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bigint: itoa support for arbitrary precision if is_power_of_two(radix)

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This commit is contained in:
Jeroen van Rijn
2021-08-11 20:59:50 +02:00
parent e600e5947b
commit 5af85aed3d
4 changed files with 82 additions and 16 deletions
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core/math/bigint/example.odin
+13 -11
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@@ -46,37 +46,39 @@ demo :: proc() {
as, bs, cs: string;
err: Error;
a, err = init(-512);
a, err = init();
a.digit[2] = 512;
a.used = 3;
defer destroy(a);
as, err = itoa(a);
as, err = itoa(a, 16);
fmt.printf("a: %v, err: %v\n\n", as, err);
delete(as);
b, err = init(42);
defer destroy(b);
bs, err = itoa(b);
bs, err = itoa(b, 16);
fmt.printf("b: %s, err: %v\n\n", bs, err);
delete(bs);
c, err = init(-4);
defer destroy(c);
cs, err = itoa(c);
cs, err = itoa(c, 16);
fmt.printf("c: %s, err: %v\n\n", cs, err);
delete(cs);
cstr: cstring;
defer delete(cstr);
// cstr: cstring;
// defer delete(cstr);
cstr, err = itoa_cstring(a);
fmt.printf("cstring: %v, err: %v\n\n", cstr, err);
// cstr, err = itoa_cstring(a);
// fmt.printf("cstring: %v, err: %v\n\n", cstr, err);
fmt.println("=== Add ===");
err = sub(c, a, b);
fmt.printf("Error: %v\n", err);
as, err = itoa(a, 8);
bs, err = itoa(b);
cs, err = itoa(c);
as, err = itoa(a, 16);
bs, err = itoa(b, 16);
cs, err = itoa(c, 16);
fmt.printf("a: %v, bits: %v\n", as, count_bits(a));
fmt.printf("b: %v, bits: %v\n", bs, count_bits(b));
fmt.printf("c: %v, bits: %v\n", cs, count_bits(c));