`stack-graphs` C API exports are safe `extern "C"` functions

stackgraphs::c is a public module. From 0.0.3 through the current crates.io release 0.14.1, its pointer-taking entry points are pub extern "C" fn rather than unsafe fn. Safe Rust can call them. sgstackgraphfree frees the pointer with Box::fromraw. sgstackgraphfreestd::ptr::nullmut is immediate...

`stack-graphs` is archived and unmaintained

The upstream repository github/stack-graphs has been archived. Issues and pull requests are disabled, so maintainers cannot be reached there. The last crates.io release is 0.14.1 2024-12-13. The repository's last push was 2025-09-09. There is no published successor...