Brummel
72e54f4fd3
The surface-form file extension changes from .ailx to .ail. AILang's
authoring surface now uses the same .ail stem as its canonical JSON
form (.ail.json), giving the language a single coherent extension
family: .ail is the LLM-authored Form A, .ail.json is the canonical
JSON-AST Form B.
Scope (touched):
- 61 example renames examples/**/*.ailx → .ail (git mv)
- 1 rename experiments/.../rendered/ailx.md → ail.md
- 35 content-edited live-toolchain files (crates/, docs/DESIGN.md,
docs/roadmap.md, docs/PROSE_ROUNDTRIP.md, skills/, bench/reference/*.c,
experiment crates under experiments/.../{render,harness,master})
- Experiment-crate cohort rename Cohort::Ailx → Cohort::Ail,
Form::Ailx → Form::Ail, per_cohort/ailx → per_cohort/ail,
{form-only: ailx} → {form-only: ail}, ```ailx → ```ail
Out of scope (deliberately untouched, to preserve honest history):
- docs/journal-archive.md (content-frozen per CLAUDE.md)
- docs/journals/, docs/specs/, docs/plans/, bench/orchestrator-stats/
- experiments/.../runs/ (frozen LLM-output artefacts; models actually
saw .ailx — renaming would falsify the experimental record)
Verification: cargo build/test --workspace green; experiment crate
cargo test green; bench/check.py + compile_check.py + cross_lang.py
all 0-regressed; negative grep for ailx|Ailx|AILX outside the
out-of-scope paths returns zero matches.
Opens immediate follow-up: roadmap.md P2 todo `ail check`/build/run
accept .ail extension — after this rename, .ail is canonical
authoring surface but the CLI still produces a misleading JSON-parse
error on `ail check foo.ail`. That's the next iter.
69 lines
2.0 KiB
C
69 lines
2.0 KiB
C
// Hand-C reference for bench_list_sum.
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//
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// Same algorithm as examples/bench_list_sum.ail — build a linked list
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// of [0, 1, ..., N-1] via prepending, then sum by linear traversal.
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// Three workload sizes: 100k / 1M / 3M cells, matching the AILang
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// fixture exactly so the AILang/C wall-time ratio is fair.
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//
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// Cell layout: { long head; struct cell *tail; } — 16 bytes (8 head
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// + 8 pointer). AILang's IntList ICons cell is wider (tag + payload +
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// tail = 24 bytes) because the runtime carries a constructor tag for
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// the discriminated-union. The 1.5x size difference is one of the
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// real costs of the discriminated-union representation; quoting the
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// raw ratio without naming this is the wrong comparison.
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//
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// Memory policy: this reference uses malloc and DELIBERATELY DOES
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// NOT FREE. That matches AILang's bench_list_sum running under
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// --alloc=rc with implicit-mode params (cells leak by design — the
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// 18c.3 known debt). The fair comparison is therefore:
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// AILang --alloc=rc (implicit-mode, leaks) vs. this C (leaks)
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// A future iter that ships explicit-mode bench_list_sum + a free()-
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// adding C variant would close the apples-to-apples gap on the
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// dec-cost axis.
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//
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// Build: clang -O2 -o list_sum list_sum.c
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// Expected stdout (one int per line):
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// 4999950000
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// 499999500000
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// 4499998500000
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#include <stdio.h>
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#include <stdlib.h>
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typedef struct cell {
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long head;
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struct cell *tail;
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} cell_t;
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static cell_t *cons_n(long n) {
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cell_t *acc = NULL;
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for (long i = n - 1; i >= 0; i--) {
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cell_t *c = (cell_t *) malloc(sizeof(cell_t));
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c->head = i;
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c->tail = acc;
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acc = c;
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}
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return acc;
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}
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static long sum_list(const cell_t *xs) {
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long acc = 0;
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while (xs) {
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acc += xs->head;
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xs = xs->tail;
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}
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return acc;
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}
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static void run_one(long n) {
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const cell_t *xs = cons_n(n);
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printf("%ld\n", sum_list(xs));
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}
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int main(void) {
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run_one(100000);
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run_one(1000000);
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run_one(3000000);
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return 0;
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}
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