{"slug": "cplusplus-insights", "name": "C++ Insights", "category": "other", "category_name": "Other software", "description": "", "recommenders": 5, "commenters": 5, "warners": 0, "score": 4.913, "rising": 5.0, "first": "2026-10-01", "latest": "2026-10-04", "why": "it's a great example of how this tool is useful to learn about those things", "why_is_quote": true, "has_verdict": false, "sentiment": {"recommend": 5, "neutral": 0, "compare": 0, "warn": 0}, "spark": [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5], "listed": true, "loved": [], "caveat": "", "short_quote": "it's a great example of how this tool is useful to learn about those things", "kind": "", "icon": true, "domain": "cppinsights.io", "github_repo": null, "official_url": "https://cppinsights.io", "pricing": "", "aliases": ["C++ Insights"], "verdict": null, "praise": [{"label": "", "summary": "", "quotes": [{"id": 799318096, "item_id": 49957381, "url": "https://news.ycombinator.com/item?id=49957381", "by": "aktenlage", "date": "2026-10-04", "stance": "recommend", "quote": "Wow, that's awesome.", "excerpt": "Wow, that's awesome. I've been writing C++ since 20 years, and I still stumble over details where I ask myself what exactly is happening. Looking at the machine code is often quite opaque to me, and so is the reference, because it is overly formal. So this will be a great alternative to get a quick understanding of a concrete snippet. Thank you!", "context": "C++ developer for 20 years", "use_case": "understanding C++ code", "switched_from": "", "story": "C++ Insights \u2013 See your source code with the eyes of a Compiler"}, {"id": 799272752, "item_id": 49954547, "url": "https://news.ycombinator.com/item?id=49954547", "by": "jruohonen", "date": "2026-10-04", "stance": "recommend", "quote": "that is pretty nice for educational purposes", "excerpt": "The online interface was buried somewhere there, but that is pretty nice for educational purposes: https://cppinsights.io/", "context": "", "use_case": "Educational compiler view", "switched_from": "", "story": "C++ Insights \u2013 See your source code with the eyes of a Compiler"}, {"id": 799160240, "item_id": 49947515, "url": "https://news.ycombinator.com/item?id=49947515", "by": "sltkr", "date": "2026-10-03", "stance": "recommend", "quote": "it's a great example of how this tool is useful to learn about those things", "excerpt": "C++ lambdas are just structs that overload operator(); once you realize that they become a lot less mysterious. But it's a great example of how this tool is useful to learn about those things (of course you could also read the C++ standard but who has time for that?) Here's an example: https://cppinsights.io/s/f04b6896 (That also shows how C++'s range-based for-loops work, which is similarly some syntactic suger for ", "context": "", "use_case": "Learning C++ compiler transformations", "switched_from": "", "story": "C++ Insights \u2013 See your source code with the eyes of a Compiler"}, {"id": 798853792, "item_id": 49928362, "url": "https://news.ycombinator.com/item?id=49928362", "by": "rramadass", "date": "2026-10-01", "stance": "recommend", "quote": "The tool can be found at - https://cppinsights.io/", "excerpt": "The tool can be found at - https://cppinsights.io/", "context": "", "use_case": "", "switched_from": "", "story": "C++ Insights \u2013 See your source code with the eyes of a Compiler"}]}], "caveats": [], "who": [{"by": "aktenlage", "context": "C++ developer for 20 years", "url": "https://news.ycombinator.com/item?id=49957381", "date": "2026-10-04"}], "tags": [], "use_cases": ["understanding c++ code", "educational compiler view", "viewing compiler-transformed c++ code", "learning c++ compiler transformations"], "compared": [], "makers": [], "threads": [{"url": "https://news.ycombinator.com/item?id=49928361", "title": "C++ Insights \u2013 See your source code with the eyes of a Compiler", "mentions": 5}], "sentiment_by_month": {"2025-11": {}, "2025-12": {}, "2026-01": {}, "2026-02": {}, "2026-03": {}, "2026-04": {}, "2026-05": {}, "2026-06": {}, "2026-07": {}, "2026-08": {}, "2026-09": {}, "2026-10": {"recommend": 5}}, "quotes": [{"id": 799318096, "item_id": 49957381, "url": "https://news.ycombinator.com/item?id=49957381", "by": "aktenlage", "date": "2026-10-04", "stance": "recommend", "quote": "Wow, that's awesome.", "excerpt": "Wow, that's awesome. I've been writing C++ since 20 years, and I still stumble over details where I ask myself what exactly is happening. Looking at the machine code is often quite opaque to me, and so is the reference, because it is overly formal. So this will be a great alternative to get a quick understanding of a concrete snippet. Thank you!", "context": "C++ developer for 20 years", "use_case": "understanding C++ code", "switched_from": "", "story": "C++ Insights \u2013 See your source code with the eyes of a Compiler"}, {"id": 799272752, "item_id": 49954547, "url": "https://news.ycombinator.com/item?id=49954547", "by": "jruohonen", "date": "2026-10-04", "stance": "recommend", "quote": "that is pretty nice for educational purposes", "excerpt": "The online interface was buried somewhere there, but that is pretty nice for educational purposes: https://cppinsights.io/", "context": "", "use_case": "Educational compiler view", "switched_from": "", "story": "C++ Insights \u2013 See your source code with the eyes of a Compiler"}, {"id": 799217376, "item_id": 49951086, "url": "https://news.ycombinator.com/item?id=49951086", "by": "Someone", "date": "2026-10-04", "stance": "recommend", "quote": "", "excerpt": "> That also shows how C++'s range-based for-loops work, which is similarly some syntactic suger for a fairly mundane for-loop, but details are interesting: unlike a typical for-loop, the loop variable is declared inside the loop body That\u2019s not true in C++, is it? There, this does not compile for(int i = 0; i < 3; ++i) {} i = i + 1; (https://cppinsights.io/s/26405687: error: use of undeclared identifier 'i') https://", "context": "", "use_case": "Viewing compiler-transformed C++ code", "switched_from": "", "story": "C++ Insights \u2013 See your source code with the eyes of a Compiler"}, {"id": 799160240, "item_id": 49947515, "url": "https://news.ycombinator.com/item?id=49947515", "by": "sltkr", "date": "2026-10-03", "stance": "recommend", "quote": "it's a great example of how this tool is useful to learn about those things", "excerpt": "C++ lambdas are just structs that overload operator(); once you realize that they become a lot less mysterious. But it's a great example of how this tool is useful to learn about those things (of course you could also read the C++ standard but who has time for that?) Here's an example: https://cppinsights.io/s/f04b6896 (That also shows how C++'s range-based for-loops work, which is similarly some syntactic suger for ", "context": "", "use_case": "Learning C++ compiler transformations", "switched_from": "", "story": "C++ Insights \u2013 See your source code with the eyes of a Compiler"}, {"id": 798853792, "item_id": 49928362, "url": "https://news.ycombinator.com/item?id=49928362", "by": "rramadass", "date": "2026-10-01", "stance": "recommend", "quote": "The tool can be found at - https://cppinsights.io/", "excerpt": "The tool can be found at - https://cppinsights.io/", "context": "", "use_case": "", "switched_from": "", "story": "C++ Insights \u2013 See your source code with the eyes of a Compiler"}]}