diff options
Diffstat (limited to 'core/test-module.c')
| -rw-r--r-- | core/test-module.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/core/test-module.c b/core/test-module.c index cb8e228..36722d2 100644 --- a/core/test-module.c +++ b/core/test-module.c @@ -6962,6 +6962,33 @@ static void timers(void) { CHECK(load(bad, &module_b) == PURE_INVALID && strstr(error, "view with an effect")); } +/* Floor division of numbers (027's stage 5): as Python's //, the quotient MOD's remainder leaves, exactly (1 // 0.1 is 9: + * 0.1 is a little more than a tenth), its zero signed as a / b; by zero it fails as divide. */ +static void floor_division(void) { + enum { FDIV = PURE_OP_FLOORDIV }; + static const S nums[] = {{"a", 0}, {"b", 0}, {"c", 0}, {"d", 0}, {"e", 0}, {"f", 0}}; + static const I inputs[] = {KEY("go", "KeyG"), KEY("zero", "KeyZ")}; + static const O code[] = { + {C, 0, 7}, {C, 0, 2}, {FDIV, 0, 0}, {ST, 0, 0}, {C, 0, -7}, {C, 0, 2}, {FDIV, 0, 0}, {ST, 1, 0}, + {C, 0, 7}, {C, 0, -2}, {FDIV, 0, 0}, {ST, 2, 0}, {C, 0, 1}, {C, 0, 0.1}, {FDIV, 0, 0}, {ST, 3, 0}, + {C, 0, 0}, {C, 0, -3}, {FDIV, 0, 0}, {ST, 4, 0}, {C, 0, 1e300}, {C, 0, 7}, {FDIV, 0, 0}, {ST, 5, 0}, + {C, 0, 1}, {C, 0, 0}, {FDIV, 0, 0}, {ST, 0, 0}, + }; + static const H handlers[] = {{1, 0, 24}, {3, 24, 4}}; + static const V none[] = {{"v", 0, 1}}; + Spec spec = SPEC(nums, inputs, none, handlers, code); + spec.nv = 0; + if (load(spec, &module_a) != PURE_OK) { fprintf(stderr, "floor division: %s\n", error); abort(); } + PureApp app; + CHECK(pure_app_start(&app, &module_a, (PureData){0}) == PURE_OK && press(&app, 0) == PURE_OK); + double huge = 1e300, quotient = (huge - fmod(huge, 7)) / 7; + CHECK(app.values[0].num == 3 && app.values[1].num == -4 && app.values[2].num == -4 && app.values[3].num == 9 && + app.values[4].num == 0 && signbit(app.values[4].num) && app.values[5].num == floor(quotient)); + CHECK(press(&app, 1) == PURE_INVALID && app.fault == PURE_FAULT_DIVIDE && app.values[0].num == 3); + pure_app_stop(&app); + printf("{\"floor_division\":6}\n"); +} + /* A number is written with the fewest digits that read back as it, the * digits %g gives (with its exponent's leading zeros dropped): the same * text as that search over precisions, for values of every kind. */ @@ -7312,6 +7339,7 @@ int main(void) { bytes_fields(); anchors(); list_views(); + floor_division(); memory_budget(); work_budget(); fold_mutations(); |