Files
ww/test/wcc/922_strconv_int_run.c
Hojun-Cho 6a5cdbd779 lib/strconv: parseint sign+overflow core; stoi64/stou64 fidelity (strconv-int fold-1 C1)
Port ref/hare/strconv/stou.ha:8-65 (rune_to_integer + parseint) and the
stoi64/stou64 fidelity rewrite (stoi.ha:9-17, stou.ha:70-76) over the old
digval loop. parseint is the shared sign + per-digit + multiply-overflow
core returning ((bool, u64) | invalid | overflow); stoi64/stou64 destructure
its `(sign, u)` tuple-in-union result — the shape unblocked by #242/#241.

Wins over the prior ad-hoc parse: leading '+' accepted, '-' on stou64 is
overflow (not silently dropped), wraparound overflow detection (n < old),
and the invalid payload carries the offending byte index per Hare.

Tests: lib/strconv/test/inttest.ww (run via test/wcc/922_strconv_int_run.c),
inline per-case checks mirroring Hare's assert sequences stoi.ha:56-86 /
stou.ha:116-138 (Hare's strconv int tests are flat sequences, not row
tables; feedback_test_match_hare_source). Covers valid dec/hex/oct/bin,
+/- sign, invalid+index, overflow, and U64_MAX / I64_MAX / I64_MIN
boundaries. The I64_MIN expectation is spelled -I64_MAX-1 (Hare's own
two's-complement identity) to isolate the test from #245 (wwstage mis-lexes
the literal 9223372036854775808 -> 0); the parse INPUT is unaffected and
yields the correct value on both stages.

combined.ww regen: strconv is compiler-imported (via fmt), so w6c +
wwdump main.combined.ww are regenerated.
2026-06-01 22:26:53 +09:00

55 lines
1.5 KiB
C

/*
* 922_strconv_int_run — execute the lib/strconv/test/inttest fixture
* under the C-side `ww run` driver and assert exit 0.
*
* Same thin-wrapper shape as 922_decimal_run / 909_stof_run: inttest.ww
* carries its own `export fn main()` that drives the @test fns and
* signals which case failed via the exit code (signalled + 10), so a
* non-zero exit pinpoints the failing scenario.
*
* The fixture lives in lib/strconv/test/ (not lib/strconv/) so
* `import strconv` resolves to the lib/strconv DIRECTORY rather than
* shadowing on the strconv.ww FILE — same rationale as 922_decimal_run.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>
static int
runwait(const char *cmd)
{
int rc = system(cmd);
if (rc == -1) return -1;
if (WIFEXITED(rc)) return WEXITSTATUS(rc);
return 1;
}
int
main(void)
{
const char *bin = getenv("BIN");
if (!bin) bin = "out/bin";
char absbin[1024];
if (bin[0] != '/') {
char cwd[1024];
if (getcwd(cwd, sizeof cwd) == NULL) return 1;
snprintf(absbin, sizeof absbin, "%s/%s", cwd, bin);
bin = absbin;
}
char cwd[1024];
if (getcwd(cwd, sizeof cwd) == NULL) return 1;
const char *src = "lib/strconv/test/inttest.ww";
char path[1024], cmd[2048];
snprintf(path, sizeof path, "%s/%s", cwd, src);
snprintf(cmd, sizeof cmd, "%s/ww run %s", bin, path);
int rc = runwait(cmd);
if (rc != 0) {
fprintf(stderr, "strconv_int_run FAIL: %s exited %d\n", src, rc);
return 1;
}
printf("strconv_int_run: %s ok\n", src);
return 0;
}