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big: Add _private_int_sqr_karatsuba.

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Jeroen van Rijn
2021-08-11 00:37:34 +02:00
parent 6c681b258c
commit 2b274fefbb
3 changed files with 91 additions and 12 deletions
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core/math/big/example.odin
+15 -4
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@@ -80,16 +80,27 @@ demo :: proc() {
err: Error;
bs: string;
if err = factorial(a, 500); err != nil { fmt.printf("factorial err: %v\n", err); return; }
// if err = factorial(a, 850); err != nil { fmt.printf("factorial err: %v\n", err); return; }
foo := "615037959146039477924633848896619112832171971562900618409305032006863881436080";
if err = atoi(a, foo, 10); err != nil { return; }
print("a: ", a, 10, true, true, true);
fmt.println();
{
SCOPED_TIMING(.sqr);
if err = sqr(b, a); err != nil { fmt.printf("sqr err: %v\n", err); return; }
if err = sqr(b, a); err != nil { fmt.printf("sqr err: %v\n", err); return; }
}
fmt.println();
print("b _sqr_karatsuba: ", b);
fmt.println();
bs, err = itoa(b, 10);
bs, err = itoa(b, 16);
defer delete(bs);
assert(bs[:50] == "14887338741396604108836218987068397819515734169330");
if bs[:50] != "1C367982F3050A8A3C62A8A7906D165438B54B287AF3F15D36" {
fmt.println("sqr failed");
}
}
main :: proc() {