3 Upvotes

Hey. There's a series of livecoding sessions on building a custom programming language in cpp (nothing too serious, all just for fun). In a few hours, there'll be an online session covering variables. It’s a good one to join and ask questions along the way. You'll need to sign up.

If you'd like some context before joining, here is a full youtube playlist of previous eps