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big: Add internal_int_exponent_mod.

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This commit is contained in:
Jeroen van Rijn
2021-09-01 19:13:47 +02:00
parent c3a70ac277
commit 65a15e9c06
13 changed files with 294 additions and 46 deletions
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core/math/big/example.odin
+20 -4
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@@ -1,6 +1,4 @@
//+ignore
package math_big
/*
Copyright 2021 Jeroen van Rijn <nom@duclavier.com>.
Made available under Odin's BSD-3 license.
@@ -9,6 +7,8 @@ package math_big
For the theoretical underpinnings, see Knuth's The Art of Computer Programming, Volume 2, section 4.3.
The code started out as an idiomatic source port of libTomMath, which is in the public domain, with thanks.
*/
package math_big
import "core:fmt"
import "core:mem"
@@ -18,11 +18,14 @@ print_configation :: proc() {
`
Configuration:
_DIGIT_BITS %v
_SMALL_MEMORY %v
_MIN_DIGIT_COUNT %v
_MAX_DIGIT_COUNT %v
_DEFAULT_DIGIT_COUNT %v
_MAX_COMBA %v
_WARRAY %v
_TAB_SIZE %v
_MAX_WIN_SIZE %v
Runtime tunable:
MUL_KARATSUBA_CUTOFF %v
SQR_KARATSUBA_CUTOFF %v
@@ -34,11 +37,14 @@ Runtime tunable:
FACTORIAL_BINARY_SPLIT_MAX_RECURSIONS %v
`, _DIGIT_BITS,
_LOW_MEMORY,
_MIN_DIGIT_COUNT,
_MAX_DIGIT_COUNT,
_DEFAULT_DIGIT_COUNT,
_MAX_COMBA,
_WARRAY,
_TAB_SIZE,
_MAX_WIN_SIZE,
MUL_KARATSUBA_CUTOFF,
SQR_KARATSUBA_CUTOFF,
MUL_TOOM_CUTOFF,
@@ -203,8 +209,18 @@ int_to_byte_little :: proc(v: ^Int) {
}
demo :: proc() {
// a, b, c, d, e, f := &Int{}, &Int{}, &Int{}, &Int{}, &Int{}, &Int{};
// defer destroy(a, b, c, d, e, f);
a, b, c, d, e, f, res := &Int{}, &Int{}, &Int{}, &Int{}, &Int{}, &Int{}, &Int{};
defer destroy(a, b, c, d, e, f, res);
set(a, 42);
set(b, 6);
set(c, 5);
if err := internal_int_exponent_mod(res, a, b, c, 0); err != nil {
fmt.printf("Error: %v\n", err);
}
print("res: ", res);
}
main :: proc() {