The freestanding build (-DAKERR_USE_STDLIB=OFF) did not compile at all:
bool, PATH_MAX and NULL were used unconditionally in the public header
but only included under the stdlib branch, and the CMake option was
pasted straight into a preprocessor definition, so a non-numeric cache
spelling (-DAKERR_USE_STDLIB=ON) silently evaluated to 0.
- Normalize AKERR_USE_STDLIB to a plain 1/0 in CMake before stamping it,
and use a consistent '#if AKERR_USE_STDLIB' everywhere it is tested.
- Include <stdbool.h>/<stddef.h> unconditionally (freestanding-safe);
keep <stdlib.h>/<string.h>/<stdio.h> behind AKERR_USE_STDLIB; move
<limits.h> out of the public header into src/error.c, its only user.
- Define the freestanding runtime contract: AKERR_RUNTIME_HEADER must
name a header providing exit, memset, snprintf, strcmp, strlen and
strncpy when AKERR_USE_STDLIB is OFF, or the header #errors naming
them. Add cmake/akerr_default_runtime.h, a libc-backed convenience
default so this repo's own OFF build and tests work out of the box.
- Route ENSURE_ERROR_READY's pool-exhaustion path through akerr_exit()
instead of a direct exit(1). Deliberate behavior change: that exit
code moves from 1 to AKERR_EXIT_STATUS_UNREPRESENTABLE (125), the same
sentinel every other unrepresentable status already uses. Documented
in docs/building.md and UPGRADING.md. Not an ABI break.
- Retire PATH_MAX: AKERR_MAX_ERROR_FNAME_LENGTH is now stamped by
scripts/generrno.sh from a new AKERR_MAX_ERROR_FNAME_LENGTH cache
variable, defaulting to 4096 (PATH_MAX on Linux/glibc) so
sizeof(akerr_ErrorContext) and the soname are unchanged. Rewrite the
now-stale PATH_MAX justification in src/lock.h's feature-test-macro
comment.
- Fail the configure with a FATAL_ERROR, not a warning, when
AKERR_USE_STDLIB=OFF and AKERR_THREADS would resolve to pthread,
naming -DAKERR_THREADS=none as the fix.
- Keep the generated errno table (errno.c) out of the OFF build; skip
the 'errno --list' shellout in scripts/generrno.sh under OFF and
stamp AKERR_LAST_ERRNO_VALUE from a new fallback cache variable
(default 133, Linux's EHWPOISON) instead.
- Update docs/building.md: drop the known-defect paragraph, fix
sprintf -> snprintf, add size_t, drop PATH_MAX, and document the new
options and the exit-code change.
- Guard tests/err_errno.c's registered-name assertion behind
AKERR_USE_STDLIB: akerr_init_errno() is not called when it is OFF.
- Add a CI job that configures/builds/tests AKERR_USE_STDLIB=OFF with
AKERR_THREADS=none, plus a compile-only -nostdinc -ffreestanding
check of tests/freestanding_fixture.c against the generated header.
Bump the project version to 2.0.2 (no ABI break: soname and struct
layout are unchanged).
Verified locally: OFF+none configures and builds clean with all tests
passing; ON and the plain default build both build and pass their full
test suites (37/37); OFF with the default/auto thread backend fails
configure with a message naming -DAKERR_THREADS=none; sizeof(akerr_ErrorContext)
is unchanged (37296 bytes, fname/function still 4096 each) versus the
pre-change tree.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Replace the consumer-sized status-name array with private sparse storage and accept arbitrary integer status values. Add explicit range reservations with overlap diagnostics, reserve the library's 0-255 compatibility band, and harden pointer and string boundary handling.
Update regression coverage and document the required migration for custom status-code consumers.
- Added explicit status validation across error handling tests.
- Added lifecycle and slot-leak checks to older tests.
- Improved unhandled-error propagation coverage.
- Added repository guidance and a test runner script.
- Verified all 23 CTest tests pass.
Co-Authored by Codex GPT 5.4
Add 11 CTest programs and a shared test helper covering gaps left by the
original four tests (which only exercised FAIL/CATCH/HANDLE and CLEANUP):
- err_capture.h: capturing akerr_log_method + NDEBUG-proof AKERR_CHECK so
tests can assert on message/status/stacktrace content, not just exit codes
- err_success: clean nested return does not break/handle/leak
- err_pool_refcount: 100k raise->catch->handle cycles leak 0 pool slots
- err_handle_default / err_handle_group / err_handle_dispatch: handler routing
- err_pass / err_ignore / err_swallow: PASS, IGNORE, FINISH(e,false)
- err_break_variants: FAIL_*_BREAK and FAIL_*_RETURN
- err_errno: system errno name lookup + "Unknown Error" boundary
- err_custom_handler: override the unhandled-error hook, assert non-fatally
Register tests via a foreach loop in CMakeLists.txt. Ignore build/.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-Authored-By: Andrew Kesterson <andrew@aklabs.net>
