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sx/examples/ffi/1223-ffi-extern-fn.sx
agra 66bdc70bf1 test: group examples into per-category folders
Move examples/*.sx and their expected/ snapshots into per-category
subfolders (examples/<category>/...). Folder = leading filename token,
with ffi-objc/ffi-jni kept whole; filenames are unchanged. The corpus
runner and LSP sweep now discover each category's expected/ dir, while
issues/ stays flat. Example 1058's repo-root-relative companion import
is made file-relative. Path strings embedded in 164 snapshots were
regenerated (path-only changes). Test-layout docs in CLAUDE.md updated.
2026-06-21 14:41:34 +03:00

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// extern function binding (FFI-linkage stream, Phase 1): bind libc's `abs`
// directly via the bare `extern` linkage modifier — no `extern`, no
// `#library`. `extern` ⇒ external linkage + C ABI + no sx ctx; the symbol
// resolves against the default-linked libc at link time. The sx name `abs`
// IS the C symbol (no rename — the `extern LIB "csym"` forms land in 1.2).
#import "modules/std.sx";
abs :: (n: i32) -> i32 extern;
main :: () -> i32 {
print("abs(-7) = {}\n", abs(xx -7));
print("abs(42) = {}\n", abs(xx 42));
0
}