ed/Odin
1
0
Fork 0
mirror of https://github.com/Ed94/Odin.git synced 2026-08-06 07:38:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

big: Add factorial, have tests use hex strings.

Browse Source
This commit is contained in:
Jeroen van Rijn
2021-08-11 20:59:52 +02:00
parent db0196abc7
commit e80ac18324
7 changed files with 201 additions and 135 deletions
Download Patch File Download Diff File Expand all files Collapse all files
core/math/big/example.odin
+24 -17
View File
@@ -45,6 +45,7 @@ _SQR_TOOM_CUTOFF,
Category :: enum {
itoa,
atoi,
factorial,
};
Event :: struct {
t: time.Duration,
@@ -52,14 +53,21 @@ Event :: struct {
}
Timings := [Category]Event{};
print :: proc(name: string, a: ^Int, base := i8(10)) {
print :: proc(name: string, a: ^Int, base := i8(10), print_extra_info := false, print_name := false) {
s := time.tick_now();
as, err := itoa(a, base);
Timings[.itoa].t += time.tick_since(s); Timings[.itoa].c += 1;
defer delete(as);
cb, _ := count_bits(a);
fmt.printf("%v (base: %v, bits used: %v): %v\n", name, base, cb, as);
if print_name {
fmt.printf("%v ", name);
}
if print_extra_info {
fmt.printf("(base: %v, bits used: %v): %v\n", base, cb, as);
} else {
fmt.printf("%v\n", as);
}
if err != .None {
fmt.printf("%v (error: %v | %v)\n", name, err, a);
}
@@ -70,22 +78,21 @@ demo :: proc() {
destination, source, quotient, remainder, numerator, denominator := &Int{}, &Int{}, &Int{}, &Int{}, &Int{}, &Int{};
defer destroy(destination, source, quotient, remainder, numerator, denominator);
err = atoi(source, "711456452774621215865929644892071691538299606591173717356248653735056872543694196490784640730887936656406546625676792022", 10);
print("src ", source);
a := "4d2";
b := "1538";
fmt.println("sqrt should be 843478780275248664696797599030708027195155136953848512749494");
fmt.println();
err = sqrt(destination, source);
fmt.printf("sqrt returned: %v\n", err);
print("sqrt ", destination);
err = atoi(denominator, "711456452774621215865929644892071691538299606591173717356248653735056872543694196490784640730887936656406546625676792022", 10);
err = root_n(quotient, denominator, 2);
fmt.printf("root_n(2) returned: %v\n", err);
print("root_n(2)", quotient);
// fmt.println();
if err = atoi(destination, a, 16); err != .None {
fmt.printf("atoi(a) returned %v\n", err);
return;
}
if err = atoi(source, b, 16); err != .None {
fmt.printf("atoi(b) returned %v\n", err);
return;
}
if err = add(destination, destination, source); err != .None {
fmt.printf("add(a, b) returned %v\n", err);
return;
}
}
main :: proc() {