Files
sx/examples/1021-errors-main-exit-truncation.sx
agra 4e942b5373 test: migrate examples to XXXX-category-name layout + split expected streams
Rename all example tests/companions to the XXXX-category-test-name scheme
(per-category 100-blocks: basic 0010, types 0100, ... errors 1000,
diagnostics 1100, ffi 1200, ffi-objc 1300, ffi-jni 1400, vectors 1500,
platform 1600). Companions and dir/C fixtures move in lockstep with their
parent test; #import/#source/#include paths rewritten to match.

Expected output now lives in examples/expected/ (a sibling dir of the
tests) split into three streams per the new convention:
  <name>.exit / <name>.stdout / <name>.stderr  (+ optional <name>.ir)

run_examples.sh rewritten: scans examples/ and issues/ for an
expected/<name>.exit marker, captures stdout and stderr separately (no
more 2>&1), compares each stream + exit + optional IR snapshot.

Behavior validated unchanged: every renamed test reproduces its prior
merged output + exit (diffs limited to file paths/basenames embedded in
diagnostics + traces, which correctly reflect the new names). Suite:
292 passed, 0 failed. 50-smoke.sx split + issue relocation + docs follow
in subsequent commits.
2026-06-01 19:05:15 +03:00

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// Entry-point exit-code truncation (ERR step E4.2, non-failable integer main).
// `main :: () -> T` (integer) exits with the return value truncated to u8 —
// matching C `main` / the OS exit-status byte, so the JIT (`sx run`) and an AOT
// binary agree. Here 1105 & 0xFF == 81, so this program exits 81 (NOT 1, which
// was the old buggy "out of 0..255 range -> failure" behavior).
//
// Run: ./zig-out/bin/sx run examples/238-main-exit-truncation.sx ; echo $? # 81
#import "modules/std.sx";
main :: () -> s32 {
print("returning 1105 -> exit {}\n", 1105 & 0xFF); // 81
return 1105;
}