C++ Code Editor
A lightweight in-browser editor for C++ code that compiles, runs, and debugs snippets, ideal for students, educators, and developers testing ideas quickly.
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About This Tool
Under the hood a WebAssembly toolchain compiles sources against a selectable C++ standard, resolves include paths, and enforces sandboxed resource limits. If compilation succeeds, the resulting executable runs with optional input, and stdout and stderr are captured alongside an exit code and simple memory usage metrics. Diagnostics map directly to source lines to facilitate debugging and iteration.
A key differentiator is the ability to work with small multi-file projects through a virtual in-browser file system, which lets users organize code without leaving the browser. It emphasizes reproducibility by returning structured results that can be consumed by automated tests or educational tooling. It is especially valuable for quick prototypes, homework checks, and interview practice where setup time would otherwise slow progress.
Because the environment is sandboxed and browser-based, it minimizes risk while maximizing iteration speed. Users can test short snippets, compare outcomes across standards, and export code or transcripts of runs for grading or sharing.
How to Use
- Provide inputs: paste your C++ source into the editor, select a standard (e.g., C++17 or C++
- , and set optional compiler flags.
- Configure inputs: supply include_paths, macros, and any runtime_input if your program reads from stdin.
- Run code: initiate compilation and execution; the tool compiles, links, and runs in a sandbox.
- Review outputs: inspect compile diagnostics, runtime_output, runtime_error, and exit_code; check memory_used_mb if shown.
- Iterate: modify code or flags and re-run to refine results; repeat as needed to reach correctness or performance goals.
- Export: copy code and outputs or export the session for grading or collaboration.
Frequently Asked Questions
Find Quick Answers
What C++ standards are supported?
Can I run multi-file projects?
How are results reported?
Is my code private?
Need to run multiple calculations?
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