Subreddit rules check
r/cpp
Can you promote here?
Promotion is allowed only with moderator permission (or inside designated threads). A short, honest modmail before posting costs two minutes and functions as a safe-conduct pass; skipping it is the most common avoidable removal.
Links
The rules clearly allow links. A plain-text mention still often outperforms a URL from a young account.
What this community rewards
Dominant post formats: news, showcase, discussion
Headline: short, technical, specific (library/tool name, std:: feature, or benchmark). Write in first person only for personal reports; otherwise third-person/neutral. Typical length: short title + a concise link/summary; comments are technical and evidence-driven. Upvoted: novel tooling, benchmarks, std proposals, clear how-to’s; avoid clickbait/product marketing or low-effort PR — ask mods if unsure.
Arriving in the local format matters: cross-posting the same text everywhere reads as tourist instantly. The wider method is in the Reddit playbook.
Classified mechanically from the community's published rules and recent top posts, last checked September 2026. Rules change and moderators have the final say: verify at r/cpp's rules page before posting anything that matters.
Thread Otter checks this before every send
These profiles power the product: promo-banned communities never receive a promotional draft, drafts arrive in the local format, and a fact-check gate plus human pacing protect the account doing the talking.