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big: itoa now works for arbitrary radixes.

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This commit is contained in:
Jeroen van Rijn
2021-08-11 20:59:51 +02:00
parent c2255c6c19
commit 1ebaa9fb3b
4 changed files with 202 additions and 80 deletions
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core/math/big/example.odin
+28 -31
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@@ -43,47 +43,44 @@ _SQR_TOOM_CUTOFF,
print :: proc(name: string, a: ^Int, base := i8(16)) {
as, err := itoa(a, base);
defer delete(as);
if err == .None {
cb, _ := count_bits(a);
fmt.printf("%v (base: %v, bits used: %v): %v\n", name, base, cb, as);
} else {
fmt.printf("%v (error: %v): %v\n", name, err, a);
cb, _ := count_bits(a);
fmt.printf("%v (base: %v, bits used: %v): %v\n", name, base, cb, as);
if err != .None {
fmt.printf("%v (error: %v | %v)\n", name, err, a);
}
}
num_threads :: 16;
global_traces_indexes := [num_threads]u16{};
@thread_local local_traces_index : ^u16;
init_thread_tracing :: proc(thread_id: u8) {
fmt.printf("%p\n", &global_traces_indexes[thread_id]);
fmt.printf("%p\n", local_traces_index);
}
demo :: proc() {
err: Error;
i: int;
destination, source, quotient, remainder, numerator, denominator := &Int{}, &Int{}, &Int{}, &Int{}, &Int{}, &Int{};
defer destroy(destination, source, quotient, remainder, numerator, denominator);
err = set(numerator, 15625);
err = set(denominator, 3);
print("numerator ", numerator, 10);
print("denominator", denominator, 10);
i, err = _int_div_3(quotient, numerator);
print("quotient ", quotient, 10);
fmt.println("remainder ", i);
fmt.println("error", err);
fmt.println(); fmt.println();
err = set (numerator, 15625);
err = set (denominator, 3);
err = set (numerator, 2);
err = set (denominator, 3);
err = zero(quotient);
err = zero(remainder);
print("numerator ", numerator, 10);
print("denominator", denominator, 10);
err = _int_div_small(quotient, remainder, numerator, denominator);
print("quotient ", quotient, 10);
print("remainder ", remainder, 10);
err = pow(numerator, numerator, 260);
if err != .None {
fmt.printf("Error: %v\n", err);
} else {
print("numerator ", numerator, 16);
print("denominator", denominator, 10);
print("quotient ", quotient, 10);
print("remainder ", remainder, 10);
}
}
main :: proc() {