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math.big: remove import math dependency (math.big only uses min/max/abs)

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This commit is contained in:
Delyan Angelov
2022-11-29 14:21:16 +02:00
parent 6ef3dfdea9
commit 952f4644c5
4 changed files with 43 additions and 23 deletions
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17
vlib/math/big/integer.v
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@ -1,13 +1,10 @@
module big
import math
import math.bits
import strings
import strconv
const (
digit_array = '0123456789abcdefghijklmnopqrstuvwxyz'.bytes()
)
const digit_array = '0123456789abcdefghijklmnopqrstuvwxyz'.bytes()
// big.Integer
// -----------
@ -55,7 +52,7 @@ pub fn integer_from_int(value int) Integer {
return zero_int
}
return Integer{
digits: [u32(math.abs(value))]
digits: [u32(iabs(value))]
signum: int_signum(value)
}
}
@ -327,7 +324,7 @@ pub fn (integer Integer) - (subtrahend Integer) Integer {
fn (integer Integer) add(addend Integer) Integer {
a := integer.digits
b := addend.digits
mut storage := []u32{len: math.max(a.len, b.len) + 1}
mut storage := []u32{len: imax(a.len, b.len) + 1}
add_digit_array(a, b, mut storage)
return Integer{
signum: integer.signum
@ -585,7 +582,7 @@ pub fn (mut a Integer) set_bit(i u32, value bool) {
pub fn (a Integer) bitwise_or(b Integer) Integer {
check_sign(a)
check_sign(b)
mut result := []u32{len: math.max(a.digits.len, b.digits.len)}
mut result := []u32{len: imax(a.digits.len, b.digits.len)}
bitwise_or_digit_array(a.digits, b.digits, mut result)
return Integer{
digits: result
@ -597,7 +594,7 @@ pub fn (a Integer) bitwise_or(b Integer) Integer {
pub fn (a Integer) bitwise_and(b Integer) Integer {
check_sign(a)
check_sign(b)
mut result := []u32{len: math.max(a.digits.len, b.digits.len)}
mut result := []u32{len: imax(a.digits.len, b.digits.len)}
bitwise_and_digit_array(a.digits, b.digits, mut result)
return Integer{
digits: result
@ -620,7 +617,7 @@ pub fn (a Integer) bitwise_not() Integer {
pub fn (a Integer) bitwise_xor(b Integer) Integer {
check_sign(a)
check_sign(b)
mut result := []u32{len: math.max(a.digits.len, b.digits.len)}
mut result := []u32{len: imax(a.digits.len, b.digits.len)}
bitwise_xor_digit_array(a.digits, b.digits, mut result)
return Integer{
digits: result
@ -941,7 +938,7 @@ fn gcd_binary(x Integer, y Integer) Integer {
mut az := a.msb()
bz := b.msb()
shift := math.min(az, bz)
shift := umin(az, bz)
b = b.rshift(bz)
for a.signum != 0 {